CALCULIO TERMS OF SERVICE

1.1. "Calculio" refers to Calculio s.r.o., with registered office at Martinská 1442, Kolín V, 280 02 Kolín, Czech Republic, ID number: 17887577, incorporated under the laws of the Czech Republic, registered at Municipal Court in Prague under file no. C 378240.

1.2. Pronouns "you" and "user" refer to you as a user of the Service. Users fall into one or more of the following categories:

1. "Trial users" use the Service for free but only during a trial period and with limited functionalities provided by Calculio.
2. "Freemium users" use the Service for free with a daily usage limit.
3. "Subscription users" use the Service based on a Subscription plan purchased by the user.

Details of the Service usage options may be found on the Website or in the App.

1.3. "Affiliate" of a person is any person that controls, is controlled by, or is under common control with, such person. The term "control" ("controlled by") means the power to direct or cause direction of management and policies of a person, whether through the ownership of voting securities, by contract, or otherwise.

1.4. "Chargeback" means contacting bank or credit / debit card provider and rejecting, cancelling, or contesting the charge of any amount payable in connection with use of the Service.

1.5. "Resultant Data" are data related to your use of the Service, including statistical and performance data related to operation of the Service.

1.6. "Service" means the content and services provided through calculio.com (the "Website") or through mobile version of the service available for download in the Apple App Store and Android Google Play (the "App") in particular the mathematical education service.

1.7. "Subscription" is any of the paid Subscription plans offered by Calculio as described on the Website or in the App. The Subscription represents the current status of the user account determining:

1. the number of remaining credits available to the user under the selected Subscription plan
2. the number of remaining photo inputs available to the user under the selected Subscription plan
3. the expiry date of the selected Subscription plan.

1.8. "Third-Party Materials" are materials, documents, data, products, services, or software that were not created by Calculio, including open-source software.

1.9. "Your Data" are data, instructions, materials, and other content that is provided by you, or that Calculio receives by or through the Service. Your Data does not include Resultant Data.

2.1. Use. Subject and conditioned on your compliance with the Agreement, Calculio hereby grants you a non-exclusive, non-transferable right to use the Service during the term of the Agreement.

2.2. Reservation of Rights. Nothing in the Agreement grants any license or other right to any intellectual property rights in or relating to the Service, or Third-Party Materials. All rights to the Service and the Third-Party Materials are and will remain with Calculio and the respective rights holders. You do not acquire any rights except as expressly set forth in Section 2.1 or in the applicable third-party license terms. By entering into the Agreement or, as the case may be, by creation of such data, you assign to Calculio all rights relating to the Resultant Data. Calculio reserve the right to make changes to the Service that Calculio deems necessary or useful to comply with applicable law, enhance the quality of Service, cost efficiency or performance.

2.3. Suspension or Termination. Calculio may suspend, terminate, or otherwise deny your access to or use of the Service, if:

1. Calculio receives a judicial or governmental request or order that requires Calculio to do so, or if Calculio becomes aware that such an authority has enacted a new, or modified an existing, law, regulation, interpretation or decision that would make Calculio performance of the Agreement unlawful or otherwise illegal, or
2. you have failed to comply with the Agreement or used the Service beyond the scope of rights granted or for a purpose not authorized under the Agreement; or that you are or have been involved in fraudulent or unlawful activities, or
3. you do not pay the fees when due, or Calculio receives a Chargeback.

3.1. Use Restrictions. You may not, and may not permit any other person to, access or use the Service except as expressly permitted by the Agreement and, in case of Third-Party Materials, the applicable third-party license terms. You shall not in particular, but not exclusively:

1. make the Service available to anyone other than as permitted by your Subscription,
2. rent, sublicense, re-sell, assign, distribute, time share, or similarly exploit the Service,
3. reverse engineer, copy, modify, adapt, or hack the Service,
4. access the Service, the Website, the App, or Calculio confidential Information to build a competitive product or service; or
5. allow Subscription to be shared or used by more users than is permitted by your Subscription, bypass or breach any security used by the Service or access or use the Service other than through the use of your own then valid access credentials,
6. upload, transmit, or otherwise provide to or through the Service, any information or materials that is unsolicited advertisement or content (i.e., “spam"), unlawful or contains or activates any harmful code (software, hardware, or other technology, including malware, the purpose or effect of which is to permit unauthorized access to, disrupt or otherwise harm any computer, software, hardware, or network; or prevent any other user from accessing or using the Service),
7. damage, disable, interfere with, or otherwise harm the Service, or Calculio’s provision of Service, or
8. access or use the Service in manner or for purpose that infringes any intellectual property right or other right of any third party or that violates any applicable law
9. use the Service through more than one user account.

3.2. Home education. Furthermore, you agree to use the Service solely for home education (reviewing material from school lessons, deepening knowledge, personal preparation for written entrance exams, etc.) as it is strictly prohibited to use the Services as an illegal means of the user in the context of school lessons, examinations, entrance exams, etc.

3.3. Sanctions. Service is offered to users who are not a target of any sanction’s regime, and do not reside in, nor will access the Service from a country from which such access is prohibited under any applicable sanction’s regime or export control laws. By using the Service, you represent that you meet the foregoing requirements. If you do not meet these requirements, you must not access or use the Service. Calculio reserves the right to limit the availability of the Service to any person, entity, geographic area, or jurisdiction at any time.

4.1. Corrective Action. If you become aware of any activity prohibited by the Terms, you must immediately take all reasonable measures within your respective control that are necessary to stop the activity and to mitigate its effects (including by discontinuing and preventing any unauthorized access to the Service and notify Calculio of any such actual or threatened activity.

4.2. User Responsibility. You are solely responsible for:

1. meeting the following recommended requirement for the use of the Service, otherwise the Service may not function properly:
   1. minimum internet connection speed - at least 1Mb/s
   2. minimum requirements for CPU power 2x 1 GHz, 2 GB RAM
   3. updated versions of the following browsers are required for the Website use of the Service: Google Chrome, Firefox, Safari, Opera, Microsoft Edge
   4. the use of the Service in the App is available through Android Google Play for Android 7.0 and higher, and on Apple App Store for iOS version 15 and higher
   5. camera with a resolution of at least 5 Mpx
   6. minimum display resolution 320x480 px
2. legality of processing of Your Data. In particular, you are responsible for ensuring that you are entitled to provide Calculio with all Your Data and that Calculio use and processing of Your Data for the purpose of providing the Service does not infringe any third-party rights, in particular intellectual property rights or privacy rights or obligations under any law or regulation. You are required to inform persons whose personal and other data you transfer to Us of such transfer, and to obtain consent to such transfer of personal data where necessary,
3. use, security, and protection of access details from unauthorized use; and
4. all access to and use of the Service through your systems or the access details, including all results obtained from such access or use and all conclusions, decisions and actions based thereon.

5.1. Subscription. If you wish to purchase Subscription, you shall use the order form available on the Website or in the App and submit it by pressing the pay button. Subscription fees are for the time period specified for each Subscription plan and begin on the Subscription start date (the day when the Subscription fee is paid). Subscriptions plans are sold with a number of credits for use, number of uses of specific features or functionalities (such as use of photo inputs), specified duration of the Subscription and other factors according to the price list. You may buy another Subscription on the Website or in the App, however the credits and number of pre-paid uses for features or functionalities which were not used yet shall not be transferred (added) to the next Subscription, and are forfeited without refund. Therefore, make sure, that you use them all before buying the next Subscription, even by using less automated version of the Service (i.e. if you run out of calculations from photo inputs, you may still have credits for type-in calculations through the editor).

5.2. Credit. Credit is the basic unit for usage of specified features. A mathematical expression or equation is charged with 1 credit, however, for example word problems (or other specific features) consume more credits according to the current price list. Some features (such as photo inputs) are not based on the credit use.

5.3. Unsolved math problems. The Service covers and can solve math problems which are currently listed at Covered math. In the event that the Service is unable to solve the covered math problem, no credit will be deducted from the Subscription. The exception is word problems, where a reduced number of credits corresponding to the cost of an LLM (large language model) analysis of the problem will be deducted from the Subscription.

5.4. Termination of Subscription. The Subscription selected by the user shall terminate upon fulfillment of one of the following conditions, whichever occurs first:

1. the Subscription expires, i.e. the time period defined when purchasing a particular Subscription plan expires (counted from the Subscription start date)
2. the user has used up the maximum number of credits defined by the selected Subscription plan
3. the user's account is cancelled at the user's own request
4. the user purchases a new Subscription.

5.5. Fees. You shall pay Calculio the fees in accordance with the currently effective price list available on the Website or in the App immediately after the order has been submitted. The prices for Website order and for App orders may differ, taking into account the fees of the respective mobile platform providers. Calculio may change the price list, institute new fees, or increase the fees for next Subscription you buy. The obligation to pay the fees is not tied to your actual use of the Service. In the event that you do not use the Service or exhaust all features, functionalities or credits within the given period, this shall not affect Calculio right to payment of the fees in full. Unless expressly set forth herein, the fees are non-cancelable and non-refundable.

5.6. Taxes. All fees and other amounts payable by you are final and no taxes and similar assessments shall be invoiced by Calculio to you. Without limiting the foregoing, you are responsible for sales, use, and excise taxes, and any other similar taxes, duties, and charges of any kind imposed by any federal, state, or local governmental or regulatory authority on any amounts payable by you hereunder.

5.7. Payment. Payments can be done through the App or through the Website:

1. in the App you shall make all payments via the payment gateway of the respective mobile platform provider (Apple App Store / Android Google Play) based on their terms and conditions. The Apple App Store / Android Google Play payment gateway will issue and send you an invoice once your order is confirmed,
2. on the Website, you shall make all payments via the Comgate payment gateway. You hereby agree to terms and conditions of the Comgate services available at https://www.comgate.cz/. Payment instructions will be displayed to you in immediately after the order is submitted. Calculio will issue and send the invoice to you after the order confirmation.

5.8. Chargeback. Calculio reserves the right to immediately suspend access to the Service, without prior notice, in the event Calculio receives notice of Chargeback. Chargeback will be considered a breach of your payment obligations. Calculio may take reasonable steps to restrict your future access to our Service if Calculio believes that you have maliciously requested Chargeback.

6.1. Your Warranties. You represent and warrant to Calculio that you own the necessary rights and consents relating to Your Data so that, as received by Calculio and processed in accordance with the Agreement, they do not and will not infringe, misappropriate, or otherwise violate any intellectual property rights, or any privacy or other rights of any third party or violate any applicable law.

6.2. Inputs. The Service is a software tool that automatically generates a solution for the specified mathematical problem based on the information entered by the user. The Service generates a solution process on the basis of the information uploaded to the Service by the respective user. The relevance of the content of the Service is thus influenced by the correctness and completeness of the information entered by the user into the Service. The input for the calculation can be taken within the Service using a camera or entered on a keyboard in the Service editor. In the case of work on a desktop computer, an external mobile phone can also be used to take the input, which is paired using a special QR code generated by the Service.

Requirements for the photo inputs:

1. the photo of the math problem shall be taken sharply (without obvious blurring)
2. there shall be only one math problem in the focus area (the size of the focus area is adjusted by the user's touch)
3. the photo shall be taken in sufficient light conditions (especially contrast to the background)
4. the size of the example shall be sufficient - at least 75% of the display width
5. when photographing a handwritten example, user shall make sure that the math problem is sufficiently readable.

6.3. Word problems. The user warrants its awareness that the solution of word problems, i.e. math problem consisting mainly of word inputs and not only mathematical expressions, is influenced by a number of factors, in particular the length and structure of the text, vocabulary, clarity of wording (e.g. ambiguity of pronouns), number of mathematical steps, type of mathematical operations, abstractness of the problem, number of conditions, complexity of logical connections (time sequences, interdependencies), presence of irrelevant information, context of the problem, etc. Calculio uses a large language model (LLM) to analyze the word problems, and even though Calculio uses the best available models enriched with specific procedures, their outputs are not 100% and cannot always be relied upon as correct. The outputs of word problems, despite their high degree of correctness, serve only as qualified estimates of solutions based on the input information provided. For more information on the benefits, technical solutions or limitations, please visit the Website.

6.4. DISCLAIMER OF WARRANTIES. THE SERVICE IS PROVIDED “AS IS.” TO THE MAXIMUM EXTENT PERMITTED UNDER THE APPLICABLE LAW, CALCULIO SPECIFICALLY DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT, AND ALL WARRANTIES ARISING FROM COURSE OF DEALING, USAGE, OR TRADE PRACTICE. WITHOUT LIMITING THE FOREGOING, CALCULIO MAKES NO WARRANTY OF ANY KIND THAT THE SERVICE, OR ANY PRODUCTS OR RESULTS OF THE USE THEREOF, WILL MEET YOUR OR ANY OTHER PERSON’S REQUIREMENTS, BE AVAILABLE OR OPERATE WITHOUT INTERRUPTION, ACHIEVE ANY INTENDED RESULT, BE COMPATIBLE OR WORK WITH ANY SOFTWARE, SYSTEM, OR OTHER SERVICE, OR BE SECURE, ACCURATE, COMPLETE, OR ERROR FREE. ALL THIRD-PARTY MATERIALS ARE PROVIDED “AS IS” AND ANY REPRESENTATION OR WARRANTY OF OR CONCERNING ANY THIRD-PARTY MATERIALS IS STRICTLY BETWEEN YOU AND THE THIRD-PARTY OWNER OR DISTRIBUTOR OF THE THIRD-PARTY MATERIALS. CALCULIO HAS NO OBLIGATION OR LIABILITY FOR DAMAGE, CORRUPTION, OR RECOVERY OF YOUR DATA.

7.1. Your Indemnification. You shall indemnify, defend, and hold harmless Calculio from and against any and all loss, damage, claim, action, judgment, settlement, interest, penalty, fine, costs, or expenses, including attorneys’ fees and the costs of enforcing any right to indemnification hereunder incurred resulting from any action by a third party that arise out of or result from, or are alleged to arise out of or result from:

1. Your Data, including any processing of it by or on behalf of Calculio in accordance with the Agreement;
2. allegation of facts that, if true, would constitute your breach of any of your representations, warranties, covenants, or obligations under the Agreement; or
3. negligence or more culpable act or omission (including recklessness or willful misconduct) by you, or any third party on behalf of you, in connection with the Agreement.

7.2. Indemnification Procedure. Calculio will inform you of its entitlement for indemnification. You shall cooperate with Calculio at your cost and expense. You shall promptly assume control of the defense and shall employ counsel reasonably acceptable to Calculio to handle and defend the same, at your sole cost and expense. Calculio may participate in and observe the proceedings at its own cost and expense with counsel of its own choosing. You shall not settle any action without Calculio’s prior written consent. If you fails or refuse to assume control of the defense of such action, Calculio shall have the right, but no obligation, to defend against such action, including settling such action, in each case in such manner and on such terms as the Calculio may deem appropriate.

8.1. EXCLUSION OF DAMAGES. TO THE MAXIMUM EXTENT PERMITTED UNDER THE APPLICABLE LAW, IN NO EVENT WILL CALCULIO OR ANY OF ITS AFFILIATES, LICENSORS, SERVICE PROVIDERS, OR SUPPLIERS BE LIABLE UNDER OR IN CONNECTION WITH THE AGREEMENT OR ITS SUBJECT MATTER UNDER ANY LEGAL OR EQUITABLE THEORY, INCLUDING BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, AND OTHERWISE, FOR ANY: (a) LOSS OF PRODUCTION, USE, BUSINESS, REVENUE, OR PROFIT OR DIMINUTION IN VALUE; (b) IMPAIRMENT, INABILITY TO USE OR LOSS, INTERRUPTION, OR DELAY OF THE SERVICES; (c) LOSS, DAMAGE, CORRUPTION, OR RECOVERY OF DATA; (d) COST OF REPLACEMENT GOODS OR SERVICES; (e) LOSS OF GOODWILL OR REPUTATION; (f) CONSEQUENTIAL, INCIDENTAL, INDIRECT, EXEMPLARY, SPECIAL, ENHANCED, OR PUNITIVE DAMAGES, REGARDLESS OF WHETHER YOU WERE ADVISED OF THE POSSIBILITY OF SUCH LOSSES OR DAMAGES OR SUCH LOSSES OR DAMAGES WERE OTHERWISE FORESEEABLE, AND NOTWITHSTANDING THE FAILURE OF ANY AGREED OR OTHER REMEDY OF ITS ESSENTIAL PURPOSE.

8.2. CAP ON MONETARY LIABILITY. TO THE MAXIMUM EXTENT PERMITTED UNDER THE APPLICABLE LAW, IN NO EVENT WILL THE COLLECTIVE AGGREGATE LIABILITY OF CALCULIO AND ITS AFFILIATES, LICENSORS, SERVICE PROVIDERS, AND SUPPLIERS ARISING OUT OF OR RELATED TO THE AGREEMENT, WHETHER ARISING UNDER OR RELATED TO BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY, OR ANY OTHER LEGAL OR EQUITABLE THEORY, EXCEED 100 % THE TOTAL AMOUNTS PAID TO CALCULIO UNDER THIS AGREEMENT IN THE 12 MONTH PERIOD PRECEDING THE EVENT GIVING RISE TO THE CLAIM OR $10, WHICHEVER IS LESS. THE FOREGOING LIMITATIONS APPLY EVEN IF ANY REMEDY FAILS OF ITS ESSENTIAL PURPOSE.

9.1. Term. The Agreement is concluded for an indefinite period of time. Termination of the Agreement also means termination of any currently effective Subscription.

9.2. Termination. In addition to any other express termination right set forth in the Agreement:

1. either party may terminate the Agreement effective on written notice to the other one, if the other one materially breaches the Agreement and such breach is incapable of cure, or remains uncured 30 days after the non-breaching party provides the breaching party with written notice of such breach, and
2. Calculio may terminate the Agreement, effective on written notice, if you: (i) breach any obligations or restrictions under Sections 3 or 4, (ii) file, or have filed against you, a petition for voluntary or involuntary bankruptcy or otherwise become subject, voluntarily or involuntarily, to any proceeding under any domestic or foreign bankruptcy or insolvency law, makes or seeks to make a general assignment for the benefit of its creditors; or apply for or have appointed a receiver, trustee, custodian, or similar agent appointed by order of any court of competent jurisdiction to take charge of or sell any material portion of its property or business
3. you may terminate the Agreement by deleting your user account within the Service.

9.3. Effect. Upon termination of the Agreement, except as expressly otherwise provided herein:

1. rights and licenses granted by Calculio to you hereunder will immediately terminate,
2. Calculio may destroy and permanently erase your account and all Your Data, provided that, for clarity, this obligation does not apply to any Resultant Data,
3. you shall immediately cease all use of the Service and within 15 days, or at Calculio written request permanently erase Calculio Confidential Information from all your systems, and certify to Calculio in writing that you have complied with this obligation.

9.4. Surviving Terms. The rights and obligation of the parties in the Agreement that, by nature, should survive termination or expiration of the Agreement, will survive any expiration or termination of the Agreement.

10.1. The App can be downloaded via the Apple App Store and Android Google Play. However, these Terms only apply to the relationship between you and Calculio. They do not apply to relationships with mobile platform providers. Calculio is solely responsible for the App and its content; the mobile platform providers are not responsible for the App or its content. In the event of a conflict between a provision of the Terms and the terms of the mobile platform providers (e.g. Apple Media Services Terms and Conditions) that cannot be waived, the terms of the mobile platform providers shall apply.

10.2. If you download the App from the Apple App Store, you may only use the App on Apple-branded devices that you own or control or through accounts linked by Family Sharing to the account that downloaded the App. In doing so, you must comply with the terms and conditions set out in the Apple Media Services Terms and Conditions. If you download the App from Android Google Play, you can only use it on Android devices.

10.3. If Calculio agrees to provide you with any support and maintenance for the App, it will only be provided by Calculio. You and Calculio jointly agree that the mobile platform providers have no obligation to provide any support and maintenance services in relation to the App. To the extent that Calculio has not excluded the warranty, whether arising by operation of law or the Terms, the warranty is provided to you only by Calculio. If any warranty is breached, you may contact the mobile platform providers, which may refund the fees (if paid by you). However, the mobile platform providers shall have no obligation to settle any warranty claims or other claims, injury, liability, damages, costs or other expenses related to a breach of warranty; all of which shall be the sole responsibility of Calculio. Calculio, and not the mobile platform providers, shall be solely responsible for settling your claims related to the App and/or use of the Service, including, without limitation, claims arising from product liability, defective products, damages or failure to comply with legal requirements, whether relating to personal data, consumer rights or any other similar area, including the HealthKit and HomeKit legal framework.

10.4. Should a third party claim that the App infringes its intellectual property rights, Calculio shall be solely responsible, together, for the investigation, defense, handling and settlement of such claim.

10.5. You represent that you are not located in a country that is subject to a U.S. government embargo or that has been designated by the U.S. government as a "terrorist supporting" country; nor are you listed on any list of "prohibited or restricted parties" maintained by the U.S. government.

10.6. The mobile platform providers and their affiliates are third party beneficiaries of the Terms and have the right to enforce the Terms against you

11.1. The personal data controller (or under US privacy laws „Business“) is the company Calculio s.r.o. with its registered office at Martinská 1442, Kolín V, 280 02 Kolín, reg. ID.: 17887577, VAT: CZ17887577, registered in the Commercial Register at the Municipal Court in Prague, Section C, Insert 378240 (“Calculio”). The contact email address of Calculio is info@calculio.com, phone number: +420 724 704 209.

11.2. Calculio processes this Personal Data for the reasons set out below:

1. username and email for the purpose of contract performance and fulfilling legal duties - user registration and electronic communication
2. name and address (street, city, postal code, state) for the purpose of contract performance and fulfilling legal duties - when purchasing a subscription within the application
3. when using internet application: cookies, IP address. e-tag and device fingerprint hash only for registered users based on a legitimate interest for the purpose of preventing the unlawful creation of multiple Users by a single natural person
4. when using mobile application: deviceID.

11.3. The personal data referred to in Article 11.2. shall be processed by Calculio for the duration of the contractual relationship and for a further 10 years from its termination (for reasons of legal obligations, especially when required by tax and accounting laws).

11.4. Calculio uses a third party for analytical purposes of website traffic - Google Ireland Ltd., Google Building Gordon House, 4 Barrow St. Dublin, D04 E5W5, Ireland.

11.5. User Rights:

1. the right of access to personal data according to the Article 15 GDPR (or any other alternative of such right according to relevant US laws)
2. the right to rectification of personal data pursuant to Article 16 GDPR (or any other alternative of such right according to relevant US laws)
3. the right to erasure of personal data pursuant to cl. 17 GDPR (or any other alternative of such right according to relevant US laws)
4. the right to object to processing pursuant to Article 21 GDPR (or any other alternative of such right according to relevant US laws)
5. the right to data portability pursuant to cl. 20 GDPR (or any other alternative of such right according to relevant US laws)
6. the right to withdraw consent to processing in writing or electronically to the address or e-mail of Calculio.

11.6. The user has the right to lodge a complaint with the supervisory authority in the case, that he or she believes that his/her rights to protection of personal data has been violated.

11.7. Calculio declares that Calculio has taken all appropriate technical and organizational measures to secure personal data.

11.8. Calculio works with Cookies (small text files sent by the website) on the website which the website stores in the browser (or in device) and which helps Calculio with identification of the user. Calculio uses these cookies:

1. Technical cookies – for proper functions of the website.
2. Analytical cookies - help to analyze the behavior of visitors to the site and improve the service. Saving of such cookies is subject to the consent of the user.

11.9. Calculio does not sell personal data or uses personal data for automated decision-making, including profiling.

12.1. Entire Agreement. Agreement constitutes our sole and entire agreement with respect to its subject matter and supersedes all prior and contemporaneous agreements, with respect to such subject matter. In the event of a conflict between the documents constituting the Agreement, the documents shall apply in the following order: (i) Terms of Service, (iii) remaining documents in order of their appearance in the Terms.

12.2. Assignment. Neither party may assign or otherwise transfer any of its rights or obligations under the Agreement, without prior written consent of the other party, provided that Calculio may assign the Agreement as a whole without your prior written consent to any Calculio Affiliate.

12.3. Force Majeure. In no event will Calculio be liable for any failure or delay in performance of the Agreement, when and to the extent such failure or delay is caused by any circumstances beyond Calculio reasonable control, including acts of God, flood, fire, earthquake, war, terrorism, cyber-attack (including DDoS), invasion, embargoes, strikes, passage of law, including imposing an embargo, export or import restriction, quota, or other restriction or prohibition or any complete or partial government shutdown, or national or regional shortage of adequate power or telecommunications or transportation. Calculio may terminate the Agreement if a force majeure event continues for a period of 30 days or more.

12.4. Changes. Calculio may amend the Terms at its sole discretion. The most up to date version is always on the Website and in the App. Calculio will also notify you about such the changes on the Website and in the App. All changes shall take effect on the date specified. However, if you are a Subscription user, the Terms currently in force shall apply to you for the reminder of your Subscription, unless the change is necessary for regulatory reasons or it is beneficial to you (e.g. introduction of new functionalities). In such cases, the changes take effect on the date specified. Your continued use of the Service after the effective date shall mean that you accept and agree to the changes.

12.5. Notices. The requirement of written form is met if the electronic text with a simple electronic signature is delivered to the e-mail address of the other Party, or by other electronic means agreed by the parties.

12.6. Severability. If any term or provision of the Terms is invalid, illegal, or unenforceable in any jurisdiction, such invalidity, illegality, or unenforceability shall not affect any other term or provision. Upon such determination that any term or other provision is invalid, illegal, or unenforceable, parties shall negotiate in good faith to modify the Terms so as to effect the original intent to the greatest extent possible.

12.7. Governing Law; Submission to Jurisdiction. Agreement is governed by and construed in accordance with the internal laws of Czech Republic without giving effect to any choice or conflict of law provision. Any legal suit, action, or proceeding arising out of or related to the Agreement will be instituted exclusively in the courts of the Czech Republic, and each of us irrevocably submits to the exclusive jurisdiction of such courts in any such suit, action, or proceeding.