Freemium App Model

Model Description

  • The app is initially free to try and then transitions into a freemium mode.
  • In this mode, you can continue solving problems for free, but with a limited amount.
  • If you need to solve more problems at any given moment, you can purchase an appropriate package anytime.
Currently, you get free access to: 1 step-by-step solution per day, 2 photo-based problem scans per day and 10 problems without step-by-step solutions per day.
  • These limits do not roll over (i.e., if you don’t use them on a given day, they do not carry over to the next day). They may change over time and are not guaranteed.
  • This does not apply to premium topics (currently equations and inequalities with parameters, as well as word problems).
Sample math problems in Calculio App