
Austin K
App doesn't work. I can't even progress to the first lesson. It lets you read the introduction (chapter 1.1) then when you try to view the lesson that comes after it makes you watch an ad. Which is fine, except once the ad is done, it bumps you back to the introduction again. You can't actually get to the first lesson. It makes your watch another adand the cycle continues.
6 people found this review helpful

Paul Hawthorne
- Flag inappropriate
- Show review history
In this day and age, when "subscription fatigue" is a thing, asking for a $15 monthly subscription for a simple app about calculus (when you can find more resources and information completely free of charge) is so delusional and trashy.
1 person found this review helpful

Dakota Carter
Hard to learn with [math processing error] everywhere. But the information is still valid, if not harder to digest.
37 people found this review helpful