Conquer Calculus
Go from "I don't get it" to "I can do this" in AP Calculus.
All 12 parts free: 207 concept cards, 943 practice problems, and 297 formulas — every problem with a full worked solution. Works offline.
Get it on the App Store Get it on Google PlayWhy you'll keep opening it
Full solutions for every problem
Not just the answer — the idea and the steps, so you know what to think next.
Graphs drawn inside the app
Crisp when you zoom in, easy on the eyes in dark mode, and computed and drawn by the app itself.
Formula reference
Every formula in one place, searchable in both directions, in English and Chinese.
Progress tracked automatically
See which ideas are still shaky and revise exactly those.
Bilingual
Every concept and every problem in English and Chinese.
Works offline
Study without a connection; pick up content updates the next time you're online.
Who it's for
Students taking AP Calculus AB or BC, students previewing or reviewing university calculus, and self-learners who want the fundamentals solid.
As a visitor your study progress stays on your device and we never receive it; sign in and it syncs to our server, so it follows you to a new phone. We also record only five basic usage data points — a random install identifier, your IP address, the country derived from it, the time you last used the app and how many requests you have made, and your device platform and app version — deleted after 90 days.