Mathji Math Practice & Quizzes
Adaptive math practice
Free · Designed for iPad. Not verified for macOS.
Smart questions, a mistake notebook, and a parent dashboard — grades 1-12 including AP Calculus. Adaptive difficulty, private iCloud only, no ads, no in-app purchases.
Mathji is a math practice app for kids in grades 1-12 that nails the whole loop: generate, correct, and track.
• Smart question generation: 200+ topic types from elementary through high school (including AP Calculus and electives), generated on the fly so they never repeat.
• Adaptive difficulty: automatically adjusts to your child's performance — steps up when it's too easy, eases off when they get stuck.
• Mistake notebook + personalized review: wrong answers are saved automatically and disappear once corrected; future practice prioritizes the topics your child hasn't mastered yet.
• Parent dashboard: PIN-protected. See an all-grade learning spectrum, topic mastery, recent sessions, and exactly which questions were missed and what the child picked.
• Rewards: kids earn points they can redeem for rewards you define, keeping motivation high.
• Five languages: Traditional Chinese, English, Japanese, Korean, and Spanish — for both questions and explanations.
Privacy first: all data lives only on your child's device and in your private iCloud (CloudKit); the developer cannot access it. No ads, no in-app purchases, no external links.
Ratings & Reviews
What's new:
• All-new pet companion system: hatch, feed, and evolve a pet — and battle other players' pets
• Now on Apple Watch: practice, raise your pet, and battle right from your wrist
• Introducing Mathji Plus: subscribe to unlock more learning features
• Smarter mistake notebook: fixed mistakes come back after 1, 3 and 7 days so they really stick
• Keep your streak safe: buy shields with coins, get practice reminders from your own pet, and review your recent battles
The developer, Yu-Hui Chen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yu-Hui Chen
- Size
- 45.6 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Mathji