JUST Math Facts
Math facts, mastered.
One lesson a day.
Quick, focused practice in addition, subtraction, multiplication and division for kids ages 6–10 — plus collectible animal cards they can only earn by doing math.
Download on the App Store
How it works
Pick a lesson
Choose the operation, how many problems, the highest number, and an optional timer.
Build a streak
A daily goal and a new Daily Challenge every day turn practice into a habit.
Review every answer
History saves each lesson. Missed problems are shown first, with the right answer.
Built for kids
No accounts, no chat, child-directed ads only, and purchases sit behind a grown-ups gate.
Cards you earn — never buy
Each trading card teaches three real facts about an amazing animal. Cards are earned only by doing math: reach the daily goal, finish the Daily Challenge, and keep your streak going.
Free to play
Free
Every lesson, the daily goal and challenge, and the full Amphibians card set.
Card Club
A brand-new 30-card set on the 1st of every month, bonus cards, set picking, and no ads. Cancel anytime.
Single set
Prefer not to subscribe? Unlock any released set forever with a one-time purchase.
Support
Contact us
Questions, a problem, or an idea? We read every message.
Send a messageOr email justmathfacts@gmail.com. In the app, tap ⓘ then Contact Support.
How do I cancel the Card Club?
In the app, tap ⓘ, then Manage or Cancel Subscription. You can also cancel in iPhone Settings → your name → Subscriptions. Every card you've earned stays yours.
I got a new device. Where are my purchases?
Open the Card Club page in the app and tap Restore Purchases while signed in with the same Apple Account.
How do I get a refund?
Apple handles all App Store payments and refunds. Request one at reportaproblem.apple.com.
When do new card sets arrive?
A new 30-card set unlocks on the 1st of every month. The app always shows what's coming next.