Math practice · reimagined
Integral
Turn Integral into a fight you actually want to win. Every problem is an attack — solve it faster than your opponent and you land the hit.
Ages 4–99+ · no download · plays in your browser · 23 languages
How it works
Integral
Pick a fighter, choose Integral, and trust your numbers. The faster and cleaner you solve, the harder you hit — from gentle early grades all the way to Olympic-level challenges.
Integration is differentiation in reverse — it adds up tiny slices to find the AREA under a curve.
The power rule flips: ∫axⁿ dx = a·xⁿ⁺¹/(n+1) — raise the exponent by one, then divide by the new exponent. For ∫2x dx from 0 to 3: that's x² evaluated at 3 → 9.
Integrate, evaluate at the top limit (the bottom is 0 here), and type the area.
More math to master
— Quick answers —
Integral: the short FAQ
- Is Integral free to play?
- Yes. Integral is free to play right in your browser — the whole curriculum, no download, no signup. Paid plans later unlock the full fighter roster, every stage and saved progress.
- Who is Integral for?
- Anyone from 4 to 99+. The early grades stay gentle for beginners, while the higher tiers will make even the confident sweat.
- Do I need to download anything to play Integral?
- Nope. Integral runs in any browser, on a laptop, tablet or phone.
- Can Integral be used in the classroom?
- Absolutely. Teachers run Integral with a whole class and track who's improving — see the schools plan for per-student pricing and a teacher dashboard.