Math facts that stay learned.
Most drill apps stop at "got it right once." Ours keeps checking — quietly, at growing intervals, for as long as you use it — because mastery is a maintained state, not a box you check and forget. An automaticity-gated drill for anyone whose math facts aren't automatic. Free during early access.
Free during early access · No credit card required
Try it right now. No account needed.
Eight real addition facts, on the exact keypad the course drills on. Answer each one — we're watching how fast, not just whether you're right, and you'll never see a clock.
What's the answer?
0 + 3
Fact 1 of 8
Built differently, on purpose.
Three deliberate choices that shape everything else about the drill.
No countdown clock
The engine measures response time silently, the same automaticity gate that already runs on our language courses. You answer at your own pace — no visible stopwatch, no ticking clock, no race. Speed is data we watch, never pressure we apply.
Facts that stay learned
A "mastered" fact doesn’t retire — it keeps getting checked at growing intervals, for as long as you use the app. That’s the summer-slide antidote: the system notices a fact going stale and quietly brings it back before it’s actually forgotten.
No coins, no pets, no shop
No engagement economy standing between you and the facts. The reward is real fluency — and what you see is honest numbers: which facts are automatic, which are going stale, and how many minutes this week. Nothing to trade, nothing to farm.
How it works
You'll also get a progress dashboard — a fact-by-fact grid of what's automatic and what's going stale — plus an optional weekly email recap, so you always know where things stand.
Learn the strategy
Each fact family opens with a short strategy card — doubles, make-ten, counting on — so you learn a way to think about the facts, not just the answers.
Drill it on the number pad
Big touch targets, typed answers, instant feedback. A wrong answer gets one retry before the correct answer is revealed — no dead ends, no shame.
The engine holds it to instant recall
A fact only becomes "mastered" once it’s answered both correctly and fast — the same response-time gate that powers automaticity in our language courses.
It stays in rotation for life
Mastered facts don’t disappear from the queue — they resurface for a quick check at longer and longer intervals, forever, so they never quietly fade.
What we don't do
No ads. No coins. No data sold.
MasteryHelp is for learners 13 and up. We don't run ads, we don't sell your personal information, and there's no reward economy standing between you and the facts. Free during early access.
Read the details in our privacy policy.