Pay once · No subscription · No ads
Sharper mental math, one card at a time.
A focused flashcard app that helps you (or your kid) build real arithmetic fluency — without the freemium nags, ads, or recurring fees.
Built for daily practice, not engagement metrics.
Short sessions. Honest feedback. The basics, done well.
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The four operations
Addition, subtraction, multiplication, and division — adjustable difficulty so it grows with the learner.
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Quick sessions
A round takes a couple of minutes. Easy to fit between school pickup and dinner.
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Real progress
Track accuracy and speed over time. No streaks designed to manipulate — just the data.
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Private by default
Your data stays on your device. No accounts required, no tracking, no ads — see the privacy page.
A look inside.
Clean, distraction-free practice that respects your time.
One price. Yours forever.
$2.99 · one-timeNo subscription. No in-app upsells. No ads. Buy it once, own it.