About this app

Race a friend head-to-head on the same iPhone. Sharpen your mental math with quick daily puzzles. Math Duel is a fast, competitive math workout. One phone, two players, split-screen. Or go solo through five modes and build a streak. WHAT YOU CAN DO • Duel a friend on one phone — split-screen, first to finish wins • Solo mode with adjustable difficulty and time limits • Endless — one mistake ends the run, chase your best streak • Time Attack — beat the clock, race against 60 or 120 seconds • Practice — your rules, no limits, ease into it • Track progress with streaks, accuracy, level-ups, and 22 medals • Daily Challenge — same 10 puzzles for everyone, share your time • Mistake Journal reveals your weak operations and drills them for you • Advanced stats with charts, trend lines, and per-operation accuracy • 6 accent colors to match your vibe DESIGNED FOR iOS 26 Built natively for iPhone with the new Liquid Glass aesthetic. Respects your system appearance — Light, Dark, or Auto. PRIVATE BY DESIGN No accounts. No ads. No tracking. Your history stays on device, with optional iCloud sync when you enable it. https://kashalot.dev/legal/math-duel-terms

Audience growth

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US rating-count history

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Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

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