TauState isn't a worksheet with a timer. It's a complete training system: a mode for every mood, a lab for every configuration, and statistics that prove the work pays off.
Heads-up: the app's interface is currently German-only. More languages are on the roadmap.
Play without end — until you stop.
A fixed number of problems, start to finish.
The countdown is running. Do as much as you can.
A time limit per problem. No catching your breath.
A short limit, with bonus time for correct answers.
Memorise the problems, then answer from memory.
Three lives. Every mistake counts.
Build your own mode in the mode builder.
The Lab lets you shape every detail — operators, number ranges, modifiers. Or just press play and let adaptive difficulty meet you where you are.
Boss problems at the end for extra XP, Ghost Mode makes the task vanish, Mixed Keypad shuffles the keys, Upside-down flips everything 180° — or let chance pull 1–3 modifiers every round.
Accuracy, speed, stars and streaks — rendered in calm, readable charts. A weekly recap and an activity heatmap show the work paying off.
A daily challenge, streaks worth protecting, and a heatmap that fills in as you practise — gentle structure that turns calculation into a habit you keep.
Forty-plus operators across four worlds: basic arithmetic, advanced math, number theory and number systems. Start gentle — there's always another step up.
Addition, subtraction, multiplication, division — the core where speed is built.
Powers, roots, logarithms, sine & friends, modulo, percentages, fractions, factorials, absolute values.
Primes, divisibility, digit sums, gcd & lcm, Fibonacci, square numbers.
Binary, octal, hexadecimal, Roman, base-4, base-12 — including conversion and arithmetic inside the system.
Just speak your answers — recognition runs entirely on the device, offline.
The app senses where you are and keeps you right at the edge of growth.
Operators, ranges, modifiers — build and save any training configuration.
A fresh challenge every day — and a streak you won't want to break.
Six ranks from novice to professor. Every correct answer pays in.
Dozens of achievements across milestones, combos, streaks and mastery.
Ten curated colour worlds, from amethyst to midnight — plus sound themes and haptics.
Your complete history as CSV or JSON — your data belongs to you.
Free on TestFlight. iPhone and iPad. Private by design.
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