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The Math Citizen icon: a square-root sign drawn as a tick Company31 · Math Citizen

Math puzzles that grow with you.

Pick your starting level, from Level 1 to 30, and climb all the way to Level 50, one puzzle at a time. Math Citizen learns where your edge is and keeps you on it. Every challenge is new, written on your iPhone by Apple Intelligence, and nothing ever leaves the device.

Download on the App Store Free on the App Store
  • iPhone and iPad
  • Free · no ads · no in-app purchases
  • Data not collected
Fig. 1 · Getting it

On the App Store

Math Citizen for iPhone and iPad

One app for both, free on the App Store, with no ads and nothing to buy inside it. On iPad it opens as a dashboard and plays on a full-screen stage with a big keypad. Released 26 September 2026.

Version 1.0.0 · September 2026 · iOS 26 or later · iPadOS 26 or later

Download on the App Store
Fig. 2 · How it adapts

Always at the edge of what you can do

01 · Start

Your name, your age, your level

Type a first name or nickname, give your age, and choose where to start: Beginner (Level 1), Intermediate (10), Advanced (20) or Expert (30). All of it stays on your iPhone or iPad. No birthdate, no email, no account.

02 · Measure

A skill rating for each kind of puzzle

Behind the scenes, Math Citizen keeps a rating for every kind of puzzle, in the spirit of a chess rating. A right answer lifts it, and a fast right answer lifts it more. A miss brings it down.

03 · Pick

The next puzzle, just past it

Each new puzzle is chosen at the edge of your ability: hard enough to make you think, not so hard that you give up. Fractions can climb while subtraction takes its time.

  • Aged 7 3 + 4 Starts on single-digit sums.
  • Then Up or down Every answer moves the rating, so the start soon stops mattering.
  • An adult 6 × 4 − 9 Starts on mixed operations.
Fig. 3 · Every puzzle new

Written on your device, checked by the app

The numbers

Worked out by the app itself

The numbers in every puzzle, and the right answer, are always computed by Math Citizen’s own code. The AI never decides what is correct, so an answer is never marked wrong by mistake.

The story

Told by Apple Intelligence

On the device, Apple Intelligence invents a fresh setting for each story problem, in a theme that suits your age — space, cooking, sport, animals, city-building — and writes a hint when you are stuck. It runs on your iPhone or iPad, not on a server.

Without it

Every mode still works

If Apple Intelligence is turned off, or your device cannot run it, nothing is missing from the game: Math Citizen writes the puzzles itself, and every mode plays the same.

  • Addition
  • Subtraction
  • Multiplication
  • Division
  • Missing number, like □ + 7 = 15
  • Number sequences
  • Order of operations
  • Fractions and percentages
  • Powers and roots
  • One-step and two-step equations
  • Story problems
Fig. 4 · Modes

Three ways to play

∞ Endless · 3 lives

Climb

An endless run that adapts as you go. You have three lives, and consecutive right answers build a combo multiplier for your XP.

10 Puzzles · once a day

Daily

Ten puzzles, with the same numbers for everyone playing on the device that day. Play each day to keep your daily streak, and its flame, alight.

60s As many as you can

Sprint

Sixty seconds on the clock and as many puzzles as you can solve. Your personal best is the number to beat.

Fig. 5 · Ranks and badges

From Newcomer to Legend

Every right answer earns XP — more for harder puzzles, faster answers and answers inside a combo — and XP fills your rank bar. Ten ranks stand between arriving and belonging.

  1. Newcomer
  2. Explorer
  3. Resident
  4. Citizen
  5. Councillor
  6. Mayor
  7. Governor
  8. Senator
  9. Chancellor
  10. Legend

After every run

A result screen with up to three stars, your personal bests, and confetti and a tap of haptics when it goes well.

Progress you can see

A chart of your rating over time, your accuracy for each kind of puzzle, and every badge you have earned in one grid.

A streak with a flame

Play Daily on consecutive days and the streak grows. Miss a day and it starts again.

24 badges to earn, among them

  • First Steps
  • Hot Streak 7
  • Combo x10
  • Sprint 20
  • Century
  • Fraction Friend
  • Equation Solver
  • Night Owl
  • Early Bird
  • Perfect Daily
  • Legend
Fig. 6 · On screen

What it looks like

Math Citizen home screen on iPhone: a Level 25 ring beside the player’s name, Mia, with the rank of Mayor, XP and puzzles solved, a six-day streak flame, and the three modes Climb, Daily and Sprint.
Home
A story problem in progress on iPhone, with three lives, the player’s level and XP at the top, a hint button and the number keypad.
A puzzle
The result screen after a Daily on iPhone: two of three stars, 9 of 10 solved, 342 XP earned, a level up from 24 to 25, a promotion to Mayor and the new Mayor badge.
The result
Fig. 7 · Privacy

Nothing leaves the device

  • Data Not Collected
  • No account
  • No network
  • No ads
  • No tracking
  • No analytics
  • No Game Center

Math Citizen makes no network requests at all. There is no account, no sign-in, no Game Center, no analytics, no advertising and no tracking. On the App Store its privacy label reads Data Not Collected, because that is what happens.

Your age stays on the device. It is asked once, kept on your iPhone or iPad with your progress, badges and settings in the app’s own storage, and used only to pick where you start and which story themes suit you. Apple Intelligence runs on the device too, so the stories and hints it writes are made there and go nowhere.

Deleting is simple. Settings › Reset progress wipes it all; deleting the app deletes it too. The full detail is in the Math Citizen privacy policy.

Fig. 8 · Requirements

What you need

Devices
iPhone and iPadOne app for both.
System
iOS 26 or lateriPadOS 26 or later on iPad.
Apple Intelligence
OptionalWith it, story problems and hints are written on the device. Without it, every mode still works.
Price
FreeNo ads, no in-app purchases. Rated 4+.

Before you play.

Is it really free?

Yes. No ads, no in-app purchases, nothing to subscribe to, and no “premium” version waiting behind the good puzzles.

Is it suitable for children?

Yes. It is rated 4+, has no ads, nothing to buy and no way to talk to anyone, and it collects no data from anyone of any age. The age it asks for stays on the device and only sets where the puzzles start and which story themes it picks.

What if the AI gets an answer wrong?

It cannot mark you wrong. The numbers and the right answer always come from Math Citizen’s own code; Apple Intelligence only writes the story around them and the hint. The app checks your answer, not the AI.

Do I need Apple Intelligence?

No. If it is off, or your iPhone or iPad cannot run it, Math Citizen writes the puzzles itself and every mode works the same. With it, you get story problems in fresh themes and hints written for the puzzle in front of you.

Does my progress sync between devices?

No. There is no account and no network, so progress lives on the device you play on. That is the trade for nothing ever leaving it.

How do I start again?

Settings › Reset progress wipes everything Math Citizen keeps on that device — your name, age, level, progress, badges and settings — and you begin again at the welcome screen. To change only your name, age or level, use Settings.

Fig. 9 · Support

If something is wrong, write to a person

Math Citizen is made by one small practice in Sydney. There is no ticket queue and no bot: mail reaches a person, and bug reports — a puzzle that felt unfair, a story that made no sense — are genuinely welcome.

Email
— for support, bug reports and feature requests.
Who makes it
Company31 Pty Ltd, ACN 698 697 166, Sydney, New South Wales, Australia.
Privacy
The Math Citizen privacy policy covers the app for iPhone and iPad. The website policy covers this site.