Brain training · iPhone · iPad · Apple Watch

Light your sky,
a few minutes a day.

Numina retunes to you after every answer — never so easy it's boring, never so hard it stings. Seven constellations of thinking. A guide that lives on your device. And nothing that follows you anywhere.

Free to play, always. No accounts. No cloud. No tracking.

Numina home screen: seven constellations in a night sky
Seven ways of thinking

Every problem lights a star.

Each constellation has its own rating, its own place in the sky, and its own personality. Numina watches all seven and grows each at its own pace.

Embersnumber flow
The Weavemultiplying threads
Prismsparts of wholes
Riverspatterns in motion
The Keysunlocking unknowns
Mirrorslogic & reflection
Echoeswhat you hold

Daily Tune

An adaptive workout that finds the exact edge where thinking feels good, and retunes after every single answer.

Comet Run & Meteor Dash

Race the clock for bonus resonance — pressure without a failure state. Ten seconds a problem if you dare.

Deep Sky

Talk through riddles, connections, story-math and estimation with a guide that runs entirely on your device.

Echoes

Working memory. A sequence appears, disappears — then you answer from what you kept.

Deep Signal

One special puzzle each night. Double the reward, once a day.

The Observatory

Accuracy, streaks, per-constellation mastery — and how your pace has moved over months.

Deep Sky conversation with the on-device guide
Deep Sky

A guide that never leaves your phone.

Deep Sky uses Apple Intelligence where available, a private downloadable model on capable devices, or a warm built-in guide everywhere else. The puzzles, the answers and the scoring are always Numina's own — the model only talks.

Your conversations are yours. They are never sent anywhere.

Everywhere you already look

The Lock Screen. Your wrist. No unlocking.

A timed climb that never stops getting harder, on every screen you glance at during the day.

Answer from the Lock Screen.

The widget is interactive: tap a chip and the climb moves on — no Face ID, no app launch. Every problem you clear raises the level, forever.

Prefer the keypad? Tap through for the full timed climb with your solve speed tracked over time.

Lock Screen widget showing a math problem with three tappable answer chips

Quick Math on Apple Watch.

The same climb on your wrist, with a complication for your watch face. Your level and every solve sync back to your iPhone.

Apple Watch showing a math problem with four answer chips
Numina on iPad

Native on iPad.

The whole sky, side by side. Optional private iCloud sync keeps your streak in step between iPhone and iPad — through your own iCloud, never a server of ours.

Numina Complete

Everything you play is free. Complete goes deeper.

A brain trainer that hides its training behind a wall never becomes a habit. So it doesn't. Complete is a single purchase for depth and personalisation — never access.

Free

$0 forever
  • Every mode — Daily Tune, Comet Run, Meteor Dash, Deep Sky, Deep Signal
  • All seven constellations
  • Lock Screen widget & Apple Watch
  • The Observatory
  • iCloud sync

Complete

$4.99 once, owned forever
  • Two years of trends — accuracy and pace, charted
  • Custom tunes — your length, your constellations
  • Sky themes — Ember Dusk, Deep Violet, Starlight
  • And it's how the app stays free of ads, accounts and tracking
Four sky themes: Aurora, Ember Dusk, Deep Violet and Starlight
Private by design

No accounts. No cloud. No tracking.

Numina has no servers. Your progress lives on your device — or, if you choose, in your own iCloud. There are no analytics, no ads, and nothing that follows you.

Read the privacy policy →