Space learning ✦ for curious kids
Light up the sky, one star at a time
Cosmos turns astronomy into an adventure for children aged 8–13. Pick a space topic, read the illustrated slides, then play a friendly quiz. Every answer lights a star in your own growing constellation.
Now available on iOS & Android
Eight skies to explore
A whole universe of topics
From the planets next door to black holes and galaxies — every topic is a new adventure, written in plain language for young astronomers.
How it works
Read, play, collect stars
Pick a topic
Choose a sky to explore. Every topic opens with short, illustrated slides — one idea per screen, read aloud on request.
Take the quiz
Friendly questions with a simple explanation for every answer. “I don’t know yet” is always an option — trying counts.
Light your sky
Points become stars, collected on a constellation that grows as your child learns. No timers, no streaks, no pressure.
Inside the app
Calm by design
A deep-sea night sky, warm peach-gold rewards, and nothing that nags. Built to feel gentle at bedtime.
Made for parents to trust
Safe, calm and ad-free
No child sign-in
Children never register and never enter personal information. There is nothing in the child experience for a child to type.
Parental gate
Settings, the optional account, and every route into a purchase sit behind a simple grown-up gate.
No ads or tracking
No ad networks, no behavioural tracking, ever. No links out, no chat. No analytics anywhere a child goes — only in the grown-ups’ area, behind the parental gate.
Works offline
All slides and questions ship inside the app. A connection is only needed for optional backup and purchases.
Optional backup
A parent can sign in — behind the gate — to back up a child’s progress so it survives a lost or replaced device.
Kind about mistakes
No timers, no streaks, no red crosses. A wrong pick is shown warmly beside the right one, with an explanation.
Two ways to unlock, both bought by a grown-up
Cosmos is unlocked by a single purchase, made behind a parental gate. Both options open the same thing — every illustrated slide and all 243 questions across all 8 topics:
- Monthly — $3.99 a month, opening with a 3-day free trial. It renews monthly until cancelled, and you can cancel any time in your store account.
- Lifetime — $14.99 once. Nothing renews and there is nothing to cancel.
Prices are shown in your local currency in the app before you confirm anything.