CentoZeri: Numeri Giganti
Big numbers for curious kids
Only for iPhone
Free · In‑App Purchases
iPhone
From 1 all the way to infinity: a journey to discover how big numbers can really get — with Doc Aleph, games, experiments and wonder.
How big is infinity? And a googol? Can there be a number so large you couldn't write it even using every atom in the universe?
CentoZeri is a journey from you all the way to infinity. One stop at a time, each number becomes something you can truly grasp: how much all the ants on Earth weigh, how many stars are in the Milky Way, how many ways there are to shuffle a deck of cards. Your guide is Doc Aleph.
• 26 stops, from you to Graham's number and infinity
• "Guess and reveal" games and hands-on experiments
• The stories of the mathematicians who invented these numbers
• Simple words, made for children but fascinating for grown-ups too
For parents: no advertising, no data collected, works entirely offline.
CentoZeri doesn't teach you to do sums: it makes you want to look at numbers the way you look at the night sky.
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The developer, Francesco Sarpellon, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
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Information
- Seller
- Francesco Sarpellon
- Size
- 22 MB
- Category
- Education
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later.
- iPhone
- Languages
- Italian
- Age Rating
4+
- 4+
- Made for Ages 9–11
- In-App Purchases
Yes
- Beyond the Googol $4.99
- Copyright
- © 2026 LoopSpark Studio