# CentoZeri: Numeri Giganti — Big numbers for curious kids

> Big numbers for curious kids (iPhone/iPad app by Francesco Sarpellon.)

- Source: https://appshunter.io/ios/app/centozeri-numeri-giganti/id6791565354 (this page in markdown: same URL + `.md`)
- Developer: [Francesco Sarpellon](https://appshunter.io/developer/1786820225)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 21 MB
- Languages: Italian
- Released: 2026-08-26
- Data updated: 2026-08-27
- User reviews in markdown: https://appshunter.io/ios/app/centozeri-numeri-giganti/id6791565354/reviews.md

## What is CentoZeri?

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.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Beyond the Googol | $4.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-26

No release notes.

## More apps by Francesco Sarpellon

- [MyNotify+ Water Reminder](https://appshunter.io/ios/app/mynotify-plus-water-reminder/id6758677143)
- [Gustavo, piatti e cucina](https://appshunter.io/ios/app/gustavo-piatti-e-cucina/id6784707961)
- [Lino: Fear of Flying](https://appshunter.io/ios/app/lino-fear-of-flying/id6788307076)
- [Codicino: Secret Codes](https://appshunter.io/ios/app/codicino-secret-codes/id6791566010)

All apps by Francesco Sarpellon: https://appshunter.io/developer/1786820225

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*