# BitBit vs Kosmos Centro Studi

The clearest difference is in-app purchases: Kosmos Centro Studi at none against BitBit's 3. Kosmos Centro Studi also leads on device support (3 vs 1) and iOS requirement (15.5 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. BitBit sells 3 in-app purchases, starting at $2.99 per 7 days. Kosmos Centro Studi asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 13, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | BitBit | Kosmos Centro Studi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 5 MB | 53 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dimitri Giani](https://appshunter.io/developer/288361596) | [BluCloud Srl Semplificata](https://appshunter.io/developer/914061639) |

## What reviewers say

### BitBit

[App page](https://appshunter.io/ios/app/bitbit-learn-app-development/id6477713212)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weeks Subscription | $2.99 | per 7 days |
| Month Subscription | $4.99 | per month |
| Year Subscription | $11.99 | per year |


### Kosmos Centro Studi

[App page](https://appshunter.io/ios/app/kosmos-centro-studi/id6740697965)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BitBit free?

BitBit is free to download, with in-app purchases available.

### Is Kosmos Centro Studi free?

Kosmos Centro Studi is free to download, with no in-app purchases.

### Do BitBit or Kosmos Centro Studi have ads?

Neither BitBit nor Kosmos Centro Studi shows ads.

### Which is updated more often, BitBit or Kosmos Centro Studi?

BitBit ships an update every 3 weeks, and Kosmos Centro Studi every 3 weeks. Most recently, BitBit was updated on October 13, 2026 and Kosmos Centro Studi on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*