# Prof Billal vs Klassty

The clearest difference is update cadence: Prof Billal at every 2 weeks against Klassty's every 11 months. Prof Billal also leads on iOS requirement (11.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Prof Billal ships an update every 2 weeks, Klassty every 11 months. The most recent releases landed on September 5, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Prof Billal | Klassty |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 11 months |
| Size | 94 MB | 173 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BILLAL YAHIAOUI](https://appshunter.io/developer/1705609179) | [Klassty](https://appshunter.io/developer/1822761474) |

## What reviewers say

### Prof Billal

[App page](https://appshunter.io/ios/app/prof-billal/id6464161731)

**Features:** macOS Compatibility

**In-app purchases:** none


### Klassty

[App page](https://appshunter.io/ios/app/klassty/id6747756641)

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

**In-app purchases:** none


## Frequently asked questions

### Is Prof Billal free?

Prof Billal is free to download, with no in-app purchases.

### Is Klassty free?

Klassty is free to download, with no in-app purchases.

### Do Prof Billal or Klassty have ads?

Neither Prof Billal nor Klassty shows ads.

### Which is updated more often, Prof Billal or Klassty?

Prof Billal ships an update every 2 weeks, and Klassty every 11 months. Most recently, Prof Billal was updated on September 5, 2026 and Klassty on September 10, 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.*