# Mergen YBBYS vs Prati

The clearest difference is in-app purchases: Mergen YBBYS at none against Prati's 4. Mergen YBBYS also leads on iOS requirement (12.0 vs 15.1). Prati's advantage is update cadence (every 2 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Prati sells 4 in-app purchases, starting at $19.99 per month. Mergen YBBYS asks for nothing beyond the download.

Mergen YBBYS ships an update every 3 months, Prati every 2 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Mergen YBBYS | Prati |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Size | 43 MB | 49 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Efe Erogu Bilisim Tek. Ins. San Tic. Ltd. Sti.](https://appshunter.io/developer/535786255) | [Prati Case](https://appshunter.io/developer/1889934916) |

## What reviewers say

### Mergen YBBYS

[App page](https://appshunter.io/ios/app/mergen-ybbys/id1534213752)

**Features:** macOS Compatibility

**In-app purchases:** none


### Prati

[App page](https://appshunter.io/ios/app/prati-case/id6761492643)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Observer | $19.99 | per month |
| VIP 1 | $139.99 | per month |
| VIP 2 | $199.99 | per 2 months |
| VIP | $299.99 | per 3 months |


## Frequently asked questions

### Is Mergen YBBYS free?

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

### Is Prati free?

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

### Do Mergen YBBYS or Prati have ads?

Neither Mergen YBBYS nor Prati shows ads.

### Which is updated more often, Mergen YBBYS or Prati?

Mergen YBBYS ships an update every 3 months, and Prati every 2 days. Most recently, Mergen YBBYS was updated on October 25, 2026 and Prati on October 28, 2026.

---

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