# YN BMS vs YDEBMS

The clearest difference is update cadence: YDEBMS at every 2 weeks against YN BMS's every 6 weeks. YN BMS's advantage is iOS requirement (13.0 vs 17.0). 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.

YN BMS ships an update every 6 weeks, YDEBMS every 2 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | YN BMS | YDEBMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Size | 24 MB | 2 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [海妮 席](https://appshunter.io/developer/1819811421) | [Shenzhen Yundier Technology Co., Ltd](https://appshunter.io/developer/6811608002) |

## What reviewers say

### YN BMS

[App page](https://appshunter.io/ios/app/yn-bms/id6747100018)

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

**In-app purchases:** none


### YDEBMS

[App page](https://appshunter.io/ios/app/ydebms/id6811608000)

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

**In-app purchases:** none


## Frequently asked questions

### Is YN BMS free?

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

### Is YDEBMS free?

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

### Do YN BMS or YDEBMS have ads?

Neither YN BMS nor YDEBMS shows ads.

### Which is updated more often, YN BMS or YDEBMS?

YN BMS ships an update every 6 weeks, and YDEBMS every 2 weeks. Most recently, YN BMS was updated on October 28, 2026 and YDEBMS on October 31, 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.*