# Udan HESS vs BETA BMS

The clearest difference is update cadence: BETA BMS at every 10 days against Udan HESS's every 3 months. Udan HESS's advantage is iOS requirement (13.0 vs 15.0). 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.

Udan HESS ships an update every 3 months, BETA BMS every 10 days. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Udan HESS | BETA BMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 33 MB | 16 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anhui Udan Technology Co., Ltd.](https://appshunter.io/developer/1593792520) | [海威 聂](https://appshunter.io/developer/1743976540) |

## What reviewers say

### Udan HESS

[App page](https://appshunter.io/ios/app/udan-hess/id6443758347)

**Features:** macOS Compatibility

**In-app purchases:** none


### BETA BMS

[App page](https://appshunter.io/ios/app/beta-bms/id6808483278)

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

**In-app purchases:** none


## Frequently asked questions

### Is Udan HESS free?

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

### Is BETA BMS free?

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

### Do Udan HESS or BETA BMS have ads?

Neither Udan HESS nor BETA BMS shows ads.

### Which is updated more often, Udan HESS or BETA BMS?

Udan HESS ships an update every 3 months, and BETA BMS every 10 days. Most recently, Udan HESS was updated on October 13, 2026 and BETA BMS on October 15, 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.*