# STMLink vs BVUltra

The clearest difference is update cadence: BVUltra at monthly against STMLink's every 8 months. BVUltra also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

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

STMLink ships an update every 8 months, BVUltra monthly. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | STMLink | BVUltra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 8 months | **Monthly** |
| Size | 77 MB | 226 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Hangzhou Freewind Technology Co., Ltd.](https://appshunter.io/developer/964505043) | [BizConf Technology Co., Ltd.](https://appshunter.io/developer/717071959) |

## What reviewers say

### STMLink

[App page](https://appshunter.io/ios/app/stmlink/id6566185311)

**In-app purchases:** none


### BVUltra

[App page](https://appshunter.io/ios/app/bvultra/id6755456123)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is STMLink free?

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

### Is BVUltra free?

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

### Which is updated more often, STMLink or BVUltra?

STMLink ships an update every 8 months, and BVUltra monthly. Most recently, STMLink was updated on October 14, 2026 and BVUltra on October 24, 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.*