# OHSA vs azBLEcontrol

The clearest difference is update cadence: azBLEcontrol at every 4 weeks against OHSA's every 4 months. azBLEcontrol also leads on iOS requirement (11.0 vs 13.0). 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.

OHSA ships an update every 4 months, azBLEcontrol every 4 weeks. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | OHSA | azBLEcontrol |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Size | 8 MB | 2 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [上海欧萨数据技术有限公司](https://appshunter.io/developer/1146355393) | [Hector Alcala](https://appshunter.io/developer/1460541676) |

## What reviewers say

### OHSA

[App page](https://appshunter.io/ios/app/ohsa/id1601786365)

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

**In-app purchases:** none


### azBLEcontrol

[App page](https://appshunter.io/ios/app/azblecontrol/id1626491792)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OHSA free?

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

### Is azBLEcontrol free?

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

### Do OHSA or azBLEcontrol have ads?

Neither OHSA nor azBLEcontrol shows ads.

### Which is updated more often, OHSA or azBLEcontrol?

OHSA ships an update every 4 months, and azBLEcontrol every 4 weeks. Most recently, OHSA was updated on October 30, 2026 and azBLEcontrol on October 27, 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.*