# GMtech vs BTHome Sensors

The clearest difference is price: GMtech at Free against BTHome Sensors's $3.99. GMtech also leads on iOS requirement (12.0 vs 16.4). BTHome Sensors's advantage is update cadence (every 3 weeks vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

GMtech is free to download; BTHome Sensors costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GMtech ships an update every 3 months, BTHome Sensors every 3 weeks. The most recent releases landed on October 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | GMtech | BTHome Sensors |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 37 MB | 70 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [GM Outdoor](https://appshunter.io/developer/1837853910) | [MICHAL KOVAL](https://appshunter.io/developer/1833328260) |

## What reviewers say

### GMtech

[App page](https://appshunter.io/ios/app/gmtech/id6752009314)

**Features:** macOS Compatibility

**In-app purchases:** none


### BTHome Sensors

[App page](https://appshunter.io/ios/app/bthome-sensors/id6758900006)

**In-app purchases:** none


## Frequently asked questions

### Is GMtech free?

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

### Is BTHome Sensors free?

BTHome Sensors costs $3.99, with no in-app purchases.

### Do GMtech or BTHome Sensors have ads?

Neither GMtech nor BTHome Sensors shows ads.

### Which is updated more often, GMtech or BTHome Sensors?

GMtech ships an update every 3 months, and BTHome Sensors every 3 weeks. Most recently, GMtech was updated on October 9, 2026 and BTHome Sensors 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.*