# caQtDM vs BlueHHT

The clearest difference is update cadence: caQtDM at every 5 months against BlueHHT's every 12 months. BlueHHT's advantage is iOS requirement (13.0 vs 16.0). 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.

caQtDM ships an update every 5 months, BlueHHT every 12 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | caQtDM | BlueHHT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 12 months |
| Size | 68 MB | 15 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Helge Brands](https://appshunter.io/developer/922076961) | [Dohmann Engineering Services](https://appshunter.io/developer/401682475) |

## What reviewers say

### caQtDM

[App page](https://appshunter.io/ios/app/caqtdm/id922076962)

**Features:** macOS Compatibility

**In-app purchases:** none


### BlueHHT

[App page](https://appshunter.io/ios/app/bluehht/id1551056680)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is caQtDM free?

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

### Is BlueHHT free?

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

### Do caQtDM or BlueHHT have ads?

Neither caQtDM nor BlueHHT shows ads.

### Which is updated more often, caQtDM or BlueHHT?

caQtDM ships an update every 5 months, and BlueHHT every 12 months. Most recently, caQtDM was updated on October 12, 2026 and BlueHHT on October 2, 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.*