# TheoMeter vs TrueDetect Device Test

The clearest difference is iOS requirement: TrueDetect Device Test at 15.0 against TheoMeter's 17.0. 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.

## The numbers

| Metric | TheoMeter | TrueDetect Device Test |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Weekly |
| Size | 2 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Frankie Wellman](https://appshunter.io/developer/6780719441) | [AMIR AKBAR](https://appshunter.io/developer/6790856040) |

## What reviewers say

### TheoMeter

[App page](https://appshunter.io/ios/app/theometer/id6790203603)

**Features:** macOS Compatibility

**In-app purchases:** none


### TrueDetect Device Test

[App page](https://appshunter.io/ios/app/truedetect-device-test/id6799417064)

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

**In-app purchases:** none


## Frequently asked questions

### Is TheoMeter free?

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

### Is TrueDetect Device Test free?

TrueDetect Device Test is free to download, with no in-app purchases.

### Do TheoMeter or TrueDetect Device Test have ads?

Neither TheoMeter nor TrueDetect Device Test shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*