# MDA831 Dynamic vs TrueDetect Device Test

The clearest difference is update cadence: TrueDetect Device Test at weekly against MDA831 Dynamic's every 2 months. MDA831 Dynamic's advantage is iOS requirement (12.0 vs 15.0). 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.

MDA831 Dynamic ships an update every 2 months, TrueDetect Device Test weekly. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | MDA831 Dynamic | TrueDetect Device Test |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 4 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [杏生 卢](https://appshunter.io/developer/1094592555) | [AMIR AKBAR](https://appshunter.io/developer/6790856040) |

## What reviewers say

### MDA831 Dynamic

[App page](https://appshunter.io/ios/app/mda831-dynamic/id1598691124)

**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 MDA831 Dynamic free?

MDA831 Dynamic 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 MDA831 Dynamic or TrueDetect Device Test have ads?

Neither MDA831 Dynamic nor TrueDetect Device Test shows ads.

### Which is updated more often, MDA831 Dynamic or TrueDetect Device Test?

MDA831 Dynamic ships an update every 2 months, and TrueDetect Device Test weekly. Most recently, MDA831 Dynamic was updated on October 4, 2026 and TrueDetect Device Test on October 6, 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.*