# Royal Conversion Battery vs TrueDetect Device Test

The clearest difference is update cadence: TrueDetect Device Test at weekly against Royal Conversion Battery's every 12 months. Royal Conversion Battery'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.

Royal Conversion Battery ships an update every 12 months, TrueDetect Device Test weekly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Royal Conversion Battery | TrueDetect Device Test |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Size | 43 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sterling Power](https://appshunter.io/developer/1639822244) | [AMIR AKBAR](https://appshunter.io/developer/6790856040) |

## What reviewers say

### Royal Conversion Battery

[App page](https://appshunter.io/ios/app/royal-conversion-battery/id6740916550)

**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 Royal Conversion Battery free?

Royal Conversion Battery 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 Royal Conversion Battery or TrueDetect Device Test have ads?

Neither Royal Conversion Battery nor TrueDetect Device Test shows ads.

### Which is updated more often, Royal Conversion Battery or TrueDetect Device Test?

Royal Conversion Battery ships an update every 12 months, and TrueDetect Device Test weekly. Most recently, Royal Conversion Battery was updated on October 28, 2026 and TrueDetect Device Test on October 24, 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.*