# Thunder Cam vs RT ARM

The clearest difference is iOS requirement: Thunder Cam at 12.0 against RT ARM's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Thunder Cam ships an update every 4 months, RT ARM every 2 months. The most recent releases landed on September 15, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Thunder Cam | RT ARM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 56 MB | 30 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [THUNDER TECNOLOGIA LTDA](https://appshunter.io/developer/1733317456) | [ROMTEC SOLUCOES EM SEGURANCA E RASTREAMENTO LTDA](https://appshunter.io/developer/1875044708) |

## What reviewers say

### Thunder Cam

[App page](https://appshunter.io/ios/app/thunder-cam/id6478559687)

**Features:** macOS Compatibility

**In-app purchases:** none


### RT ARM

[App page](https://appshunter.io/ios/app/rt-arm/id6758787896)

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

**In-app purchases:** none


## Frequently asked questions

### Is Thunder Cam free?

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

### Is RT ARM free?

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

### Do Thunder Cam or RT ARM have ads?

Neither Thunder Cam nor RT ARM shows ads.

### Which is updated more often, Thunder Cam or RT ARM?

Thunder Cam ships an update every 4 months, and RT ARM every 2 months. Most recently, Thunder Cam was updated on September 15, 2026 and RT ARM on August 26, 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.*