# Japan Image vs RT ARM

The clearest difference is update cadence: RT ARM at every 2 months against Japan Image's every 16 months. Japan Image'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.

Japan Image ships an update every 16 months, RT ARM every 2 months. The most recent releases landed on September 18, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Japan Image | RT ARM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Size | 95 MB | 30 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JAPAN SECURITY SISTEMAS DE SEGURANÇA](https://appshunter.io/developer/1309145380) | [ROMTEC SOLUCOES EM SEGURANCA E RASTREAMENTO LTDA](https://appshunter.io/developer/1875044708) |

## What reviewers say

### Japan Image

[App page](https://appshunter.io/ios/app/japan-image/id1451329345)

**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 Japan Image free?

Japan Image 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 Japan Image or RT ARM have ads?

Neither Japan Image nor RT ARM shows ads.

### Which is updated more often, Japan Image or RT ARM?

Japan Image ships an update every 16 months, and RT ARM every 2 months. Most recently, Japan Image was updated on September 18, 2026 and RT ARM on August 26, 2026.

---

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