# RSiAJP Lite vs Carmyth

The clearest difference is device support: RSiAJP Lite at 4 against Carmyth's 2. Carmyth's advantage is iOS requirement (9.0 vs 14.0). 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.

RSiAJP Lite ships an update every 2 months, Carmyth every 6 weeks. The most recent releases landed on September 10, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | RSiAJP Lite | Carmyth |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 33 MB | 25 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grenat](https://appshunter.io/developer/1234725484) | [Shanghai Ruitong Automation Technology Co., Ltd.](https://appshunter.io/developer/1604296871) |

## What reviewers say

### RSiAJP Lite

[App page](https://appshunter.io/ios/app/rsiajp-lite/id1240448529)

**Features:** Vision Pro support

**In-app purchases:** none


### Carmyth

[App page](https://appshunter.io/ios/app/carmyth/id1604296869)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RSiAJP Lite free?

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

### Is Carmyth free?

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

### Do RSiAJP Lite or Carmyth have ads?

Neither RSiAJP Lite nor Carmyth shows ads.

### Which is updated more often, RSiAJP Lite or Carmyth?

RSiAJP Lite ships an update every 2 months, and Carmyth every 6 weeks. Most recently, RSiAJP Lite was updated on September 10, 2026 and Carmyth on September 19, 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.*