# RSL FOTA vs Atmosic DevTools

The clearest difference is update cadence: Atmosic DevTools at every 2 months against RSL FOTA's every 29 months. RSL FOTA's advantage is iOS requirement (10.2 vs 14.5). 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.

RSL FOTA ships an update every 29 months, Atmosic DevTools every 2 months. The most recent releases landed on September 27, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | RSL FOTA | Atmosic DevTools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 2 months** |
| Size | 9 MB | 7 MB |
| Requires iOS | **10.2** | 14.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ON SEMICONDUCTOR CORPORATION](https://appshunter.io/developer/720086766) | [Atmosic Technologies, Inc.](https://appshunter.io/developer/1513210735) |

## What reviewers say

### RSL FOTA

[App page](https://appshunter.io/ios/app/rsl-fota/id1477779771)

**Features:** macOS Compatibility

**In-app purchases:** none


### Atmosic DevTools

[App page](https://appshunter.io/ios/app/atmosic-devtools/id1592941402)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RSL FOTA free?

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

### Is Atmosic DevTools free?

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

### Do RSL FOTA or Atmosic DevTools have ads?

Neither RSL FOTA nor Atmosic DevTools shows ads.

### Which is updated more often, RSL FOTA or Atmosic DevTools?

RSL FOTA ships an update every 29 months, and Atmosic DevTools every 2 months. Most recently, RSL FOTA was updated on September 27, 2026 and Atmosic DevTools on October 4, 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.*