# RSM vs Micad FM

The clearest difference is update cadence: Micad FM at every 5 months against RSM's every 16 months. Micad FM also leads on iOS requirement (12.0 vs 14.0). 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.

RSM ships an update every 16 months, Micad FM every 5 months. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RSM | Micad FM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 5 months** |
| Size | 83 MB | 43 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Switchstance](https://appshunter.io/developer/1357632891) | [MICAD Systems (UK) Ltd.](https://appshunter.io/developer/453209871) |

## What reviewers say

### RSM

[App page](https://appshunter.io/ios/app/rsm/id562559424)

**Features:** macOS Compatibility

**In-app purchases:** none


### Micad FM

[App page](https://appshunter.io/ios/app/micad-fm/id1544292587)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RSM free?

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

### Is Micad FM free?

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

### Do RSM or Micad FM have ads?

Neither RSM nor Micad FM shows ads.

### Which is updated more often, RSM or Micad FM?

RSM ships an update every 16 months, and Micad FM every 5 months. Most recently, RSM was updated on October 8, 2026 and Micad FM on October 7, 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.*