# RMCMobile vs Function Fitter

The clearest difference is update cadence: Function Fitter at monthly against RMCMobile's every 24 months. 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.

RMCMobile ships an update every 24 months, Function Fitter monthly. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | RMCMobile | Function Fitter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Monthly** |
| Size | 2 MB | 4 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DELTA COMPUTER SYSTEMS, Inc](https://appshunter.io/developer/1518852544) | [29Apps LLC](https://appshunter.io/developer/1817021563) |

## What reviewers say

### RMCMobile

[App page](https://appshunter.io/ios/app/rmcmobile/id1518852545)

**In-app purchases:** none


### Function Fitter

[App page](https://appshunter.io/ios/app/function-fitter/id6748284369)

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

**In-app purchases:** none


## Frequently asked questions

### Is RMCMobile free?

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

### Is Function Fitter free?

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

### Do RMCMobile or Function Fitter have ads?

Neither RMCMobile nor Function Fitter shows ads.

### Which is updated more often, RMCMobile or Function Fitter?

RMCMobile ships an update every 24 months, and Function Fitter monthly. Most recently, RMCMobile was updated on October 10, 2026 and Function Fitter on October 11, 2026.

---

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