# MF London vs RTMB

The clearest difference is update cadence: RTMB at every 3 weeks against MF London's every 5 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.

MF London ships an update every 5 months, RTMB every 3 weeks. The most recent releases landed on October 8, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | MF London | RTMB |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 35 MB | 41 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Military Fitness International LTD](https://appshunter.io/developer/1463091906) | [Toby Challis](https://appshunter.io/developer/1846961528) |

## What reviewers say

### MF London

[App page](https://appshunter.io/ios/app/mf-london/id6738142061)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### RTMB

[App page](https://appshunter.io/ios/app/rtmb/id6761845733)

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

**In-app purchases:** none


## Frequently asked questions

### Is MF London free?

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

### Is RTMB free?

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

### Do MF London or RTMB have ads?

Neither MF London nor RTMB shows ads.

### Which is updated more often, MF London or RTMB?

MF London ships an update every 5 months, and RTMB every 3 weeks. Most recently, MF London was updated on October 8, 2026 and RTMB on September 27, 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.*