# FFMI vs FFMI Calc

The clearest difference is in-app purchases: FFMI Calc at none against FFMI's 1. FFMI Calc also leads on update cadence (every 4 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FFMI sells 1 in-app purchase, starting at $0.99 per year. FFMI Calc asks for nothing beyond the download.

FFMI ships an update every 3 months, FFMI Calc every 4 weeks. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | FFMI | FFMI Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Size | 6 MB | 1 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Almudena Blanco Morett](https://appshunter.io/developer/1616421372) | [JARI TOIVIAINEN](https://appshunter.io/developer/1881425556) |

## What reviewers say

### FFMI

[App page](https://appshunter.io/ios/app/ffmi/id6673907322)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Year Access | $0.99 | per year |


### FFMI Calc

[App page](https://appshunter.io/ios/app/ffmi-calc-muscle-potential/id6760226439)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FFMI free?

FFMI is free to download, with in-app purchases available.

### Is FFMI Calc free?

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

### Do FFMI or FFMI Calc have ads?

Neither FFMI nor FFMI Calc shows ads.

### Which is updated more often, FFMI or FFMI Calc?

FFMI ships an update every 3 months, and FFMI Calc every 4 weeks. Most recently, FFMI was updated on October 3, 2026 and FFMI Calc on October 6, 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.*