# M3softwareFit vs Sanna Fo

The clearest difference is in-app purchases: M3softwareFit at none against Sanna Fo's 5. M3softwareFit also leads on ads (none vs shown) and update cadence (every 10 days vs every 2 months). Sanna Fo's advantage is iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Sanna Fo sells 5 in-app purchases, starting at $11.99 per month. M3softwareFit asks for nothing beyond the download.

M3softwareFit ships an update every 10 days, Sanna Fo every 2 months. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | M3softwareFit | Sanna Fo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 2 months |
| Size | 49 MB | 90 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [M3Software](https://appshunter.io/developer/520851916) | [Susanna Jakobsson AB](https://appshunter.io/developer/1684793935) |

## What reviewers say

### M3softwareFit

[App page](https://appshunter.io/ios/app/m3softwarefit-admin/id838805033)

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

**In-app purchases:** none


### Sanna Fo

[App page](https://appshunter.io/ios/app/sanna-fo/id6448478668)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Breathwork månad | $11.99 | per month |
| PLAY | $19.00 | per month |
| Breathwork Membership | $22.99 | per month |
| Qigong Membership | $24.99 | per month |
| PLAY Premium | $24.99 | per month |


## Frequently asked questions

### Is M3softwareFit free?

M3softwareFit is free to download, with no in-app purchases.

### Is Sanna Fo free?

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

### Do M3softwareFit or Sanna Fo have ads?

Sanna Fo shows ads; M3softwareFit does not.

### Which is updated more often, M3softwareFit or Sanna Fo?

M3softwareFit ships an update every 10 days, and Sanna Fo every 2 months. Most recently, M3softwareFit was updated on October 10, 2026 and Sanna Fo on October 1, 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.*