# StableFit PRO vs FITS

The clearest difference is update cadence: FITS at every 4 days against StableFit PRO's fortnightly. StableFit PRO's advantage is iOS requirement (14.0.0 vs 16.4). 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.

StableFit PRO ships an update fortnightly, FITS every 4 days. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | StableFit PRO | FITS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Size | 166 MB | 46 MB |
| Requires iOS | **14.0.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SavvaDev](https://appshunter.io/developer/1773169566) | [Mazur Maksym](https://appshunter.io/developer/6790679315) |

## What reviewers say

### StableFit PRO

[App page](https://appshunter.io/ios/app/stablefit-pro/id6755842178)

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

**In-app purchases:** none


### FITS

[App page](https://appshunter.io/ios/app/fits/id6790679313)

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

**In-app purchases:** none


## Frequently asked questions

### Is StableFit PRO free?

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

### Is FITS free?

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

### Do StableFit PRO or FITS have ads?

Neither StableFit PRO nor FITS shows ads.

### Which is updated more often, StableFit PRO or FITS?

StableFit PRO ships an update fortnightly, and FITS every 4 days. Most recently, StableFit PRO was updated on October 10, 2026 and FITS on October 8, 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.*