# Prim Diet vs staunch.fit

The clearest difference is update cadence: staunch.fit at weekly against Prim Diet's every 2 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.

Prim Diet ships an update every 2 months, staunch.fit weekly. Both last shipped on October 30, 2026.

## The numbers

| Metric | Prim Diet | staunch.fit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 132 MB | 93 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [niwiai private limited](https://appshunter.io/developer/1682295085) | [staunch.fit](https://appshunter.io/developer/1810146517) |

## What reviewers say

### Prim Diet

[App page](https://appshunter.io/ios/app/prim-diet/id6496686173)

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

**In-app purchases:** none


### staunch.fit

[App page](https://appshunter.io/ios/app/staunchfit/id6754526429)

**In-app purchases:** none


## Frequently asked questions

### Is Prim Diet free?

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

### Is staunch.fit free?

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

### Do Prim Diet or staunch.fit have ads?

Neither Prim Diet nor staunch.fit shows ads.

### Which is updated more often, Prim Diet or staunch.fit?

Prim Diet ships an update every 2 months, and staunch.fit weekly. Most recently, Prim Diet was updated on October 30, 2026 and staunch.fit on October 30, 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.*