# PSP System vs NK Fit Coach

The clearest difference is update cadence: NK Fit Coach at every 6 days against PSP System's every 6 weeks. PSP System's advantage is iOS requirement (11.0 vs 15.0). 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.

PSP System ships an update every 6 weeks, NK Fit Coach every 6 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PSP System | NK Fit Coach |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Size | 20 MB | 16 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Proyectos Visuales Zaragoza, S.L.](https://appshunter.io/developer/917692719) | [JTBIT SL](https://appshunter.io/developer/1584775081) |

## What reviewers say

### PSP System

[App page](https://appshunter.io/ios/app/psp-system/id939632525)

**Features:** macOS Compatibility

**In-app purchases:** none


### NK Fit Coach

[App page](https://appshunter.io/ios/app/nk-fit-coach/id1584775079)

**In-app purchases:** none


## Frequently asked questions

### Is PSP System free?

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

### Is NK Fit Coach free?

NK Fit Coach is free to download, with no in-app purchases.

### Do PSP System or NK Fit Coach have ads?

Neither PSP System nor NK Fit Coach shows ads.

### Which is updated more often, PSP System or NK Fit Coach?

PSP System ships an update every 6 weeks, and NK Fit Coach every 6 days. Most recently, PSP System was updated on November 1, 2026 and NK Fit Coach on October 25, 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.*