# PW Fit vs MASF Tool

The clearest difference is update cadence: MASF Tool at every 9 days against PW Fit's monthly. PW Fit's advantage is iOS requirement (13.0 vs 16.0). 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.

PW Fit ships an update monthly, MASF Tool every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | PW Fit | MASF Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/pw-fit/id6479971674/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Size | 197 MB | 18 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Prowell Technology Co., Ltd.](https://appshunter.io/developer/1692309254) | [Shanghai MASF Iot Technology Co., Ltd](https://appshunter.io/developer/1888108750) |

## What reviewers say

### PW Fit

[App page](https://appshunter.io/ios/app/pw-fit/id6479971674)

**Features:** macOS Compatibility

**In-app purchases:** none


### MASF Tool

[App page](https://appshunter.io/ios/app/masf-tool/id6768856867)

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

**In-app purchases:** none


## Frequently asked questions

### Is PW Fit free?

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

### Is MASF Tool free?

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

### Do PW Fit or MASF Tool have ads?

Neither PW Fit nor MASF Tool shows ads.

### Which is updated more often, PW Fit or MASF Tool?

PW Fit ships an update monthly, and MASF Tool every 9 days. Most recently, PW Fit was updated on October 24, 2026 and MASF Tool on October 24, 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.*