# M3softwareFit vs CheckProof

The clearest difference is update cadence: CheckProof at every 11 days against M3softwareFit's every 2 months. CheckProof also leads on iOS requirement (15.0 vs 18.6). 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.

M3softwareFit ships an update every 2 months, CheckProof every 11 days. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | M3softwareFit | CheckProof |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/checkproof/id1478261940/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | — | Free |
| Size | 25 MB | 92 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [M3Software](https://appshunter.io/developer/520851916) | [Checkproof AB](https://appshunter.io/developer/974089734) |

## What reviewers say

### M3softwareFit

[App page](https://appshunter.io/ios/app/m3softwarefit-checkin/id819542037)

**Features:** macOS Compatibility

**In-app purchases:** none


### CheckProof

[App page](https://appshunter.io/ios/app/checkproof/id1478261940)

This app provides a mobile solution for businesses to create custom checklists, manage deviations, and report on facility assets. It helps ensure quality, safety, and compliance with features like offline mode and customizable reports.

**Highlights:** Customizable checklists with drag-and-drop interface, Deviation handling with photos and user assignment, Offline mode for data collection, Fluid reporting with statistics and Excel export, User permissions and notifications, External API for third-party system integration

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

**In-app purchases:** none


## Frequently asked questions

### Is M3softwareFit free?

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

### Is CheckProof free?

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

### Do M3softwareFit or CheckProof have ads?

Neither M3softwareFit nor CheckProof shows ads.

### Which is updated more often, M3softwareFit or CheckProof?

M3softwareFit ships an update every 2 months, and CheckProof every 11 days. Most recently, M3softwareFit was updated on October 2, 2026 and CheckProof on October 4, 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.*