# Distance M vs PSC Check

The clearest difference is update cadence: Distance M at fortnightly against PSC Check's every 10 months. On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Distance M ships an update fortnightly, PSC Check every 10 months. The most recent releases landed on September 9, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Distance M | PSC Check |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/psc-check/id1181775762/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 10 months |
| Monetization | Free | Free |
| Size | 40 MB | 27 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Netpas](https://appshunter.io/developer/546619495) | [NIPPON KAIJI KYOKAI GENERAL INCORPORATED FOUNDATION](https://appshunter.io/developer/956676437) |

## What reviewers say

### Distance M

[App page](https://appshunter.io/ios/app/distance-m/id546619492)

This app provides maritime professionals with tools for calculating distances between ports, estimating voyage routes, and monitoring vessels. It also offers features for typhoon tracking, anti-piracy measures, and saving/loading estimation data.

**Highlights:** Port distances and route calculation, Charter base and voyage estimation, Typhoon and vessel monitoring, Coordinates to coordinates distance, Estimation save and load functionality, Anti-piracy options

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

**In-app purchases:** none


### PSC Check

[App page](https://appshunter.io/ios/app/psc-check/id1181775762)

This app assists with pre-departure equipment checks for maritime vessels, helping to reduce the risk of inspection detentions and deficiencies. It categorizes items by location, allows for input of inspection results with notes and photos, and generates PDF reports. Users can also review statistical data on common deficiencies.

**Highlights:** Categorized equipment checklist by location, Input inspection results with notes and photos, Generate PDF reports for shore-side forwarding, Analyze detainable deficiency statistics, Regular updates for checklist and statistics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Distance M free?

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

### Is PSC Check free?

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

### Do Distance M or PSC Check have ads?

Neither Distance M nor PSC Check shows ads.

### Which is updated more often, Distance M or PSC Check?

Distance M ships an update fortnightly, and PSC Check every 10 months. Most recently, Distance M was updated on September 9, 2026 and PSC Check on July 6, 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.*