# OS2Maps vs UK Waterways Map

The clearest difference is price: UK Waterways Map at Free against OS2Maps's $1.99. OS2Maps's advantage is device support (4 vs 2) and iOS requirement (11.0 vs 26.0). On update cadence, ads and in-app purchases there is nothing between them.

UK Waterways Map is free to download; OS2Maps costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OS2Maps ships an update every 6 days, UK Waterways Map weekly. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | OS2Maps | UK Waterways Map |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Paid | — |
| Size | 8 MB | 4 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alastair Begley](https://appshunter.io/developer/1297360973) | [Jack Finnis](https://appshunter.io/developer/1633101066) |

## What reviewers say

### OS2Maps

[App page](https://appshunter.io/ios/app/os2maps/id1368620189)

This app converts UK Ordnance Survey grid references into standard GPS coordinates. Once converted, it allows you to easily open these locations in Apple Maps or Google Maps for navigation. It's ideal for planning outdoor activities where starting points are given in OS grid format.

**Highlights:** Convert UK OS grid references, Generate GPS latitude and longitude, Open locations in Apple Maps, Open locations in Google Maps, Navigate to converted locations

**Features:** Vision Pro support

**In-app purchases:** none


### UK Waterways Map

[App page](https://appshunter.io/ios/app/uk-waterways-map/id6738012734)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OS2Maps free?

OS2Maps costs $1.99, with no in-app purchases.

### Is UK Waterways Map free?

UK Waterways Map is free to download, with no in-app purchases.

### Do OS2Maps or UK Waterways Map have ads?

Neither OS2Maps nor UK Waterways Map shows ads.

### Which is updated more often, OS2Maps or UK Waterways Map?

OS2Maps ships an update every 6 days, and UK Waterways Map weekly. Most recently, OS2Maps was updated on September 10, 2026 and UK Waterways Map on September 17, 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.*