# Open Canal Map UK vs Warwick Castle

The clearest difference is review sentiment: Open Canal Map UK at 59% against Warwick Castle's 9%. Open Canal Map UK also leads on update cadence (every 2 weeks vs every 10 months). Warwick Castle's advantage is in-app purchases (none vs 1) and rating (4.7 vs 4.4). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Open Canal Map UK sells 1 one-off in-app purchase. Warwick Castle asks for nothing beyond the download.

Warwick Castle holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 11 and 45 respectively. Written reviews complicate that: 59% of Open Canal Map UK's written reviews are positive against 9% of Warwick Castle's, so the app with the better star average is not the one people write more warmly about.

Open Canal Map UK ships an update every 2 weeks, Warwick Castle every 10 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Open Canal Map UK | Warwick Castle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (11 ratings)](https://appshunter.io/ios/app/open-canal-map-uk/id1380322683/reviews) | **[4.7 (45 ratings)](https://appshunter.io/ios/app/warwick-castle/id1573964490/reviews)** |
| Number of ratings | 11 | **45** |
| Positive reviews | **59.3% of reviews** | 9.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 10 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 106 MB | 173 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tom Sapey](https://appshunter.io/developer/1547266625) | [Merlin Entertainments Group Ltd](https://appshunter.io/developer/374862994) |

## What reviewers say

### Open Canal Map UK

[App page](https://appshunter.io/ios/app/open-canal-map-uk/id1380322683)

Navigate the UK's waterways with a comprehensive map of canals and rivers. Discover points of interest like locks, services, and commercial amenities. Contribute to the community by adding new locations and keeping the map up-to-date.

**Highlights:** UK canal and river mapping, Points of interest (locks, bridges, services), User contributions and updates, Boater services (water, pumpouts), Commercial services for cruisers, Automatic map updates

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Adverts Permently | $4.99 | one-time |

**What reviewers like**

- 👍 Very useful for canal navigation
- 🗺️ Great interactive maps
- 💡 Rich with information
- 🆓 Free to use
- 🚀 Works well with GPS

**What reviewers complain about**

- 😠 Ads are intrusive and polluting
- 🐛 Location not found after update
- ⚠️ Static info is outdated
- ❓ No mechanism to report errors
- ⏳ Lacks ETA feature

**Reported bugs**

- Location not found after update
- Tow path closure location incorrect
- Locks have disappeared from the Thames map
- App icon changed, graphics horrid
- Stopped working on iPad

**Requested features**

- Add ETA feature
- Include widths, depths, and air height of canals
- Option to change text size
- Option to switch off blurry Google map overlay
- Add map legends


### Warwick Castle

[App page](https://appshunter.io/ios/app/warwick-castle/id1573964490)

Plan your visit to a historic castle with this official app. Access show times, navigate with a detailed map, and discover exclusive offers. Upgrade your experience with add-on attractions for a more immersive visit.

**Highlights:** Purchase tickets and short breaks, Add tickets to the app for easy entry, View show times and set reminders, Interactive map with wayfinding, Discover nearby attractions, shops, and restaurants, Upgrade visit with add-on experiences, Exclusive offers and discounts

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

**In-app purchases:** none


## Frequently asked questions

### Is Open Canal Map UK free?

Open Canal Map UK is free to download, with in-app purchases available.

### Is Warwick Castle free?

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

### Which has better reviews, Open Canal Map UK or Warwick Castle?

Warwick Castle is rated higher. Open Canal Map UK averages 4.4 out of 5 from 11 ratings, while Warwick Castle averages 4.7 from 45 ratings.

### Do Open Canal Map UK or Warwick Castle have ads?

Neither Open Canal Map UK nor Warwick Castle shows ads.

### Which is updated more often, Open Canal Map UK or Warwick Castle?

Open Canal Map UK ships an update every 2 weeks, and Warwick Castle every 10 months. Most recently, Open Canal Map UK was updated on November 6, 2026 and Warwick Castle on November 7, 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.*