# GB Grid Converter vs Coordinates

The clearest difference is ads: GB Grid Converter at none against Coordinates's shown. GB Grid Converter also leads on rating (5.0 vs 4.6) and review sentiment (76% vs 64%). Coordinates's advantage is ratings volume (6.8K vs 1) and update cadence (monthly vs every 2 months). On price, in-app purchases, monetization model and iOS requirement there is nothing between them.

Both are free to download. GB Grid Converter sells 1 one-off in-app purchase and Coordinates sells 6 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

GB Grid Converter holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Coordinates has 6.8K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 76% of GB Grid Converter's written reviews are positive against 64% of Coordinates's.

GB Grid Converter ships an update every 2 months, Coordinates monthly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | GB Grid Converter | Coordinates |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gb-grid-converter/id382369923/reviews)** | [4.6 (6.8K ratings)](https://appshunter.io/ios/app/coordinates-gps-converter/id494286614/reviews) |
| Number of ratings | 1 | **6.8K** |
| Positive reviews | **75.9% of reviews** | 63.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 107 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Geospike Pty Ltd](https://appshunter.io/developer/500622151) | [Mapnitude Company Limited](https://appshunter.io/developer/473558784) |

## What reviewers say

### GB Grid Converter

[App page](https://appshunter.io/ios/app/gb-grid-converter/id382369923)

This app converts British National Grid References to Latitude/Longitude coordinates and vice-versa. It supports both OSGB36 and WGS84 datums. You can view converted coordinates in Maps, send them to other apps, or copy them to your clipboard.

**Highlights:** Convert British National Grid to Lat/Long, Convert Lat/Long to British National Grid, Supports OSGB36 and WGS84, View coordinates in Maps app, Send coordinates to other apps, Copy coordinates to clipboard, Fuzzy parsing for input

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GB Grid Converter Premium | $10.00 | one-time |

**What reviewers like**

- 👍 Brilliant app overall
- 📍 Accurate grid references
- 🗺️ Shows location on map
- 🚀 Navigates to grid reference
- 💡 Instant and accurate grid reference

**What reviewers complain about**

- 🐛 Drop pin no longer gives TQ
- 🔊 No sound when driving
- 📉 Accuracy issues (can't get to 5m)
- 🐛 Clunky and inaccurate interface
- 💥 Crashes iPad Air

**Reported bugs**

- Drop pin does not give TQ anymore unless at location
- No sound when driving to a grid reference
- App crashes when asking for directions on iPad mini
- Latest update has issues, doesn't work on iPhone or iPad
- New marker pins on map not accurate, same grid ref for all pins

**Requested features**

- Direct reference to What 3 Words
- Watch compatibility
- Convert WGS84 to OS grid
- Increase accuracy by another decimal place


### Coordinates

[App page](https://appshunter.io/ios/app/coordinates-gps-converter/id494286614)

This app is a versatile tool for converting and managing geographic coordinates. It supports numerous global formats and datums, allowing users to view, input, and save locations with rich details. Ideal for professionals and outdoor enthusiasts needing precise location data.

**Highlights:** Coordinate conversion (UTM, MGRS, Georef, etc.), Batch conversion of multiple coordinates, Add notes, photos, and media to saved locations, Datum conversion with PROJ.4 support, Real-time navigation and tracking, Offline map tile downloads, Import/export GPX, GeoJSON, KML files

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Upgrade | $1.99 | per month |
| Plus Upgrade | $2.99 | per month |
| Plus Upgrade | $9.99 | per 6 months |
| Plus Upgrade | $15.99 | per 6 months |
| Plus Upgrade | $17.99 | per year |
| Plus Upgrade | $28.99 | per year |

**What reviewers like**

- 🚀 Accurate location finding
- 👍 Simple and easy to use
- 💡 Supports multiple coordinate formats
- 🚀 Works well overseas
- 👍 Helpful for environmental research

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 💰 Expensive subscription to remove ads
- 🤔 Confusing or unintuitive user interface
- 🔍 Difficulty finding small locations
- 🙄 Ads covering important information

**Reported bugs**

- Coordinate display issues (e.g., UTM showing incorrect hemisphere)
- App crashing or freezing on launch
- Inability to delete drawn lines or markers
- Coordinate conversion not working as expected
- Compatibility issues with newer iPhone models

**Requested features**

- Navigation and routing functionality
- Support for What3Words coordinate system
- Option to set preferred coordinate format as default
- Ability to enter addresses or intersections to get coordinates
- Add altitude information to saved locations


## Frequently asked questions

### Is GB Grid Converter free?

GB Grid Converter is free to download, with in-app purchases available.

### Is Coordinates free?

Coordinates is free to download, with in-app purchases available.

### Which has better reviews, GB Grid Converter or Coordinates?

GB Grid Converter is rated higher. GB Grid Converter averages 5.0 out of 5 from 1 ratings, while Coordinates averages 4.6 from 6.8K ratings.

### Do GB Grid Converter or Coordinates have ads?

Coordinates shows ads; GB Grid Converter does not.

### Which is updated more often, GB Grid Converter or Coordinates?

GB Grid Converter ships an update every 2 months, and Coordinates monthly. Most recently, GB Grid Converter was updated on November 1, 2026 and Coordinates on November 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.*