GB Grid Ref Compass vs Spine Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GB Grid Ref Compass
This app displays your current location on a map of Great Britain, providing your GB Grid Reference, compass bearing, and latitude/longitude. It also shows GPS accuracy and includes a guide to the National Grid system. Location data can be shared via text, email, or tweet.
- GB Grid Reference (Ordnance Survey)
- Compass Bearing
- Latitude and Longitude (OSGB36 & WGS84)
- GPS Accuracy Display
- National Grid graphical guide
- Location sharing (SMS, Email, Tweet)
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Find out your current location on a GB Map, whilst in Great Britain. This app will give you your GB Grid Ref (Ordnance Survey / OS Grid Reference), along with a Compass Bearing and Latitude and Longitude values in both OSGB36 and WGS84 formats. The accuracy of the Device GPS signal will also be shown. Includes a handy graphical guide to the "National Grid" system. Whilst the app will work worldwide, the values given will only be of use within the United Kingdom. Ideal for use on walks. Always carry a map and physical compass in addition to your iPhone. For the best accuracy, use in an open space, away from trees or hill edges. Like a traditional compass, use with the phone in a flat position, not upright. When continued usage is required, you can set the iPhone Screen to stay on indefinitely, from the Settings tab. Send or Share your location information in a Text Message (or iMessage), Email or Tweet* This app requires Location Services to be enabled in your iPhone, and you must grant permission to the app to use these. Compatible with iPhone. Not compatible with iPod Touch, or (non-cellular) iPads, due to the lack of GPS and Compass hardware. * - Internet Connection, and correctly configured Text Message (or iMessage), Email and / or Twitter settings, required to fulfil. -- A sister app is now available for use in Ireland. Please search for Irish Grid Ref Compass.
Spine Guide
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Welcome to Sheffield Innovation Spine - your energised urban innovation district in the centre of Sheffield, UK. Powered by two leading universities, global businesses and a flourishing cluster of startups and spinouts, we connect people, ideas and research in spaces that inspire. Get to know the Spine with our dedicated app, featuring a directory of local businesses and innovation hubs, a self-guided walking tour and a changing programme of events guides. Whether you live, work, study or want to invest in the Spine, the app provides information about the people and activities which bring the Spine to life. The Spine Guide includes the official guide to Open Doors 2026, happening on October 20th. This free event is for curious people to explore Sheffield Innovation Spine. Meet with people innovating, making and doing cool stuff from Sheffield's specialist lab, studio and coworking spaces. Download the Spine Guide now to unlock exclusive content about the people, businesses, buildings and neighbourhoods which make Sheffield an amazing and innovative place. The app is GPS-enabled. This feature is used to show you relevant content based on your location. Note that you do not need to be at the locations in Sheffield featured in order to access the app content. The app also optionally uses Location Services to determine your location when the app is running in the background. It will trigger notifications when you are close to a location of interest. However, as with all apps that use location, please note that continued use of GPS running in the background can dramatically decrease battery life. During Open Doors 2026 on 20th October, content in the app is ‘unlocked’ by interacting with NFC tags at physical locations within Sheffield. Each scan will earn the user points. The user can optionally choose to join the event leaderboard, and a chance to win a £100 gift card.
Screenshots
Verdict
The clearest difference is price: Spine Guide at Free against GB Grid Ref Compass's $0.99. Spine Guide also leads on update cadence (daily vs every 6 months). GB Grid Ref Compass's advantage is iOS requirement (7.1 vs 15.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Spine Guide is free to download; GB Grid Ref Compass costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GB Grid Ref Compass ships an update every 6 months, Spine Guide daily. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.
| Parameter | GB Grid Ref Compass | Spine Guide |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 78.8% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 176 MB |
| Age rating | 4+ | 17+ |
| Developer | Mike Irving | Llama Digital |
Bugs and requests
GB Grid Ref Compass
Reported bugs
16 issues- Not accurate
- Does not work properly
- Inconsistent and inaccurate
- N is pointing East
- Rubbish
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- Does what it wants
- Cannot rely on it at all
- Doesn't work with 6s
- Unable to connect
- Text too small
- Difficult to make out numbers
- Needs degrees in Lat/Long
- iPhone battery life drain
- App blocks being used
- Won't let me enter grid ref
- Wanted app to put in grid ref and get longitude and compass
Requested features
8 requests- Ability to copy grid ref data
- Bold grid ref characters larger
- Add FB Messenger sharing option
- Convert OS grid ref to lat/long
- Addition of maps
Show 3 moreShow fewer
- Alternative lat/long formats (minutes)
- Increase text size option
- Incorporate maps or Google Earth
Spine Guide
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GB Grid Ref Compass
No in-app purchases
Spine Guide
No in-app purchases







