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OS MapFinder

By Ordnance Survey Limited

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OS MapFinder is the premium iPhone/iPad/iPod Touch mapping App from Ordnance Survey, enabling users to view, navigate and download the most up-to-date OS Landranger (1:50 000) and OS Explorer (1:25 000) maps of Great Britain in amazing high-resolution.

OS MapFinder is ideal for walkers, ramblers, runners, cyclists and generally anyone looking to enjoy the outdoors. The fast and easy to use App comes bundled with free overview mapping - including Ordnance Survey’s trusted and reliable 1:250 000 Scale mapping. The App allows users to quickly, and accurately, search by place name, postcode, and grid reference.

Ordnance Survey maintains Great Britain’s definitive digital mapping database, and with OS MapFinder users can enjoy the print quality of the trusted OS Landranger and OS Explorer maps (660dpi) on their iOS devices. The App allows users to buy their own bespoke high-resolution maps via Apple’s ‘In App Purchase’ service. Each mapping tile is fully downloaded to the iOS device, meaning that it will work anywhere regardless of iPhone/iPad signal. The tile download facility allows users to select and purchase up-to-date mapping of their favourite locations, and then easily plan, plot, record and review their own bespoke walks, runs and cycle rides.

OS MapFinder brings all the detail and reliability of the iconic Ordnance Survey paper maps to iOS devices.

OS MapFinder features Include:
•Download and purchase trusted and up-to-date OS Explorer and OS Landranger maps in amazing high-resolution detail
• Route recording – record your own personal routes in real time
•View current time, distance, speed , Ordnance Survey grid reference, latitude and longitude
•Route planning and track functionality – plan your own bespoke routes and measure your times for each trip
•Review and plan new routes from your own personal routes library
•Select your own route types , walking , running or cycling and view the estimated route duration
•Smooth and fast zooming and scrolling between maps
•Real-time location tracking via GPS or Wifi positioning
•Ordnance Survey free map stack viewable offline
•A free OS Landranger and OS Explorer map tile of Exeter
•Offline viewing – all downloaded OS Landranger and OS Explorer map tiles can be viewed offline
•Place name lookup – search for thousands of places across Great Britain in seconds
•Postcode lookup – search and locate postcodes
•Grid reference lookup
•Useful tips on how to read and navigate maps.


Any 100 km2 map tiles purchased will be updated for FREE under a revision program. Tile updates are unlimited for the life of the application*.

Map tiles once purchased through your iTunes account can be uploaded onto all devices registered to that account (i.e. if you purchase on iPhone you do not have to repurchase on iPad). To do this, simply go to "My Maps" from the menu and then tap the sync symbol (In the top right). You will need to enter your Apple id and the app will start syncing.

Users who are having difficulty in finding purchased maps should make sure they are zooming in far enough.

*or until 31st March 2016 (whichever is longer), updates will generally occur bi-annually as we update our mapping.

Continued use of GPS running in the background can dramatically decrease battery life..

Ordnance Survey is committed to creating the best mobile mapping experiences. As part of this, we will be releasing regular updates to all our apps to improve their user experience and stability. We welcome your feedback and comments, and strive to act promptly on any complaints. Please get in contact with us via Twitter @OSLeisure, by phone on 03454 56 04 20
or via email at

What's New in Version 3.1.1

Updated legal information


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Customer Reviews


The latest version of this app is awesome! Updates no longer delete saved trails (seemed to be an issue with the old version) and the look and feel is much improved.
I use the app for mountain biking and it performs flawlessly. It gives me total confidence to explore off the beaten track and I love the ability to download gpx files for organised rides and from magazines.
Other than the hassle of taking it out of my pocket (don't want to mount it on my bars) it outperforms standalone gps units I've seen, mostly because of the iPhones crystal clear display.
Top marks!!

Slow development

I use this app a fair amount when I'm in the UK but I am just so disappointed that it is not gaining the new features required to make this the awesome app that it has the potential to be!

Key features that need to be added include the ability to add POI and for the maps to have elevation data included. Elevation data would make the estimated time of planned routes more accurate and would also allow for a comprehensive route summery to be presented.

As others have said, the tiles are still pretty expensive as you inevitably need three or four for a decent route which makes it a rather expensive way of getting your maps.

Finally an apple watch app would be a great companion to the phone app, I know it's probably not a top priority but if tied in with the heart rate monitor etc could allow for some really cool new features.

A complete saviour when you're where Google Maps doesn't go

But you pushed out an update to my phone, using my bandwidth, just to "update legal information"? That's ridiculous.

OS MapFinder
View In iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Navigation
  • Updated:
  • Version: 3.1.1
  • Size: 323 MB
  • Language: English
  • Developer:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimised for iPhone 5, iPhone 6, and iPhone 6 Plus.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. 1:50k England South West Region£10.49
  2. 1:50k England South East Region£10.49
  3. 1:50k Wales Region£10.49
  4. 1:25k NY20£2.29
  5. 1:25k NY30£2.29
  6. 1:50k England North - Lancashire, Yorkshire and Humber Region£10.49
  7. 1:50k England Midlands Region£10.49
  8. 1:50k England East Region£10.49
  9. 1:50k England North - Cumbria, Northumberland and Tyne Tees Region£10.49
  10. 1:50k London - M25 Boundary Region£2.29