Explore the great outdoors the way you want, all while staying safe with OS Maps - GB’s most popular leisure mapping app. Whether you want to walk, cycle, hike, run or ramble, OS Maps will guide you through stunning routes across Great Britain.

Looking to stay local? Or do you want to venture off the beaten track? Enjoy the fresh air, listen to the crunch of leaves under your feet and experience the enjoyment of finding a brand new route that you never even knew existed.

Why you’ll love using OS Maps:

Subscribe to unlock the detail and accuracy of OS leisure maps across the whole country including OS Explorer 1: 25,000 and OS Landranger 1:50,000 maps.

Search for the best routes in an area as rated by fellow outdoor enthusiasts and plot your own route to follow, share or record.

OS Maps was voted Yahoo Sports Technology Awards Best App, Outdoor Industry Awards Digital Product of the Year and Singletrack Best Online Service.

View, create and sync your activities between desktop and mobile. On desktop, premium users can use our 3D Aerial Layer to see the route terrain, explore in stunning 3D and print maps.

• Explore authored routes from BBC Countryfile, Country Walking, Mountain Bike UK, Trail and AA Walks and more.

Use OS Maps as your off-road sat nav with automatic ‘snap-to-path’ giving you the most enjoyable and safe route between two points in National Parks.

Download your favourite areas to view offline – so you can view any part of GB even without signal. Plus, you can export your favourite routes to your GPX device.

Print copies of routes and maps to take with you so you always have a backup.

Pan the landscape to see what’s nearby including hills and mountains, forest and woodland, transport, settlements, coast and water. And, with one click, find local area information with routes, places to stay and local images.

Preview a route before you tackle it, ensure it’s suitable for your level of fitness and avoid any scary drops. Our 3D model feature lets you check out your routes on top of your very own coffee table!

OS Maps Premium is available through a 1 month or 1 year subscription. Prices are posted in GBP but may vary by country or when converted to local currency. Subscriptions will auto-renew. Payment will be charged to iTunes Account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
Terms & Conditions at

Battery life while using the app can be extended downloading maps offline prior to use, operating in Flight Mode (the GPS will still work) and turning off the screen when not in use. We release updates to all of our apps as we improve them, making them even more stable and adding extra features. Along the way, your feedback and comments about this app are really important to us. If there’s something you’d like us to know, please tell us at
*This feature uses Apple's ARKit which requires an iPhone 6s, iPhone SE, iPad 2017, iPad Pro or any later device.

What’s New

Version 3.0.5

This releases includes a number of minor bug fixes / stability improvements as well as some tweaks to route plotting to make it easier to add new waypoints mid-route (long press in the middle of existing segments to create a new
waypoint, then long press and drag the waypoint to move it). We've also responded to feedback about a change in the route recording process, so you can now add a walk to your activity record without naming and saving the recorded route.

Ratings and Reviews

4.7 out of 5
32K Ratings

32K Ratings

Steve J Harris ,

Fantastic app

Can’t really understand some of the poor reviews of this app – people really do expect too much. Under £20 for map coverage of the entire UK is fantastic value for money, and using the app has massively increased my enjoyment of our fantastic countryside. Although you should never over-rely on technology, the ability to know exactly where you are – for example knowing when you are at the right path junction in difficult terrain or weather conditions when you might otherwise take the wrong route or become disorientated – takes the worry out of walking and lets you enjoy what you’ve come for. My one criticism, however, is that I have in the past had issues when trying to download offline maps for use covering a large area – sometimes it’s difficult to ensure all the tiles overlap, and they don’t always load properly. I am sure, however, this will be ironed out in due course. Overall superb. Well-done OS

Myles M H ,

Great app

Had the app for a few months, it’s almost almost brilliant. However I’ve had constant issues with bugs, my main problem being the offline options not working. If I can’t access the maps without phone signal then this app is pretty useless and unsafe. I don’t rely 100% on this app but others might, if the map doesn’t load in some scenarios it could put them in a very dangerous position.

Also has issues loading with signal, both 4G and WiFi. Wierd things like not being able to load offline maps and routes when I have phone signal. In the apps defence, it hasn’t totally let me down yet however I have had to close it and re-open it over and over then walk to an area I have phone signal, open and close again, wait 5 minutes, do 5 star jumps, whisper a short poem into my phone, perform 3 Hail Marys... the last bit I made up but you get the picture. I usually can get it to work but sometimes it takes up to 20 minutes of messing about with it.

My phone is an iPhone XR, in good condition, lots of free memory, I don’t have any issues with it. This app has problems not my phone. Please fix the bugs!! When this app works perfectly it really is brilliant! If this app worked seamlessly I would unquestionably next giving it 5 stars. Right now though if the map won’t load then this app is useless.

Twiddler64 ,

Takes the stress out of walks and rides

Since writing this I’ve had what I hope is just a technical problem. All the routes I had planned, saved and shared (around 20) have just disappeared from my app. I’m not happy and tried, unsuccessfully to use the help Chat on this site. So I’ve knocked a couple of stars off till I get this solved.

Like most walkers and cyclists I’ve used OS maps for years, plus I love looking at maps to plan rides and walks. Historically I’ve been wary of technology having lived in an around the Pennine chain for most of my life with poor signals etc. And there’s a universal law of physics that sometimes batteries fail or go flat.
However I needed to upgrade my local maps and bought the waterproof version. This lets you access the app, download the map and plan routes. I love it. I’m planning new routes and been using the app to follow them on my walks. It allows me to know how far I’m planning to walk or cycle - and like today - it flagged up when I went off route while out walking. As far as I can tell so far, it doesn’t drain my iPhone battery - but my maps in my bag anyway!
Like a lot of map apps it’s pushing me into monthly subscriptions to get all the benefits - annoying- but I don’t need that. It meets my needs.

Developer Response ,

We're sorry to hear that you're experiencing problems. Please can you drop us a message at with your account details so we can investigate and get this resolved for you.

App Privacy

The developer, Ordnance Survey, has indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers
  • Usage Data

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases
  • Location
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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