For walking, cycling, riding or planning routes, OS Maps puts Great Britain’s most detailed leisure mapping at your fingertips. Simple to use and feature rich, it’s invaluable for enjoying the outdoors.

• MULTI AWARD WINNING: Yahoo Sports Technology Awards Best App, Outdoor Industry Awards Digital Product of the Year, Singletrack Best Online Service.
• DOWNLOAD FOR FREE. Get standard, Greenspace and aerial mapping of Great Britain all for free.
• If you’ve purchased an OS Explorer or Landranger map, use the app to download a digital version using the unique code on the inside of your map.

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

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

Plot a route to follow or share – or record your route while you’re out and about. Search for the best routes in your area as star rated by fellow outdoor enthusiasts.

Use OS Maps as your off-road satnav with automatic ‘snap-to-path’ giving you the most enjoyable and safe route between two points in National parks (Premium).

Download your favourite areas to view offline – so you can view any part of GB even without a mobile signal (Premium).

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 (Premium)

A nifty new augmented reality feature for iOS devices*. View a 3D model of your routes on top of your very own coffee table. A great way to preview a route before you tackle it, ensure it’s suitable for your level of fitness and avoid any scary drops, or an amazing way of showing your friends where your adventures have taken you!

• Export your favourite routes to your GPX device.


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 is really important to us. If there’s something you’d like us to know, please tell us, by phone on 03454 56 04 20, or via email 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 2.0.15

Users can zoom out further on newly downloaded / re-downloaded Explorer Map downloads (you will need to re-download maps for this to take effect; we'll also be making further improvements in the next releases). We've added a max zoom level for all map layers and fixed the source of some crashes to make the app more stable.

Ratings and Reviews

4.6 out of 5
15.5K Ratings

15.5K 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

leedrich ,

*Still* Needs Work

Over a year of the app with a premium subscription, there have been updates and improvements. But the app is still buggy. Randomly crashes, very heavy on the cpu/gpu/memory, very slow to respond and load refreshes (iPad 4 and iPhone X), when on or following a route it doesn’t refresh - so having to take gloves off or use your nose to give the screen a nudge is rather irritating. The other thing the is really really annoying is the fight (and lose) to look elsewhere in the location you’re in as the cursor/pointer refuses to let you leave your current position when following a route. Grrr. Oh and why is it impossible or not obvious to follow your route AND record it (to compare) e.g. where you deviated from your planned route. I now use my Garmin gps to follow/direct the route and the iPhone OS app to record it, which seems a waste of time with OS. It’s good but still needs a lot more polish. Considering the premium subscription, and purchasing offline maps you should be able to put the money into some real developing. You have to realise more and more people are using online or digital versions to replace physical maps - rightly or wrongly. OS need to move with the times and aim to get up there with the likes of Garmin where you are able to be confident you’ll not fall off an edge.

Developer Response ,

Thanks for this feedback - to help us improve the app stability it would be really useful if you could get in touch at so we can find out more about your issue with downloaded maps.

ifthusnicknameistakenigiveup ,

OS maps

Not a happy user at all! I used OS map finder originally and spent over £100 on tiles only to find they “discontinued” the app after a while so the features such as navigation and recording routes ceased to function. I complained but to no avail. How dare I complain that I had to pay a subscription to view maps I’d already bought!!😡 I’d like to see them try that attitude with paper maps. All I was offered was to migrate my maps to the new OS maps and pay a rip off annual subscription of £25 ish. This new app is clonky and not good to use and is definitely a backwards step compared to the old app. The maps have a habit of disappearing off my phone in the middle of following a route and need downloading again - not something you want to be doing when riding a horse!
The “follow a route” function isn’t as good as the old one either and you can’t do anything else while following a route.
The list of routes layout isn’t thought out. If you’ve got more than a few in your list you’re scrolling up and down for ages looking for your choice as you can see three at a time. They need to be in a concise list.
Too much time has been given to features I certainly am not interested in - all I want to do is record and plan routes in an easy concise and reliable way. This app feels like it’s been built by a gamer rather than a map user.

Developer Response ,

Hi. We are happy to give you the equivalent to your old MapFinder map tiles - but as the old app had no user registration we cannot link your new OS Maps account to past purchases automatically. If you get in touch with with the list of tiles you bought, we can ensure you get the same areas in OS Maps.

We should be releasing a new map storage and display engine pretty soon, which will hopefully revolve your issue with disappearing maps - although most of the time in the current version this can be revolved by zooming in more.

Personally, I don't tend to use the route follow function. I leave the route on screen, and check position manually - I find this more useful, and it saves batter power too, as it's not continually checking location, only updating when you turn the screen on.

We are looking at adding route sort options for your routes list, is the same way they are on the web.


Ordnance Survey
121.7 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
This app may use your location even when it isn't open, which can decrease battery life.
In-App Purchases
  1. 1 month subscription £4.99
  2. 1 year subscription £25.99
  3. 1 year auto-renewable sub £25.99


  • Family Sharing

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

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