OS Maps: Walk, Hike, Run, Bike

In-app purchases
3.7
33.1K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Explore the outdoors the way you want, all while staying safe with OS Maps. Whether you want to hike, bike or run, OS Maps will guide you through amazing trails across the USA. Want to find new places in your local neighborhood? Or plan that next thru-hiking adventure? From breathtaking National Parks to easy walks along the coast, experience the thrill of finding a brand new trail that you never even knew existed with OS Maps.

Why you’ll love using OS Maps:

EXPLORE NEW PLACES, CREATE NEW ADVENTURES
Plan unlimited trails with detailed, up to date maps across the country & discover that next great trail! Whether you love to hike, bike or run, there are multiple map layers to suit any place, any activity.

TRAILS AT YOUR FINGERTIPS
Search for the best trails in an area as rated by fellow outdoor enthusiasts or plot your own trail to follow, share & record. Use OS Maps as your go-to trail finder, fitness tracker & outdoor guide.

VIEW & DOWNLOAD MAPS OFFLINE
No cell reception? No problem. Download your favorite areas to save & view offline, so you can view your maps & chosen routes even without cell reception. Plus, you can export your favorite trails & routes to your GPX device.

TRAIL MAPS TO SUIT ANY ACTIVITY
Choose from multiple map layers, plan activities & find trails with detailed topographic mapping; or explore the landscape in stunning detail with aerial view. You can even see the world in 3D with 3D map layers.

RECORD, REVIEW & RELIVE ACTIVITIES
Use the activity tracking feature & activity history dashboard to track each & every adventure. Look back on past activities & review your stats.

STAY SAFE ON THE TRAIL
Stay the course with live GPS location tracking & never miss a turn with off-course alerts to keep you on track. Download trails, routes & maps & share with others, whether they’re joining you or want to make sure you stay safe.

STAY INFORMED WITH COMMUNITY ALERTS
Get real-time updates from other OS Maps users with Community Alerts. Whether it’s a trail closure or tricky terrain; you’ll stay in the know thanks to insights from the outdoor community. It’s like having thousands of trail buddies helping you plan smarter and stay safer.

USE ON EVERY DEVICE
Go from laptop to hilltop with ease! View, create & sync your routes & activities with a single account across multiple devices. Plan on desktop, follow & record your activities on mobile and Wear OS device.

PLANNING MADE EASY
Use OS Maps as your off-road GPS tracker with automatic ‘snap-to-path’ making route planning easy with the shortest distance between your waypoints plotted automatically.

UNLIMITED PRINTING
Print copies of trails & maps to take with you so you always have a backup to hand.

USEFUL INFO
$4.99 for monthly subscriptions & $28.99 for annual subscriptions.
Battery life can be dramatically decreased by using GPS constantly.
We release updates to all of our apps as we improve them, making them even more stable & adding extra features. Along the way, your feedback & comments about those apps are really important to us. If there’s an issue or something you’d like us to know, head to https://www.ordnancesurvey.co.uk/contact-us
OS Maps offers either auto-renewing monthly or annual subscriptions to provide you with premium access to OS Maps while you maintain an active subscription. If you choose to purchase a premium subscription, your payment will be processed by Google.
Subscriptions may be managed through the Google Play App after purchase. Subscriptions on Google Play are renewed automatically unless you unsubscribe at least 24-hours before the end of the current period. Your Google account will be charged for renewal no more than 24 hours before to the end of the current period. You may cancel a subscription at any time before the end of the applicable billing period by going to your Subscriptions list on the Google Play App.
Updated on
4 Nov 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity and App info and performance
This app may collect these data types
Location, Health and fitness and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.7
31.1K reviews
Dan
17 July 2025
Very slow to load maps, even when the section is allegedly downloaded for offline use. Too much focus on the "social" side like route sharing and suggestion rather than being a good mapping app. For anyone looking for a decent mapping app Memory and Anquet are far more fit for purpose but use the same OS data.
14 people found this review helpful
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Alex Bardill
11 February 2023
Been using the app for months to plan and follow hikes. I still carry a paper map around in case of emergencies, but I haven't used it since installing the app. The app is just so much more convenient. One feature I would like to see is the ability to add nodes/waypoints anywhere on a route, rather than just at the end. I'm surprised to see so many people having performance issues with the app. For me it starts up instantly, has never crashed and doesn't excessively drain my battery (Pixel 5).
8 people found this review helpful
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Ordnance Survey Ltd
16 February 2023
Hi Alex, thank you for the 5-star review, and glad to hear you are enjoying OS Maps! We have route waypoints on our roadmap so watch this space!
Leo Hendry
28 April 2024
Authentication broken Straight away I immediately had a problem that the standard Android "suggest password" box didn't come up when registering in-app. I got around this by registering online, but I am unable to log in to my account as it seems they have deliberately blocked the password manager integration within the app as every other app works fine. I spent nearly an hour trying to get around this, but in the end I gave up.
2 people found this review helpful
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What's new

This release contains a fix to address reset password and email verification issue where the email link wouldn't open in the app.