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Offline downloads, including maps downloaded through the OS Maps mobile app and those redeemed via a code on paper maps are automatically saved in the default location that your device saves downloaded content.

Security restrictions inside the Android and iOS operating systems may prevent users from saving downloaded maps to a different location, including external SD cards.

The option to change the default location that downloads are saved will vary by device, so please check your device's settings and options.

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As with any mobile app, using OS Maps will impact your device's battery life. Features that use the GPS function such as 'Find my location', 'Route recording' and 'Route following' can have a significant impact on battery life. We suggest turning these features off, or only using them when necessary.

Top tip: If you're concerned about battery life, do not use the record or follow functions, as this requires the device to constantly update your location. Instead, show the route on screen, and check your position against the route manually. You may need to wait a few seconds after unlocking your device for the location to update.

To maximise battery life, you can also use your device’s built-in power saving options by reducing the time to standby/sleep, turning down screen brightness, turning off WiFi and Bluetooth and using any other power saving features.

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OS Maps will need to access certain permissions to work with certain features.

  • Location: To show your position on the map, record routes, use off-course alerts and display correct labels in AR mode. On some devices, you will need to allow location access 'At all times' to ensure your location is updated even if you open another mobile app or turn your screen off.

  • Email:  To import and export routes as GPX files from your email. Disabling this will prevent you from creating routes from imported GPX files. Exporting GPX files is limited to premium users only.

  • Camera: For AR functions including feature labelling and Tabletop 3D (iOS).

  • Storage: To save offline maps and routes

  • Contacts: To use route sharing function and send them to contacts via email, text or other messaging services.

When access is required for certain features, you will be notified and asked to allow OS Maps to access these permissions. You can change these permissions at any time in your device's settings.

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Certain functionality and features within the OS Maps mobile app require a data connection, either over WiFi or your mobile device's network connection. Some of these features include:

  • Viewing online maps

  • Downloading maps

  • Search

  • Login

  • Calculating route profiles

Viewing a large map area or downloading maps can use quite a lot of data so we recommend using WiFi where possible and making use of the ability to download offline maps for when you can't access WiFi

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The OS Maps mobile app is available on Apple iPhones and iPads running iOS 11 and higher and on Android devices using Android 5 and higher. 

You can also use the OS Maps web version, on computers and mobile devices that support the latest versions of most popular browsers.

Always make sure that you are using the same account on web and mobile app versions of OS Maps by using the same login details across all devices.

To make sure you're enjoying the best OS Maps experience, please keep your iOS & Android devices updated; make sure your web browser is using the latest available version, and that you regularly check the Apple & Google Play app stores for the latest updates on OS Maps.

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