Makes from your iPhone/iPad a complete GPS device with the detailed OS Explorer maps provided by Ordnance Survey. Viewed maps will be stored on your device so that Topo GPS can also be used without an internet connection.

Why should you buy an expensive GPS device if you can install Topo GPS on your iPhone/iPad? Topo GPS contains all functions of a regular GPS device for less money, has a much more detailed map, and is more convenient to operate. The accuracy of the position determination is in favorable conditions about 5 m.

In order to use the detailed topographic maps you have to make an in-app purchase. You can easily select the sections you need on an overview map. You get lifetime access to purchased sections including future map updates. A discount will be given if you buy a large section at once.

Purchases are made available on all devices that share the same iCloud account.

Ideal for walking, hiking, cycling, mountainbiking, horse-riding, geocaching, trail running and other outdoor activities. Also suited for outdoor professionals.

- Map -
* Topographic map of Great Britain 1:25.000, OS Explorer, newest edition,
* Very detailed maps, with buildings, cultivation, all roads including the smallest forest trails, contour lines, and characteristic elements in the landscape.
* Future updates of the map are included for free.
* The map can be zoomed, moved and rotated.
* All maps of a certain region can be made offline accessible using the map download screen.
* Percentage of map that is offline accessible is indicated on the top left of the map.

- Intuitive interface -
* Clear menu with most important functions.
* Different dashboard panels with distance, time, speed, altitude and coordinates.
* Clear manual at

- Routes -
* Recording of routes, with pause and restart possibility.
* Planning of routes via route points.
* Importing routes in gpx, zipped gpx, kml, kmz, and OZI explorer plt format.
* Editing routes.
* Sharing routes.
* Free access to route collection Topo GPS.
* Routes can be synchronized with your other devices using iCloud.
* Searching routes with filters.
* Routes can be organized into folders.
* Maps of a route can be made offline accessible.

- Waypoints -
* Adding waypoints by pressing on map.
* Adding waypoints through address or coordinates.
* Supported coordinate systems: WGS84 decimal, WGS84 degree minutes (seconds), UTM, MGRS and Ordnance Survey Nat. Grid.
* Importing waypoints in gpx and zipped gpx format.
* Sharing waypoints.
* Editing waypoints.
* Photos can be added to waypoints.
* Waypoints can be synchronized with your other devices using iCloud.
* Searching waypoints with filters.
* Waypoints can be organized into folders.

- Your location -
* Location and movement direction indicated by arrowed marker.
* Displayable in WGS84 decimal, WGS84 degree minutes (seconds), UTM, MGRS and Ordnance Survey Nat. Grid coordinates.
* Sharing and saving as waypoint.

- In app purchases -
* Topographic maps of Belgium, Denmark, Finland, France, Germany, Netherlands, Norway, New Zealand and Sweden.
* OpenStreetMap world map.

If you are recording a route, the GPS will run in the background. Continued use of GPS running in the background can dramatically decrease battery life.

On an iPad and iPod touch, the location can only be determined with an accuracy of a few meters if the device contains a GPS. The iPhone always contains a GPS.

Rdzl, the company behind Topo GPS, does not obtain in any way the location of the user of Topo GPS. Rdzl does not obtain your routes and waypoints, unless you share a route with Topo GPS. Rdzl does not register which map tiles you have downloaded. We sell our product, not our user data.

What’s New

Version 5.8.2

- New in-app purchases:
* Topographic maps of New South Wales and Queensland (Australia)
* Topographic overview map of Australia
* 1 year subscription to entire map of France

- Coordinate grid squares (Menu > Layers > Coordinate grids > Squares)
- Bug fixes and other small improvements

Ratings and Reviews

4.6 out of 5
123 Ratings

123 Ratings

TimAntro ,

Great alternative to OS apps

Excellent & well put together app with a lot of thoughtful design done on making it simple to use whilst outdoors without hammering your battery.

Really like how you can buy smaller map tiles just for the route you need. Also if you upload a GPX route file into the app it will work out the minimum number of tiles you’ll need at the cheapest price.

Great for trail running & hiking with detailed OS map tiles for the UK. Excellent coverage for trips to France & other countries too.

Aircraft bin lid ,

A most have

These maps are most handy for we Caravanners as they show all the hills and places you should avoid. Brilliant.

Kitty280908 ,

Best foot path map app out there

Tried a few foot path map apps and this is by far the best one!

In-App Purchases

64 km² of Great Britain
4 map parts of 4 x 4 km of Great Britain
256 km² of Great Britain
16 map parts of 4 x 4 km of Great Britain.
Topographic map of Spain
Essential when traveling through Spain.
Topographic map of Germany
Essential for exploring Germany.
64 km² of France
4 map parts of 4 x 4 km of France.
Topographic map New Zealand
Indispensable for exploring New Zealand.


61.7 MB

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


English, Danish, Dutch, Finnish, French, German, Norwegian Bokmål, Spanish, Swedish

Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© rdzl
In-App Purchases
  1. 64 km² of Great Britain £0.79
  2. 256 km² of Great Britain £2.99
  3. 1024 km² of Great Britain £9.99


  • Family Sharing

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

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