About Subsurface Maps Offline
Subsurface Maps Offline is an app that allows SubsurfaceMaps.com users to download their maps from the cloud to their Android phone or tablet for use offline. Using this app you can view and edit your maps without the...
Subsurface Maps Offline is an app that allows SubsurfaceMaps.com users to download their maps from the cloud to their Android phone or tablet for use offline. Using this app you can view and edit your maps without the need for an internet connection. The app has a built in interface with Radiodetection equipment for recording depth when you mark new points. The app also allows you to take pictures, directly connect to a Bluetooth GPS/GNSS devices (no need for mock locations), and then upload all of your changes to the SubsurfaceMaps.com server for everyone else on your team to view.
The regular browser-based application is still the flagship product where you must go to create layers, change colors, modify your field layout, draw lines, etc. The offline app is a less functional version that allows you to do basic data collection and viewing offline.
How it works
1. If you haven't done so already, create an account at SubsurfaceMaps.com and setup your map with the desired layers, data fields, colors, and symbols.
2. Install this app on your tablet or phone.
3. Enter your subsurfacemaps.com user name and password into the app
4. Select which map(s) you want to download to your phone/tablet.
5. Open your map, view it, make changes, add new points, etc.
6. When you are ready to upload your changes click Menu, then click Offline Maps, then click the 'Sync' button next to your map name. This will upload your edits and download any changes that others have made.
Previous Versions
Here you can find the changelog of Subsurface Maps Offline since it was posted on our website on 2020-08-21 09:04:09.
The latest version is 26.3.16.2 and it was updated on 2026-06-11 12:18:26. See below the changes in each version.
Subsurface Maps Offline version 26.3.16.2
Updated At: 2026-03-16
Changes: Bug Fixes
Subsurface Maps Offline version 25.11.17.2
Updated At: 2025-11-17
Changes: New Locator Interface
Subsurface Maps Offline version 25.3.5.2
Updated At: 2025-03-05
Changes: This release introduces layer grouping, the ability to delete a feature, and bug fixes.
Subsurface Maps Offline version 24.4.23.2
Updated At: 2024-04-23
Changes: This release of Subsurface Maps has improvements in Synching, Logging, and the Trace tool.
Subsurface Maps Offline version 24.1.18.1
Updated At: 2024-01-18
Changes: "Move To GPS" functionality added in this version along with more robust error checking when uploading map changes.
Subsurface Maps Offline version 23.11.18.1
Updated At: 2023-11-18
Changes: NTrip Client added
Subsurface Maps Offline version 23.2.9.2
Updated At: 2023-02-08
Changes: Improved Syncing with better failure recovery
Subsurface Maps Offline version 2.22.1.20
Updated At: 2022-01-20
Changes: This new version contains new Pole Height and GPS Datum options plus a more detailed accuracy display.
Subsurface Maps Offline version 2.10.16.1
Updated At: 2020-10-16
Changes: Version 2.10.16.1 with new Layer List
Subsurface Maps Offline version 2.8.28.1
Updated At: 2020-08-28
Changes: Version 2.8.28.1 with support for more GPS metadata.
Disclaimer
Official Google Play Link
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