1. Check your current version
Before you begin, verify which version of Locus GIS you are currently using:
Menu → About app → App info
This helps you confirm whether the downgrade is necessary and which version you want to install.
2. Back up all your projects (very important!)
Downgrading requires uninstalling the current app, and uninstalling will delete all your projects and data.
To back up your projects:
Open Menu → Projects
Tap the project options
Choose Export as ZIP
Repeat this for all important projects.
Tip: Store the ZIP files somewhere safe (cloud storage, email, SD card).
3. Download the older APK
All previous versions of Locus GIS are available in our archive:
Download the APK file of the version you want to install.
4. Uninstall the current version
Go to your device settings and uninstall Locus GIS.
Warning: Uninstalling removes all local data - this is why the backup from step 2 is essential.
5. Install the downloaded APK
After uninstalling:
Open the downloaded APK file
Your device will likely ask you to allow installation from unknown sources
Enable the permission and continue with the installation
If you need help enabling this option, this video explains the process clearly: https://www.youtube.com/watch?v=oU5fqwaY9YA
6. Restore your projects
After installation:
Open Locus GIS
Go to Menu → Projects
Import your previously exported ZIP files
Your projects should now be restored and ready to use.