Install OsMoDroid is easy.
Application size: ~3 MB
For its operation OsMoDroid needs the following rights:
In the latest versions of Android, you can restrict the app's permissions to the permissions you don't need. This should not disrupt the application, but may limit the functionality.
If you have a device that is not "clean" Android (XIaomi, Meizu, Sony, etc.), you may need additional settings to ensure that the system does not limit the background operation of the application, otherwise the application may not work when the screen is off or not work at all.