Accoding to F-Droid build service, it says ProtonVPN depends entirely on non-free network services, which means:
“This Anti-Feature is applied to apps that promote or depend entirely on a Non-Free network service which is impossible, or not easy to replace. Replacement requires changes to the app or service. This antifeature would not apply, if there is a simple configuration option that allows pointing the app to a running instance of an alternative, publicly available, self-hostable, free software server solution.”
Compared to RiseUpVPN source code which has zero anti-features
Accoding to F-Droid build service, it says ProtonVPN depends entirely on non-free network services, which means:
“This Anti-Feature is applied to apps that promote or depend entirely on a Non-Free network service which is impossible, or not easy to replace. Replacement requires changes to the app or service. This antifeature would not apply, if there is a simple configuration option that allows pointing the app to a running instance of an alternative, publicly available, self-hostable, free software server solution.”
Compared to RiseUpVPN source code which has zero anti-features