Archive unmaintained repository

[rugk]

You can archive this repository, to mark it as unmaintained. People then cannot submit PRs and there is a big warning that this is archived.
Remember to add a note to the Readme before to explain that it is unmaintained, and – if you think this is useful – why and probably mention alternatives.

[ThomasHabets]

I'll check with the team that owns the Play Store version if they object, otherwise yes.

Note that only the open source version is unmaintained.