Mathew Brown

C2K is Now on Google Play

Back in June I published C2K to F-Droid and explained why I wasn't bothering with Google Play - I run GrapheneOS, don't have Play Services installed, and F-Droid's reproducible builds are a better trust model than a binary I upload myself.

All of that is still true. But most people running Android don't use F-Droid, and I'd rather more people have a decent, honest Couch to 5K app than make a point about distribution channels. So C2K is now on Google Play too.

What's different

Nothing that matters. The play build is the same source, same features, same permissions as the F-Droid foss build — the only difference is which key signs it, since F-Droid insists on signing builds itself and Play requires me to sign mine. No ads SDK, no analytics, no crash reporting, no billing library. It still doesn't request the INTERNET permission, because it still doesn't need it.

If you enable GPS for distance and pace, that data stays on your device. Nothing phones home.

Getting it

If you can use F-Droid, I'd still point you there first - it's the version you don't have to trust me on. But if Play is what you've already got open, C2K works exactly the same way there.