I like Keet. In my opinion, it's the best way to transfer files between computers.

I prefer SimpleX for communication on my phone. My opinion is biased though. I have been unable to update the keet app because the Aurora Store broke. I'm a CalyxOS nerd. Graphene OS nerds can't download it either.

We can download SimpleX on f-droid.

Keet says they will open source it in the future, but I think this gives the Network Effect advantage to SimpleX. The privacy nerds promote these types of communication protocols because they're locked out of the app stores. The Apple nerds can use SimpleX too.

That's why I think most bitcoin nerds will converge on Simplex, because it has the largest potential reach.

I still use Keet on Linux, but mobile communication is more convenient. But who knows, maybe Kim Kardashian starts using Keet and all my models are destroyed.