the terms from other countries seem much better, “pathostream” (which i’d translate to “psychostream” to get the message across) or “rotstream”.

well what are your criteria? Asking for advice without saying what you need isn’t tremendously useful and, as has happened, mostly just results in people recommending whatever they personally use for whatever reasons.

delta absolutely needs an account though, it’s literally email

IA?

you can always just host your own fdroid repo, there’s nothing magical about it and it’s trivial for users to add it to their client.