I recently discovered SmartTube Next for Android TV to get an ad free experience and integrated Sponsorblock on my Nvidia Shield TV.
I found NewPipe for my phone but I don’t see a way to connect my YouTube account to it and I guess I need to import my subs manually every time I change something.
So I’m wondering if there is an alternative YouTube app that is blocking ads (and ideally integrates Sponsorblock) for my smartphone and has the ability to connect my YouTube account like SmartTube Next does?
Correction: GrayJay is not foss
You’re technically correct, if I recall they decided to release it under an alternative license after seeing other FOSS YouTube clients like NewPipe being forked, loaded with ads and then put on the Play Store. This gives FUTO the option of pursuing legal action if bad actors attempt to do the same with their app. However, it is free and the source code is viewable.