Is there an app where you can watch all episodes and new episodes immediately from Aot? Doesn't matter whether with or without a subscription. It would be best if it worked on the Ps4 with subtitles. Looked at Crunchyroll but it's not there.
Wakanim
Anime on Demand has the first 3 seasons, I don't know whether the browser on the ps4 supports it and there's also Wakanim, which offers the 4th season. I mean it is also available as an app for ps4
Crunchyroll only has a US license.
Seasons 1 to 3, the spin-off and the films are available from https://www.anime-on-demand.de/...k+on+Titan, but there's no app for them. So you have to look at it in your web browser.
Season 4 is currently running at https://www.wakanim.tv/...nal-season and also has an app.
Simple answer:
Look at Wakanim, DOT.