The free version is useless, cause it puts the main feature behind a pay wall.

The basic playlist extension in the sidebar is no longer showing for me.
Edit: I tried disabling every extension I have and disabled and enabled PocketTube, but no change.

Workarounds for YouTube's terrible, constantly devolving UI always result in someone trying to cash in with something that automates things you can already do, just with more ease of use. The first thing I tried to do was move some watch later videos to a different playlist, so I clicked the checkboxes for the videos, then I clicked on the Save to Playlist button and nothing happened. I thought it was broken. What actually happens is tiny blue 'JOIN' text shows up in the bottom left corner that is extremely easy to miss if your sidebar menu is visible, which mine is, so it overlaps with stuff and makes it look cluttered before disappearing in a couple seconds.

Two actually functional things are the ability to delete videos from playlists in one click with the trash can button, and deleting a group of videos by selecting them, pressing the remove button, then confirming. Useful if you're really bad at removing videos from playlists, but a marginal convenience otherwise. Neither function works from a playlist sidebar when the YouTube player is visible, only from the playlist page.

Maybe it's better if you pay $3 a month/$30 a year, but I have no idea if it actually works, as YouTube breaks these things as often as they come out and I can't test it without paying, and even if it did, I can't really justify paying for saving a few extra clicks.

As a developer, I support Paywall, but Pocket Tube fails in the clarity of its limitations. I am a Contributor (subscriber via Firefox) and NONE of my Groups/Subgroups are synchronized on Google Chrome (extension) or the Android app. This is unacceptable. I will maintain the subscription for now, awaiting the developer's justification regarding this synchronization failure. If the limitation is confirmed, I will cancel and change the rating to 1 star. If it is due to my poor configuration, I will retract and adjust the rating.

I just wanted something that would allow me to move multiple videos to different playlists. Sadly, this feature is paywalled. It also has many other features, which may be useful to you, but not for me.

iThis could be really great, but I don't see what we can do with the basic features.
The presentation video is different from what we find.
And the price of $3/month is way too expensive.
Especially if we can't test if it works beforehand. If it's about giving your credit card only to cancel afterwards, it's a practice that I don't appreciate.

But good luck to the developer anyway.

Would be better if it had a way to auto put videos from the sub box into your playlist as soon as there uploaded. Such as setting one or more channels to an playlist and any video they upload go right into the playlist.