It’s free for unlimited user?

I used one signal, and it became too expensive, then I change to webpushr but I have actually 40k user and only 3 000 real active user and no possibility to delete fake user.

Then do your plugin have an option to delete user who never open push notification?

And when I change from one signal to webpushr, webpushr have an option to retrieve users from one signal, do you do the same?

Thanks