First things first
Poor Developers is not a company. It is not incorporated, it is not for profit and it does not invoice. What we do, we do because we feel like it.
A donation is voluntary and entitles you to nothing: no product, no warranty, no support, and no promise that we will build what you ask for. If you expect any of that in return, do not donate.
That said: if something of ours has been useful to you and you feel like chipping in, it is genuinely appreciated. We do not need it to keep going, but it makes it cheaper.
We do not publish figures: keeping them current would be one more chore, and probably the first one we would stop doing.
Want us to build something that does not exist yet? Tell us. We promise nothing and set no deadlines, but we read everything and sometimes we say yes.