Purrgress is in testing
Purrgress is being tested with a small group of fosters before it opens up more widely. If something is broken, confusing, or missing, say so: that is what this stage is for. The support page has the ways to get in touch, and there is a box there for suggesting features.
Anything that changes how the app works, what it costs, or what the terms say will be posted here, and the app will tell you when it is.