I'm the app's author. We are thinking about letting users create their profiles in the app. That would be "practice material" for users without Facebook accounts.
Another option would be using the address book on the phone.
I think I would be more likely to sign up if the page included a short example of an "exercise in practising compassion". As it stands, I don't have any idea of what this app actually does.
Agreed with crntaylor, it seems like some form of status sharing application but I don't really have a clue.
Please make the "how it works" more prominent. I like the proffered benefit, "practice compassion", but the two screenshots don't really communicate what the product is or how it works.
Alright, then I'll be upfront : I find it really creepy.