Yay, someone mentioned the name. As a non-native speaker, I wasn't sure whether the ambiguity really works - glad to hear it does, at least for one other person.

Actually, there is no limit on how much you allocate, even 25h works (yes, might be considered a bug). But that's not the idea. The app is meant to help balance things that pull you in and eat your time without you noticing against those that want you to come and get them actively and intentionally and would never call for you.

Edit: ... and those things usually sum up to much less than 24h, because sleep is in neither category (at least for me); I mean, it does pull you in, but it also lets you go when it's time. :-)