Maybe I'm not doing something right, but I don't seem to be able to save the notes and entries I've made unless I "quit" Osmo. On occasion, I've lost a lot of appointments because, e.g., I hadn't quit for a week or two and we had a power outage. I think it'd be very useful to have a "Save Data NOW" button. There may be one already, but I haven't found it.
Great program, otherwise.