MomentDiary...
Is deceptively simple but really quite elegant. I am using it to track my familys medical events, and taking quick notes as the doctor changes meds, as well as various work-related important dates. The hash-tag system allows me to ask for just the log that I need at that moment (like in the doctors office). I am very pleased with it, thank you very much.
Goldstarfish about
Moment Diary (journal), v2.2.2