I have this app and DayOne, Ive tried a couple of others. I am not a natural journaler however this works for me, and if I want to I can go over the days moments and write up a journal entry in DayOne adding more depth.
Would I like to sync with my iPad or Mac, sure but I havent chosen to upgrade to the subscription maybe because I rather like the limitations as they keep me using it to record moments that mean something.
Phil-n-Alice about Momento: Private Journal Diary, v3.4.7