For diary purposes, I’d suggest DayOne for iOS/Android and Journaley, a compatible program for PC. Journaley is free and open-source; DayOne is not (though I’m sure someone has an APK somewhere).
Source:
almost 2 years ago
There’s even an unofficial open-source PC version of DayOne called Journaley. Apparently, there was also an old version called Day One Classic (but other than the old iOS version on my iOS 7 iPad going by that name, and an import option within Day One, I don’t have any more info on it).
Source:
about 3 years ago