If you are using android phone, check Loop Habit Tracker, which is FOSS and available on F-Droid (and Google-Play, too?). It is beautiful (imho) and I've been using it for years already. You can export/backup data easily, but I never cared enough to process it any further. After some initial on and off's I am really using it for keeping quite a lot of stuff like supplements, treadmill, meditation, exercise, some do's (like morning walk) and dont's (like white bread). At this point I use it with fun, systematically, not rigidly.