iOS: https://apps.apple.com/app/id1335347860
Android: https://play.google.com/store/apps/details?id=com.matoph.moo...
Moodistory has a CSV import feature which lets you import any mood data you may already have. So no matter, if you're coming from any other app and want to give it a try, use the CSV import and see if you like Moodistory for yourself.
One more note about privacy: All data stays on your device - there's no central cloud storage or server that keeps your data. Only if you activate iCloud / Google Drive backups, then data backups are stored on YOUR iCloud / Google Drive. That's why there is literally no sign up necessary.
Since I'm always looking for ways to improve my app, I'll be more than happy to discuss here or directly via hello@moodistory.com
Happy tracking and all the best!
P.S. App is free to try.