WhenDid helps you remember when things happened. Create trackers, log occurrences with optional notes and intensity, and explore timelines, frequency, typical gaps, and on-device estimates.
Backup and restore
Open Settings in WhenDid to export or import a readable JSON backup. An imported backup replaces the current on-device data only after you confirm.
Get help
Need help or found a bug? Email support and include your device model, iOS version, and a short description of what happened when you can.
Privacy policy: WhenDid Privacy Policy.