WhenDid

Log life's little moments in seconds, spot useful patterns, and keep every detail private on your device.

When did you last wash the car, play tennis, go to the gym, water the plants, call family, or have coffee?

WhenDid gives everyday moments a simple timeline. Create a tracker for anything worth remembering, log it in seconds, and add a date, time, intensity, or note whenever context matters.

SEE YOUR HISTORY CLEARLY • Review every occurrence in one place • Correct the date, time, intensity, or note at any time • Explore timelines, monthly frequency, and typical gaps • Archive old trackers without losing their history

SPOT RECURRING PATTERNS After enough history is available, WhenDid estimates when a recurring event may happen next. Forecasts use only your own on-device history and include a reliability signal and estimated time window. They are pattern estimates, never certainties.

PRIVATE BY DEFAULT • No account • No ads or analytics • No cloud service or internet dependency • Your tracker content stays on your device unless you export or share it

OWN YOUR DATA Export a readable JSON backup whenever you like. Restore it later with validated import, edit or delete individual entries, or erase all WhenDid data from Settings.

WhenDid is a memory and lifestyle tool. Its forecasts are not medical advice and should not be used for diagnosis, treatment, emergencies, or safety-critical decisions.