SinceWhen: Event Log & Tracker

History of your last time.

Stop guessing when you last did something. One tap logs any event so you can track your life with zero friction.

Download on the App Store

Free · iPhone & iPad · iOS 17.6+

Unlike habit trackers that push daily streaks, SinceWhen is built for irregular life events: oil changes, haircuts, medication, exercise. Log what you did with one tap; the app handles the rest.

One-tap logging

Tap an event to log it. No forms, no friction.

Smart insights

Automatic interval calculations and monthly trends.

Home screen widgets

Log from your home screen without opening the app.

Private by design

No accounts or tracking. Data stays on your device.

SinceWhen Pro

Track 3 events free. Unlock unlimited.

Launch offer

$4.99

One-time, no subscription.

Unlimited events
iCloud sync across devices
Full CSV/JSON export

Ready to stop guessing?

Download SinceWhen free on the App Store.

Get SinceWhen