About
We’ve all stood in front of the mirror and wondered: "Wait, has it been four weeks since my last haircut, or six?"
Your brain isn’t built to juggle dozens of overlapping, irregular timelines, from getting a haircut, to changing the AC filter, to following up with that one dormant client.
You try to use a habit tracker, but they demand daily "streaks" and punish you with red calendars for tasks you only do occasionally. They turn life maintenance into a guilt trip.
SinceWhen is an offline tracker built entirely differently. It skips the streaks and just answers one simple question: "When did I last do that?"
How it works in practice:
You get your haircut and tap the SinceWhen widget on your iOS Home Screen. You don't even open the app. SinceWhen quietly calculates your true average rhythm. In exactly five weeks, it sends a gentle, offline nudge to your lock screen. You tap the notification, log it, and go about your day.
No streaks to break. No mental math.
Built natively on SwiftData, your timeline stays 100% private and offline. And because we hate utility subscriptions, SinceWhen is free to try, with a single, honest, one-time purchase for unlimited access.
Stop trying to remember everything. Let your Home Screen do the math for you.