WhenWas

When did you last water the plants, change the air filter, or call Mom? WhenWas remembers for you — tap once to check in, and always know how long it's been.

WhenWas is the simple "time since" tracker for all the little things that don't fit on a calendar. No due dates, no guilt, no streaks to break. Just a clean list of the things you care about and exactly how long it's been since you last did them.

NEW — SHARE ACTIVITIES WITH FAMILY & FRIENDS
Now you can track things together. Invite anyone to a shared activity — everyone sees the latest check-in and anyone can reset it, kept in sync in real time across all devices. Perfect for households: who fed the dog, when the litter box was cleaned, when the sheets were changed. No more "did you already do it?" texts.

PERFECT FOR TRACKING
• Home care — watering plants, changing filters, cleaning gutters
• Pets — flea treatment, grooming, vet visits, feeding
• Health — haircuts, dentist visits, contact lens changes, medication refills
• Relationships — calling parents, date nights, catching up with friends
• Car & maintenance — oil changes, tire rotation, battery swaps
• Anything else you keep asking yourself "when did I last...?"

HOW IT WORKS
1. Add an activity once
2. Tap to check in whenever you do it
3. See exactly how many days, weeks, or months it's been

Every check-in is saved to a timeline, so you can look back at your full history — with optional notes for context ("used the heavy-duty filter this time").

KEY FEATURES
• One-tap check-ins — resetting a timer takes a second
• Timeline history — every past check-in, at a glance
• Shared activities — track together with family and friends, synced live
• Siri & Shortcuts — "When did I last water the plants?" hands-free
• Apple Watch app — view and check in right from your wrist
• Home Screen widgets — see your timers without opening the app
• Reminders — get a gentle nudge when it's been too long
• Search & filter — find any activity instantly
• Dark mode — easy on the eyes, day or night
• Private by design — your data lives on your device and in your personal iCloud, never on our servers

FREE & PRO
WhenWas is free to use with up to 5 activities, timeline history, Siri, and the Apple Watch app. Upgrade to Pro to unlock:
• Unlimited activities
• Sharing with family and friends
• Custom reminders
• Pinned activities
• Home Screen widgets
• Notes on every check-in
• iCloud sync across all your devices

Life is full of things that need doing again — but not on a schedule. Download WhenWas and never wonder "when was the last time...?" again.