Apps · Android · v1.0WhenTimer
When did I last do that? Tap once and see how long it's been.
Changed the bedsheets, replaced the HVAC filter, called Mom, descaled the kettle: anything you do every so often, without a fixed schedule.
Free for 15 trackers, with ads. Pro unlock $3.99, once.
What it does
- Offline
- No account
- Widgets
- Android
Log it in one tap
Tap ✓ on a tracker or a home-screen widget to log done now, with Undo. Add past entries in one go when you create a tracker.
See how long it's been
A big, clear number: Today, Yesterday, 3 days, 2 wk 3 d, 4 mo 1 wk. Your last date and average gap for every tracker.
Forgot to log it?
Did it on… any past date, with an optional time and note. Edit or delete any entry.
Soft targets, no streaks
An optional target, like about every 2 weeks, colors a tracker when it's due. No streaks, no guilt, no confetti.
Gentle reminders
Optional per tracker: one alert when it's time again, with Did it and Snooze in the notification, and an optional Sunday summary.
Private by design
Works offline. No account and no sign-up. Categories, history and search. Back up to a file at no cost.
A look inside
Free, or Pro once
Holds 15 trackers with unlimited entries, and a small ad on the home screen. Resizable single-tracker widgets with a ✓ button. Optional short videos: watch one to add one more tracker slot (up to 5 extra) or try every Pro feature for 24 hours. It's always your choice.
One-time purchase, no subscription. Unlimited trackers, no ads, a list widget with several trackers (most overdue first), a gap chart and yearly totals, CSV export, app lock and extra accent colors.
Free for 15 trackers, with ads. Pro unlock $3.99, once.
Private by design
Your trackers and history stay on your phone. There is no account and no server of ours. Android's own backup can copy your data to your Google account. The free version shows ads from Google AdMob, which uses your device's advertising ID. Pro removes ads.
Questions
How is WhenTimer different from a to-do app?
It's for things you do every so often without a fixed schedule. Instead of due dates, it shows how long it's been since you last did each thing, plus your average gap.
Does it have streaks?
No. WhenTimer is calm by design: no streaks, no guilt, no confetti. You can add an optional soft target, like about every two weeks.
Can I log something I forgot to record?
Yes. Use Did it on… to pick any past date, with an optional time and note.
Is it a subscription?
No. The free version holds 15 trackers with a small ad. Pro is a one-time $3.99 unlock.
Related guides
- How Often to Replace Common Household Items
Replacement intervals for toothbrushes, contact lens cases, mascara, sunscreen, filters, smoke and CO alarms and car seats, from the ADA, CDC, FDA, NFPA and more.
- Home Maintenance Checklist: Monthly, Seasonal and Yearly Jobs
A home maintenance checklist sorted by how often each job comes up, with intervals from ENERGY STAR, the DOE, NFPA and the U.S. Fire Administration.