A time tracker you can use instead of your clock app

Using alarms every day?Keep the record, too.

Every alarm and timer becomes a record. The time you spend on sleep, workouts, and study builds up naturally in this iPhone time tracker.

  • No account
  • Records stay on device
  • Custom timers

Coming soon to the App Store

Cotumo home screen with summary cards and timers for sleep, work, study, workouts, and reading
Cotumo screen counting down an active study session

Don't just measure it

Still guessing where your time goes?

Time measured in a clock app disappears the moment you stop. Cotumo records your time every time you use an alarm or timer, and keeps your days in one place to look back on.

Nothing is kept

You use alarms and timers every day, but the time you measured disappears right away.

Too much input

Using a separate tracking app alongside your clock makes keeping records a burden.

No sense of balance

Without knowing how many hours go to sleep, work, and exercise, it's hard to notice what's off.

How it works

Choose, track, look back.

One record flows naturally from tracking into reflection.

  1. Choose

    Use sleep and workout timers, or create your own for work, reading, study, or anything else.

  2. Track

    From a wake-up alarm to a goal-time timer, everything from start to finish becomes a record.

  3. Review

    See your averages, how they compare with last week, your calendar, and your time breakdown whenever you need them.

More than one way to see the same record

Your alarms and timers become a daily log.

Keep what matters on your home screen.

Put frequent timers and useful summaries side by side. Colors and icons make the next action easy to find.

Cotumo home screen showing summary cards and color-coded timers

See the days you showed up.

Records appear as colors on the calendar. View every timer together, or focus on a single activity.

Cotumo calendar screen showing daily records as colored dots

Switch between change and breakdown.

Trends show your averages and how they compare with the previous period. The breakdown shows where your time went. Review by day, week, month, or year.

Cotumo analysis screen showing a month's time breakdown in a donut chart
Cotumo analysis screen showing a month of records in a line chart

See it without opening the app.

Show the summaries you care about in a Home Screen widget. While tracking, the time remaining appears on the Lock Screen and in the Dynamic Island.

iPhone Home Screen with a Cotumo widget showing sleep and study summaries, and the time remaining in the Dynamic Island
iPhone Lock Screen with a Cotumo Live Activity showing the time remaining and end time for a study session

Sample data

One month, seen as a whole.

From sleep to work, study, reading, and workouts, different parts of your time share one clear view.

  • Sleep232h 44m
  • Work173h 46m
  • Study31h 57m
  • Reading9h 5m
  • Workout8h 41m

Screens and figures use sample data to demonstrate the app.

Cotumo analysis screen showing a month's time breakdown in a donut chart

Privacy

Your records stay on your device.

No account is required. Records and settings, including timer names, stay on your device and are not sent to the developer's servers.

Anonymous usage data is sent only if you allow it. It never includes timer names or record contents, and you can stop sharing anytime in Settings.

Read the full privacy policy

Common questions

Before you get started.

What can I track?

Alongside sleep and workouts, you can create color-coded timers for work, study, reading, creative time, or anything else.

Can I correct a record later?

Yes. Add, edit, or delete records from the calendar and analysis screens.

Do I need an account?

No. You can start using Cotumo immediately, with your records stored on your device.

Can I stop sharing usage data?

Yes. Sharing is your choice, and you can change it anytime in Settings.

Cotumo

Know where your time goes, and plan tomorrow differently.

We are finishing the last steps before Cotumo arrives on the App Store.

Coming soon to the App Store