# How to track your deep work hours on iPhone

> A simple way to log focused work on iPhone: decide what counts, time it with fixed or open-ended sessions, review the history weekly, and keep the numbers honest.

Published 2026-11-02 by ODEL.

To track deep work hours on iPhone, decide what counts as deep work, time only those sessions, and look at the total once a week. A paper log or the Notes app is enough to start. A timer app makes it easier because each session is logged automatically, and an open-ended mode lets you record long stretches without being cut off at 25 minutes. The number to watch is focused sessions completed, not hours at the desk.

## 1. Decide what counts

Deep work is demanding work done without interruption: writing, coding, studying, design, analysis. Email, meetings and admin do not count, even if they are useful. Write your own short list so you do not argue with yourself later.

## 2. Pick how you will time it

There are two styles, and many people use both:

- **Fixed sessions (Pomodoro).** Work for a set time, usually 25 minutes, then take a short break. Good for starting when you feel resistance, and for studying.
- **Open-ended sessions.** Start the timer and stop when you naturally finish. Good for writing or coding, where a forced break can cost you your train of thought.

## 3. Log every session

**Without an app:** keep a simple table in Notes or on paper with the date, start time, length and what you worked on. Add it up on Sunday. It takes discipline but costs nothing.

**With a timer app:** [Focus Timer](/app/focustimer) logs each session in a session activity history and shows progress tracking and achievements. Its Flow mode is an open-ended timer that keeps running until you end the session, and those sessions are logged too. Pomodoro sessions with scheduled breaks are there for the days when starting is the hard part. There is no daily limit on the timer.

To make logging automatic, remove the friction of starting:

- Add a Focus Timer widget to your Home Screen.
- Use the app icon's quick actions, or start a session with Siri or Spotlight.
- Attach the task you are working on, so the history shows what the time went into.

## 4. Protect the sessions you are measuring

Tracking is only useful if the sessions are real. Turn on an iPhone Focus to silence notifications while you work (see [how to stop notifications from breaking your sessions](/blog/silence-notifications-during-focus-sessions-on-iphone)). Some people focus better with background sound; Focus Timer includes ambient sounds, and you can leave them off.

## 5. Review once a week

At the end of each week, look at your history and ask three questions:

1. How many deep work sessions did I finish, and on which days?
2. What time of day did the longest ones happen?
3. What interrupted the days with none?

Then move one thing: protect your best time slot, or cut one recurring interruption. Small changes to when you work usually matter more than willpower.

## 6. Keep the numbers honest

- **Stop the timer when you stop working.** A session left running through lunch makes the log useless.
- **Do not chase a daily hour target at first.** Most people overestimate how much deep work they can do. Start with what you actually manage and grow from there.
- **Count finished sessions, not just minutes.** Ten finished 25-minute sessions say more than "six hours at the desk".

## Which tool should you use?

If you only want a weekly total, paper or Notes is fine. If you want sessions logged as you go, with widgets and shortcuts to start them, an app like Focus Timer saves the bookkeeping. If you also manage large projects with sub-tasks and want reports by project across Mac and Windows, Focus To-Do is built for that (see [Focus Timer vs Focus To-Do](/compare/focustimer-vs-focus-to-do)). For a wider list, see [the best Pomodoro timer apps for iPhone](/best/pomodoro-timer-apps-iphone).