# Timer Door - For Study & Work > Track work or study hours, tag projects, and send PDF invoices, on your device. Canonical page: [https://chrome-stats.com/d/com.numdoor.timer](https://chrome-stats.com/d/com.numdoor.timer) ## Overview - **ID:** `com.numdoor.timer` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Numdoor - **Category:** PRODUCTIVITY - **Downloads:** 29 - **Version:** 1.7.1 - **Last updated:** 2026-09-13 - **First published:** 2026-08-06 - **Publisher country:** EG - **Size:** 39 MB - **Data as of:** 2026-09-15 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.numdoor.timer) - **Website:** [https://numdoor.com](https://numdoor.com/) - **Privacy policy:** [https://numdoor.com/en/timer-door-privacy.html](https://numdoor.com/en/timer-door-privacy.html) ## Description Timer Door turns the hours you work into invoices you can send, or, in Study
mode, into a study habit you can see. No account, no sign-up, no subscription.

Tap Start when you begin, Pause when you step away, End when you're done. Only
the time you actually worked gets recorded.


THE TIMER
• Start, pause, resume, end, and a quick-start button that restarts your last
project in one tap
• Start or stop the clock straight from any project's row
• Breaks are excluded: pausing stops the clock
• Count to the second, or round each session up to the whole minute
• Work past midnight and the session splits itself across both days, so each
day's total stays honest
• The running clock stays in the top bar on every screen


POMODORO AND FOCUS
• Pomodoro blocks (25/5 or your own), with a ring around the button that
drains as the block runs down
• A break alert you can hear: sound and vibration, five tones, and it arrives
even with the app closed
• Focus mode: the clock and nothing else, on pure black (easy on AMOLED
screens and the battery), in portrait or landscape


PROJECTS AND CLIENTS
• Every project sits under its client, on one screen
• Give each project a name, an icon (120 to choose from), a colour and an
hourly rate
• Earnings are worked out as you go
• Filter the whole app down to one project
• Save clients with their address and tax details, ready to drop into an
invoice


YOUR HISTORY
• Browse this week, this month or last month, by week, day, then session
• Add a session by hand if you forgot to start the timer, with a note
• Edit or delete anything; a corrected entry re-splits at midnight


INVOICES
• A proper A4 PDF, ready to send or print
• Invoice numbers increment themselves
• Line descriptions are written for you and stay editable
• Optionally attach a day-by-day breakdown of every hour billed
• Bill one project or everything in a date range
• Print the invoice in English or Arabic, whichever your client reads


STUDY MODE
• Studying rather than billing? Pick Study on first launch or in Settings:
the same app in a student's words: subjects, topics, study sessions, and no
money anywhere
• A Progress tab in place of invoices: this week against last, your study
streak, daily and weekly goal rings, a goal per subject, and a month
calendar
• After each session, rate it with a face and note what you got done
• Switch between Work and Study any time; each mode keeps its own records,
and nothing is ever deleted


REMINDERS
• A daily reminder at the time you choose, only on days with no session yet
• Off by default; turn it on in Settings


ENGLISH AND ARABIC
• The whole app in either language, right-to-left included
• Switch at any time; it stays free


YOUR DATA STAYS YOURS
• Everything you track lives on your device
• No account, no sign-up
• We have no servers, so your work is never sent to us. A Google Drive
backup goes to your own Drive, not ours


FREE, AND PRO
Timer Door is free, with ads, and one client and one project to work with,
or three subjects with three topics each in Study mode.

Timer Door Pro is a one-time purchase, not a subscription, and adds:
• Unlimited clients and projects, and subjects and topics
• No ads
• Insights: your best hours, busiest day, streak, this month against last,
your best-paying client, a level that grows with every hour, and charts by
day, week, client and project
• Export to CSV for your accountant, and import it back
• Save a backup as a single file and keep it wherever you like; restoring
merges it back in and never deletes anything
• Back up to your own Google Drive, with an automatic daily backup that
survives uninstall
• 12 theme colours and dark mode
• Invoices without the "Created with Timer Door" footer

You can also watch a short ad to try Pro for two days.


MAKE IT YOURS
• Set your own currency symbol
• Pick your date format


Questions or feedback? Open the menu and tap "Get in touch".

From numdoor. ## Rankings - #2,466,289 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.FOREGROUND_SERVICE` - `android.permission.FOREGROUND_SERVICE_SHORT_SERVICE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.AD_ID` - `com.numdoor.timer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [Pomodoro Timer: Work & Study](https://chrome-stats.com/d/com.gauravsingh.pomodoro) — 335 users - [Timer Vent Tag High](https://chrome-stats.com/d/com.opera.ivory.jungle.fly) — 2 users - [Timer Owl Ear Kind](https://chrome-stats.com/d/com.timer.owl.ear.kind) — 11 users - [Timer – Countdown](https://chrome-stats.com/d/com.javierlabs.temporizador) — 54 users - [Focus Timer for Study & Work](https://chrome-stats.com/d/org.textdev.pomodoro) — 7,321 users - [Pomodoro Timer Pro Focus](https://chrome-stats.com/d/com.pomodoro.timerpro) - [StudyClock: Study Timer Alarm](https://chrome-stats.com/d/com.studyclock.study_clock) — 1,744 users - [Deskmate](https://chrome-stats.com/d/jp.deskmate) — 84 users - [Study Timer](https://chrome-stats.com/d/com.focuslab.studytimer.productivity.session) — 12 users - [Timer Pale Urn Cedar](https://chrome-stats.com/d/com.fern.flora.care) — 6 users - [Study Timer](https://chrome-stats.com/d/com.appswale.studytimer) — 9 users - [Pomodo - Focus Timer & Tasks](https://chrome-stats.com/d/com.rubixscript.pomodo) — 513 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.numdoor.timer)