Tsuzuroku: Focus & Study Timer
Pomodoro & daily habit tracker
Only for iPhone
Free · In‑App Purchases
iPhone
No subscription, ever. Track study time, build streaks, stay focused — Pomodoro, calendar & routines, free for up to 5 tasks.
Build the proof that you kept going.
Log your study and work sessions one by one, and watch your effort
become visible. Every time the streak graph turns greener, you'll
notice the person who keeps showing up — you.
Tsuzuroku means "keep a record of continuing."
▼ Great for
・Students preparing for exams or qualifications who want to track study hours
・Anyone who wants to keep their effort as something they can see
・People who focus better with the Pomodoro technique
・Those who like to run their daily routine in a set flow
▼ How it works
Create a task, then just press Start. Press finish, and your session
is saved automatically. Look back on when, what, and how long you
worked through the calendar and timeline views. You can add or subtract
time manually, so migrating your past records is easy too.
▼ Main features
◎ Two timer modes
Choose between a focus-and-break cycle and a stopwatch. Work and break
lengths are fully adjustable, so you can build a rhythm of focus and rest
that fits you — Pomodoro style or open-ended.
◎ Calendar & streak graph
See your good days at a glance. The more time you put in, the deeper each
day is colored, so your streak becomes proof you can feel. Look back by
day, week, month, or year with bar graphs.
(Month and year views unlock with Premium.)
◎ Timeline view
A 24-hour timeline shows when, on which task, and how long you worked,
all in one list. You can edit your records right here.
◎ Routines
For when you want to run several tasks in a set order. Choose between
two break styles — breaks between tasks, or breaks at fixed times.
Rotation is supported too.
◎ Notes
Jot down a free note for the day. For things you want to remember, or
to look back on later.
◎ Lock Screen & Dynamic Island
Live Activity supported. Check your timer and do basic controls right
from the Lock Screen.
◎ Background customization
Set a solid background from 18 traditional Japanese colors, or use your
own favorite photo. Make your space your own.
◎ Goals
Set target times by day, week, month, or year. Hit them and a star
appears on your calendar.
(Unlocks with Premium.)
▼ Free vs Premium
Everything you need to track your time is free (up to 5 tasks).
Premium is a one-time purchase — no subscription — that unlocks:
・Unlimited tasks
・Month and year calendar views
・Goals by day, week, month, and year
・All 18 theme colors (6 in the free version)
One payment. No recurring charges, ever.
▼ Contact
If you have any questions or requests, feel free to reach out.
tomoshibi402@gmail.com
Tomoshibi project
Planning & Development: Tomoshibi
Released by: naruhiko yanagibashi
Operations: Fururu
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
We've improved a display issue on the task list screen, along with some other small refinements.
Thank you for continuing to use Tsuzuroku!
The developer, naruhiko yanagibashi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- naruhiko yanagibashi
- Size
- 4.6 MB
- Category
- Productivity
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- つづろくプレミアム $2.99
- Copyright
- © 2026 Tomoshibi project