Weeklet – Week Number
52 weeks, well spent
Free
A week number is a serial number that identifies each week of the year with a single number. It comes in handy when you plan schedules and track project progress week by week.
Weeklet shows the current week number clearly on your Home Screen and Lock Screen.
Open the app to instantly browse weekly calendars of the current and upcoming weeks.
Widgets can also be shown in StandBy.
- Widgets in both Home Screen and Lock Screen
- Browse calendars by week
- Quickly check week numbers for other dates
- Shows the remaining days of the week and the remaining weeks of the year graphically
- Follows your settings “Calendar” and “First day of week” on Settings app
- Supports Light and Dark Mode
- Works with Apple Watch
You can also:
- Show years and quarters based on your fiscal year
- Set your fiscal year’s start and label style
- Choose the calendar used to calculate week numbers
- Choose the start and end days of your workweek
If you have feedback, feel free to contact us at the support page.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Now on Apple Watch
- See week numbers in a watch-native style
- Show them as a widget
- Always place them on the watch face
Choose how week numbers are calculated
- Pick the calendar from Gregorian or ISO 8601
Set your fiscal year’s start and label
- Specify the month the fiscal year begins
- Label it by the start year, end year, or both
Other updates
- Improved visual style
The developer, Hiroaki Matsuno, 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
- Hiroaki Matsuno
- Size
- 12.7 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later. - Apple Vision
Requires visionOS 26.0 or later. - Apple Watch
Requires watchOS 26.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2025-2026 Hiroaki Matsuno