Calendar Op.2 Downloads & RevenueCalendar Op.2: Planner & Diary · App Store
Not in any tracked top chart right now.
Updated 2 Nov 2026 · rankings refresh through the day
DeveloperYoshihiro Sakamoto
CategoryProductivity
PriceFree
Released
Rating★ 4.7 (13k)
Version3.0.1
Age rating4+
First seen by us
12 Oct 2026
12 Oct 2026Calendar Op.2: Planner & Diary update history & changes
Last change · 5 events since 22 Apr 2017Full timeline ↓📦Updated to version 3.0.1📦Updated to version 3.0🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 5 events
- 📦Calendar Op.2: Planner & Diary updated to version 3.0.1V3.0.1 fixes
- Minor bug fixes for iOS 27.1.
What was new in V3.0
Full support for iPhone Duo
- On the large inner display, use Split View with the month and the list side by side, just like on iPad. Drag the divider to adjust the panes.
- On the folded outer display, the app works with its usual iPhone layout, and switches automatically as you open and close the device.
- When the device is half open, the Split View divider moves to the fold by itself.
- Support for the new vertical bar in iOS 27.1: depending on orientation and posture, the buttons move to a column at the side of the screen.
iOS 27.1 support
- The whole app has been tuned for the latest iOS 27.1.
Refreshed for the Liquid Glass design
- The buttons in the top and bottom bars are now Liquid Glass buttons. Month, Split and List form one group, with the current view shown as a blue circle.
- The day pop-up header has been refined: the weekday is shown in a lighter colour, with Sunday in red and Saturday in blue, and the + and × buttons are now round glass buttons.
Thank you for using Calendar Op.2!… more - 📦Calendar Op.2: Planner & Diary updated to version 3.0MAJOR UPDATE: Calendar Op.2 is now V3.0
Full support for iPhone Duo
- On the large inner display, use Split View with the month and the list side by side, just like on iPad. Drag the divider to adjust the panes.
- On the folded outer display, the app works with its usual iPhone layout, and switches automatically as you open and close the device.
- When the device is half open, the Split View divider moves to the fold by itself.
- Support for the new vertical bar in iOS 27.1: depending on orientation and posture, the buttons move to a column at the side of the screen.
iOS 27.1 support
- The whole app has been tuned for the latest iOS 27.1.
Refreshed for the Liquid Glass design
- The buttons in the top and bottom bars are now Liquid Glass buttons. Month, Split and List form one group, with the current view shown as a blue circle.
- The day pop-up header has been refined: the weekday is shown in a lighter colour, with Sunday in red and Saturday in blue, and the + and × buttons are now round glass buttons.
Thank you for using Calendar Op.2!… more - 🆕Calendar Op.2: Planner & Diary first spotted by AppInsiderUnited States (found via search)
- 📦Calendar Op.2: Planner & Diary version 2.7NEW: Custom alerts are back, as "Alert Options"
- Custom alerts, requested by many of you, are back as the new Alert Options feature. Besides the usual presets such as "15 minutes before", you can choose "Morning of the event (9:00 AM)" or "Evening before (9:00 PM)", or set any number of minutes, hours, or days, and add several alerts to one event.
- Open it from the alert icon at the top of the event details screen. Each alert also shows the exact date and time it will fire.
- New: Alert Sets. Save a combination of alerts you use often under a name, and apply it to an event with one tap.
- Note: because of a limitation of the standard iOS event editor, Alert Options is not available while creating or editing an event. It is available from the details screen of an event that has already been added.
Other improvements
- Stability improvements, including crash fixes.
Thank you for using Calendar Op.2!… more - 🆕Calendar Op.2: Planner & Diary released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.7 ★
13k ratings
Measured
Calendar Op.2: Planner & Diary on the App Store
App details
App ID
1097430896
Publisher
Yoshihiro Sakamoto
On the store since
Apr 2017
9 years on the store
Minimum OS
iOS 26.0+
iPhone 11 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
5
EN FR DE JA KO
Size
8 MB
Also listed in
Lifestyle
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.7 ★
13k ratings
Measured
Ratings
13k
Measured
About Calendar Op.2: Planner & Diary
Calendar Op.2 [opus two] is a very simple and easy-to-use calendar application designed for everyone who loves simple life. With its clean user interface and carefully selected feature set, you can organize your daily schedule smoother than ever.
FEATURES:
● Works with built-in iOS calendar.
● Beautiful month & list view with event title.
● Mini pop-up window for daily events.
● Seamless vertical scrolling to the previous and next month.
● Copy & Paste for events.
● Incremental search view.
● Syncing with iCloud, Google Calendar, etc. via built-in iOS calendar.
FEATURES:
● Works with built-in iOS calendar.
● Beautiful month & list view with event title.
● Mini pop-up window for daily events.
● Seamless vertical scrolling to the previous and next month.
● Copy & Paste for events.
● Incremental search view.
● Syncing with iCloud, Google Calendar, etc. via built-in iOS calendar.
Latest updates
3.0.1
V3.0.1 fixes
- Minor bug fixes for iOS 27.1.
What was new in V3.0
Full support for iPhone Duo
- On the large inner display, use Split View with the month and the list side by side, just like on iPad. Drag the divider to adjust the panes.
- On the folded outer display, the app works with its usual iPhone layout, and switches automatically as you open and close the device.
- When the device is half open, the Split View divider moves to the fold by itself.
- Support for the new vertical bar in iOS 27.1: depending on orientation and posture, the buttons move to a column at the side of the screen.
iOS 27.1 support
- The whole app has been tuned for the latest iOS 27.1.
Refreshed for the Liquid Glass design
- The buttons in the top and bottom bars are now Liquid Glass buttons. Month, Split and List form one group, with the current view shown as a blue circle.
- The day pop-up header has been refined: the weekday is shown in a lighter colour, with Sunday in red and Saturday in blue, and the + and × buttons are now round glass buttons.
Thank you for using Calendar Op.2!
3.0
MAJOR UPDATE: Calendar Op.2 is now V3.0
Full support for iPhone Duo
- On the large inner display, use Split View with the month and the list side by side, just like on iPad. Drag the divider to adjust the panes.
- On the folded outer display, the app works with its usual iPhone layout, and switches automatically as you open and close the device.
- When the device is half open, the Split View divider moves to the fold by itself.
- Support for the new vertical bar in iOS 27.1: depending on orientation and posture, the buttons move to a column at the side of the screen.
iOS 27.1 support
- The whole app has been tuned for the latest iOS 27.1.
Refreshed for the Liquid Glass design
- The buttons in the top and bottom bars are now Liquid Glass buttons. Month, Split and List form one group, with the current view shown as a blue circle.
- The day pop-up header has been refined: the weekday is shown in a lighter colour, with Sunday in red and Saturday in blue, and the + and × buttons are now round glass buttons.
Thank you for using Calendar Op.2!
2.7
NEW: Custom alerts are back, as "Alert Options"
- Custom alerts, requested by many of you, are back as the new Alert Options feature. Besides the usual presets such as "15 minutes before", you can choose "Morning of the event (9:00 AM)" or "Evening before (9:00 PM)", or set any number of minutes, hours, or days, and add several alerts to one event.
- Open it from the alert icon at the top of the event details screen. Each alert also shows the exact date and time it will fire.
- New: Alert Sets. Save a combination of alerts you use often under a name, and apply it to an event with one tap.
- Note: because of a limitation of the standard iOS event editor, Alert Options is not available while creating or editing an event. It is available from the details screen of an event that has already been added.
Other improvements
- Stability improvements, including crash fixes.
Thank you for using Calendar Op.2!