Calendar Op.2: Planner & Diary
Yoshihiro Sakamoto Productivity iPhoneiPadiPod touch
Calendar Op.2: Planner & Diary is a free Productivity app for iPhone and iPad by Yoshihiro Sakamoto. Rated 4.7/5 from 13,448 ratings. Requires iOS 26.0.
- Rating
- 4.7
- 13.4K ratings
- Price
- Free
- on the App Store
- Size
- 8 MB
- Age 4+
- Updated
- Sep 21
- 2026 · v2.7
Screenshots
About Calendar Op.2: Planner & Diary
Calendar Op.2 [opus two] is a very simple and easy-to-use calendar application designed for every people 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.
Ratings & reviews
4.7
13.4K ratings
What’s new
Version 2.7 · Updated September 21, 2026
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!
App privacy
The developer, Yoshihiro Sakamoto, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Advertising Data
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Advertising Data, Product Interaction, Other Usage Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Third-Party Advertising, Analytics
Alternatives to Calendar Op.2: Planner & Diary
Looking for apps like Calendar Op.2: Planner & Diary? Here are 6 similar apps on the App Store. The highest rated is sCalendar - Seamless Calendar (4.8/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Calendar Op.2: Planner & Diary | 4.7 / 5 (13,448 ratings) | Free | September 21, 2026 | |
| Awesome Calendar 2 | 4.6 / 5 (4,938) | Free | Nov 7, 2023 | Compare |
| sCalendar - Seamless Calendar | 4.8 / 5 (667) | Free | Oct 15, 2026 | Compare |
| PocketLife Calendar | 4.7 / 5 (41,669) | Free | Sep 18, 2026 | Compare |
| Vantage Calendar | 4.3 / 5 (1,820) | Free | Sep 10, 2024 | Compare |
| Awesome Calendar Lite | 4.0 / 5 (910) | Free | Sep 24, 2026 | Compare |
| Week Calendar - Smart Planner | 4.4 / 5 (10,341) | Free | Oct 1, 2026 | Compare |