# Calendar Op.2: Planner & Diary — Aesthetic Planner & Diary

> Simple and easy-to-use calendar application for organizing daily schedules. (iPhone/iPad app by Yoshihiro Sakamoto.)

- Source: https://appshunter.io/ios/app/calendar-op2-planner-and-diary/id1097430896 (this page in markdown: same URL + `.md`)
- Developer: [Yoshihiro Sakamoto](https://appshunter.io/developer/6779044478)
- Category: Productivity, Lifestyle
- Price: Free with in-app purchases
- Rating: 4.70/5 from 13,330 App Store ratings · 122 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 8 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean
- Released: 2017-04-22
- Data updated: 2026-09-07
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calendar-op2-planner-and-diary/id1097430896/reviews.md

## What is Calendar Op.2?

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.

## Key features

- Works with built-in iOS calendar
- Month & list view with event title
- Mini pop-up for daily events
- Seamless vertical scrolling
- Copy & Paste for events
- Incremental search view

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


## What do users think of Calendar Op.2?

Overall sentiment: positive

**Pros**

- 👍 Easy to use
- 🚀 Efficient calendar view
- 💡 Customizable color coding
- 🔒 Secure and private
- 🌟 Great alternative to default calendar

**Cons**

- 🐛 Issues with date/day synchronization
- 🔍 Limited color options
- 📱 No iPad version
- 🕰️ Can't schedule in 15-minute intervals
- 🔔 Ads can be intrusive

**Commonly reported bugs**

- Events disappearing from past months
- Time zone issues when traveling
- Inability to edit event details

**Most requested features**

- Add more color options
- Implement landscape mode
- Allow disabling of irrelevant holidays
- Add support for Apple Watch
- Improve event editing functionality
- Retain past event history

## Recent user reviews (10 of 122)

All indexed reviews: https://appshunter.io/ios/app/calendar-op2-planner-and-diary/id1097430896/reviews.md

### 3/5 — Long time user but buggy now

*2026-08-27, version 2.2.1*

Oh, I’ve enjoyed using this for a long time. Recently though I found that I can’t open links from event details and sometimes I can’t add alerts either. It’s gotten a little buggier.

### 4/5 — Please bring back custom alert times

*2026-08-25, version 2.2.1*

Really like this app and have used it for years. But I wish you would bring back the option to set a custom alert time for individual events. I used that so often depending on the event and the timing of it. The standard ones now do not always meet my needs. I hope that will come back!

### 5/5 — Not good

*2026-07-23, version 2.2.1*

Was really good till the last update. It wiped out my entire calendar so now I have to start all over again. Never updating it again

### 5/5 — Best

*2026-06-21, version 2.2.1*

This is the best calendar for me. Easy to use. Like the colors available to use for family and events. You can keep it easy or add additional.

### 5/5 — calendar

*2026-06-18, version 2.2.1*

the best calendar app ever!

### 5/5 — calendar

*2026-06-11, version 2.1.0*

the best calendar app! better than iPhone!

### 5/5 — My go to phone calendar

*2026-06-10, version 2.0.3*

I have been using this calendar for years and never
let me down. The format works better for my viewing for schedules.

### 5/5 — LOVE!!!!!!

*2026-06-04, version 2.0.2*

I love my calendar! It’s so easy & has so many options to personalize!!!!

### 5/5 — The best ever

*2026-06-03, version 2.0.0*

This calendar is all I need. Very organized and keeps me on track.

### 4/5 — Needed

*2026-06-02, version 2.0.0*

Appointment Sharing, critical to be able to share calendar appts with others!

## Frequently asked questions about Calendar Op.2

### What does Calendar Op.2 do?

Calendar Op.2 is a simple and easy-to-use calendar application designed to help you organize your daily schedule. It features a clean user interface and essential tools for managing your events smoothly.

### What are the key features of Calendar Op.2?

Key features include seamless integration with the built-in iOS calendar, beautiful month and list views with event titles, a mini pop-up window for daily events, and the ability to copy and paste events. It also offers incremental search and vertical scrolling.

### How does Calendar Op.2 sync with other calendars?

This app syncs with iCloud, Google Calendar, and other services by utilizing the built-in iOS calendar functionality. Your events will be accessible across these platforms.

### Is Calendar Op.2 free to use?

The application is free to download and use, but it does offer in-app purchases. It also includes advertisements.

### Who is Calendar Op.2 designed for?

This app is for anyone who appreciates a simple and uncluttered approach to managing their schedule. It's ideal for individuals who love a simple life and want an efficient way to organize their daily events.

## Version history (last 5 releases)

### 2.5 — 2026-09-06

NEW: Split View on iPad shows the month and the list side by side

- On iPad, the new Split View shows the month on the left and the list on the right at the same time. Use the buttons at the bottom left to switch between Month, Split, and List. Tap a day in the month to jump the list to that day, and drag the divider to adjust the widths.
- Fixed an issue where ads could reappear for customers who had purchased Remove Ads when the device was offline or in a region where the app is not currently available.


From the previous update (V2.2.0):

You can now choose the design of the month shown in the top-left corner, and even restore the classic design from V1.9 and earlier. Pick it in Settings, under "Month title style", previewing each design as it will look.

This update also overhauled how Calendar Op.2 handles your privacy and advertising consent, as we resumed distribution across EU countries. To comply with EU privacy rules (GDPR), in applicable regions nothing is collected until you decide.

- Where consent applies (EEA and UK), you can review, change, or withdraw your consent for personalized ads anytime in Settings, under "Privacy Settings".
- If you decline, no analytics data is collected and ads are shown non-personalized.
- Added lunar calendar display (in Settings, under Almanac).
- Calendar Op.2 is now available in Korean.
- Plus minor bug fixes and stability improvements.

Thank you for using Calendar Op.2!

### 2.2.1 — 2026-06-17

NEW: Set a custom interval for your default alert

The default alert that's automatically added to new events can now use any interval you like. In Settings, under Default alert, choose any number of minutes, hours, or days (before or after), including options the fixed list never offered, such as "90 minutes before" or "3 days before".

Note: this applies to the default alert for new events. In the individual event editor, alerts still offer the standard options only.


From the previous update (V2.2.0):

You can now choose the design of the month shown in the top-left corner, and even restore the classic design from V1.9 and earlier. Pick it in Settings, under "Month title style", previewing each design as it will look.

This update also overhauled how Calendar Op.2 handles your privacy and advertising consent, as we resumed distribution across EU countries. To comply with EU privacy rules (GDPR), in applicable regions nothing is collected until you decide.

- Where consent applies (EEA and UK), you can review, change, or withdraw your consent for personalized ads anytime in Settings, under "Privacy Settings".
- If you decline, no analytics data is collected and ads are shown non-personalized.
- Added lunar calendar display (in Settings, under Almanac).
- Calendar Op.2 is now available in Korean.
- Plus minor bug fixes and stability improvements.

Thank you for using Calendar Op.2!

### 2.2.0 — 2026-06-12

NEW: Choose your month title design — including the classic look

By popular request, you can now choose the design of the month shown in the top-left corner. You can even restore the classic design from the earlier version (V1.9). Pick it in Settings → "Month title style", previewing each design exactly as it will look.


This update also overhauls how Calendar Op.2 handles your privacy and advertising consent.

The change comes as we resume distribution across EU countries: to comply with EU privacy rules (GDPR), your choices are now fully respected, and in applicable regions, nothing is collected until you decide.

- Where consent applies (EEA & UK), you can review, change, or withdraw your consent for personalized ads anytime in Settings, under "Privacy Settings".
- If you decline, no analytics data is collected and ads are shown non-personalized.
- Added lunar calendar display (choose it under Settings → Almanac).
- Calendar Op.2 is now available in Korean.
- Plus minor bug fixes and stability improvements.

Thank you for using Calendar Op.2!

### 2.1.0 — 2026-06-10

Rokuyo is now supported.

Rokuyo is a six-day cycle from the traditional Japanese calendar (Sensho, Tomobiki, Senbu, Butsumetsu, Taian, Shakko), still widely used in Japan to mark auspicious and inauspicious days — Taian is regarded as the most fortunate and Butsumetsu the least.

You can show it in the Month view, the List view, and the day detail.

- Turn on "Show rokuyo (Japanese almanac)" in Settings. Month View and List View can be set independently.
- Minor bug fixes and stability improvements.

Thank you for using Calendar Op.2!

### 2.0.3 — 2026-06-07

By popular demand, we've brought back support for iOS 18, so the app can run on a wider range of devices.

- Minor bug fixes and stability improvements.

---
What's new in version 2.0

- Full iPad support.
- Optimized layouts for larger screens.
- Improved multitasking support on iPad.
- Native iOS event viewing and editing.
- Performance and usability improvements.

Requires iOS 18 or later.

Thank you for using Calendar Op.2!

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*