---
title: "Calendar Op.2 - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "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 ca"
---

# Calendar Op.2 — United States
> Handy simple calendar

![Calendar Op.2 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/98/32/c5/9832c5e3-5a24-a5d0-a9db-5f8c0babf71e/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Yui Sakamoto](https://apptail.io/developer/yui-sakamoto-yyZb)
**Category:** Productivity
**Rating:** 4.7/5 (12,911 ratings)
**Price:** Free
**Bundle ID:** com.elnistudio.calendar
**Store:** Apple App Store
**Country:** United States
**Version:** 1.9.2 (released 2025-12-30)
**Original Release:** 2017-04-22
**Languages:** English, French, German, Japanese

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1097430896)
**AppTail Page:** [https://apptail.io/app/calendar-op2-XUi/united-states](https://apptail.io/app/calendar-op2-XUi/united-states)

## Calendar Op.2 Description
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.

## Calendar Op.2 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/77/70/4b/77704bf4-5915-cff9-400f-d8238e4e82b2/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/4b/8e/cb/4b8ecb09-baaf-4002-4ed7-a0e1955a084a/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/2c/0b/e4/2c0be456-23fa-3cf9-6ae9-df4ef6760620/pr_source.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/c3/1e/69/c31e6950-a68e-479f-797e-29da8d0fb734/pr_source.png/1242x2688.png)

## Calendar Op.2 Rating Breakdown in United States
- 5 stars: 10,275 (80%)
- 4 stars: 1,661 (13%)
- 3 stars: 564 (4%)
- 2 stars: 156 (1%)
- 1 stars: 255 (2%)

## Calendar Op.2 Reviews in United States

### ***-- "Great App but adds an issue"
this works very well and is a great addition to do just a little more than the Apple calendar. I think the app is perfect and when I get an app with ads, I accept that as part of the deal. however, the ad types tend to be the Temu ads with large breasted women, which I avoid. as great as this app is, if that type of ad continues to pop up on my screen, I will be deleting it… or buying the paid version
-- sd-4$;75&, 2025-01-02

### ***** "Annie"
Es muy práctico
-- Betsylian, 2024-12-30

### ****- "I love the app, but I would love an update"
I use this app often but would love if there’s an update that allows users to make more than 1 reminder to each event. So make it able to do 3 reminders, instead of 1. Just something I think would be very helpful for me and I would definitely use it.
-- sloveland97, 2024-05-22

### ***-- "Ads"
I generally enjoy it, but pop-up ads have been showing up on the calendar, a line across about a week or week and a half.. it’s really annoying.
-- bywerefgy, 2024-02-03

### ***** "Giddy"
So far, I’m just giddy with excitement about this calendar. I never used the calendar on my phone cuz I just hated it. I downloaded this, and I am excited to put my whole life into it. I love that I can look at it at a glance and see everything going on for the month. Also love all the color coding. Perfect amount of customization without a bunch of app purchases. Thank you!
-- SweetAddiction76, 2024-01-25

### ***** "App"
I love this app. It shows what on my schedule at a glance.  Unfortunately when my phone updated and I most likely pushed the wrong button all my dates and appointments when to the iPhone calendar.  This one is much better.
-- green 7890, 2024-01-09

### ***** "@peanut_barber"
Muy útil 👍👍👍🫡🫡🫡
-- peanut_barber, 2024-01-01

### ***-- "Stopped holding schedules"
Worked great for awhile until it stopped keeping my scheduled dates. It deleted them all and stopped showing them which is why I needed it in the first place. A real bummer because I really liked this app.
-- Airestofheads13, 2023-12-26

### ***** "Notifications…I had notifications prior, now all my info is blank"
How do I get an alarm/reminders
-- Sis Elsie, 2023-12-25

### *---- "Antisemitic"
This app removed all the Jewish holidays
-- Nickhzksmdvzk, 2023-12-24

### *---- "Lost my entire calendar"
Not sure what happened but my calendar blanked out. I lost every appointment , birthday, event, everything.
-- Zippy the Wonder Snail, 2023-12-22

### *---- "Everything wiped"
All my events are wiped and I can’t view new events I make so there’s no sense in keeping it. The new update screwed it all up. I even tried what they told another reviewer to change dark mode into light mode and it still made no difference so obviously they don’t know how to fix it. Don’t waste your time putting important info in the app. Would give stars for the headache
-- c20a12a, 2023-12-10

### **--- "Events disappeared"
I’ve used this calendar for my business and personal schedule for quite a few years. All of a sudden *everything is gone. All events erased. Going into settings does nothing. I will need to move on to something else.
-- DbbePllps, 2023-12-04

### *---- "Very upset"
This new update wiped my whole calendar clean of important dates. I have to now figure out what is going on and when. I am extremely upset! I lost alot of very important information! Ugh!!!!!
-- Im out of nicknames to use, 2023-11-27

### *---- "All Entries Gone After Update!"
Worked fine for years until last update. Now ALL entries in calendar are completely gone. App is worthless until it is fixed.
-- Eval4U, 2023-11-26

### **--- "All Entries are Gone!"
I’ve been using this app for years but now all of my entries are gone. Please fix!
-- Kristin00003, 2023-11-24

### *---- "No data"
After latest update all my calendar entries are gone and I can’t find out how to fix it.
-- Gullible123, 2023-11-22

### *---- "gone!!"
as in everything! opened calendar yesterday as was cool .. opened today EVERYTHING IS GONE!!!! 
i know it's free but thanks for nothing!!!!!
-- jfkilbi, 2023-11-21

### *---- "It was good..."
Used this app for years, now it keeps jumping my dates all over. I've reached out to the support through Facebook. But now help. Probably have to change to something else.
-- Gincom1, 2023-11-10

### ****- "Day mode"
Ability to move different appointments up and down the day mode by holding the appointment and just moving it up to the time slot you need to have it add. Currently you have to open up the appointment change the times then receive it.
-- intl traveler, 2023-08-19

[View all Calendar Op.2 reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Calendar Op.2 In-App Purchases
| Item | Price |
|------|-------|
| Remove Ads | $4.99 |


## Calendar Op.2 Discovered Keywords
- calendar color picker
- one calendar
- ios calendar
- fillable calendar
- yui
- simpletable
- calendar op2
- android calendar
- year calendar
- calendar events

## Apps Similar to Calendar Op.2
- [PocketLife Calendar](https://apptail.io/app/pocketlife-calendar-Jv/united-states)
- [Vantage Calendar](https://apptail.io/app/vantage-calendar-vqe/united-states)
- [カレンダーZ](https://apptail.io/app/z-bDh/united-states)
- [Pocket Informant](https://apptail.io/app/pocket-informant-OSj/united-states)
- [Seamless Calendar - Planner](https://apptail.io/app/seamless-calendar-planner-Rpm/united-states)
- [Calendar Widget & Planner](https://apptail.io/app/calendar-widget-planner-WHI/united-states)
- [Awesome Calendar 2](https://apptail.io/app/awesome-calendar-2-UJI/united-states)
- [One Calendar](https://apptail.io/app/one-calendar-YJI/united-states)
- [Simple Calendar - SimpleCal](https://apptail.io/app/simple-calendar-simplecal-HjO/united-states)
- [Awesome Calendar Lite](https://apptail.io/app/awesome-calendar-lite-hyob/united-states)

## Calendar Op.2 Available In
- [United States](https://apptail.io/app/calendar-op2-XUi/united-states)
- [Japan](https://apptail.io/app/calendar-op2-XUi/japan)
- [Switzerland](https://apptail.io/app/calendar-op2-XUi/switzerland)
- [United Kingdom](https://apptail.io/app/calendar-op2-XUi/united-kingdom)
- [Canada](https://apptail.io/app/calendar-op2-XUi/canada)
- [Australia](https://apptail.io/app/calendar-op2-XUi/australia)
- [Thailand](https://apptail.io/app/calendar-op2-XUi/thailand)
- [Hong Kong SAR China](https://apptail.io/app/calendar-op2-XUi/hong-kong)
- [India](https://apptail.io/app/calendar-op2-XUi/india)
- [Mexico](https://apptail.io/app/calendar-op2-XUi/mexico)
- [Singapore](https://apptail.io/app/calendar-op2-XUi/singapore)
- [Israel](https://apptail.io/app/calendar-op2-XUi/israel)
- [Taiwan](https://apptail.io/app/calendar-op2-XUi/taiwan)
- [Egypt](https://apptail.io/app/calendar-op2-XUi/egypt)
- [Philippines](https://apptail.io/app/calendar-op2-XUi/philippines)
- [China](https://apptail.io/app/calendar-op2-XUi/china)
- [Vietnam](https://apptail.io/app/calendar-op2-XUi/vietnam)
- [Uganda](https://apptail.io/app/calendar-op2-XUi/uganda)
- [Brazil](https://apptail.io/app/calendar-op2-XUi/brazil)
- [Saudi Arabia](https://apptail.io/app/calendar-op2-XUi/saudi-arabia)
- [United Arab Emirates](https://apptail.io/app/calendar-op2-XUi/united-arab-emirates)
- [Macao SAR China](https://apptail.io/app/calendar-op2-XUi/macau)
- [Norway](https://apptail.io/app/calendar-op2-XUi/norway)
- [Peru](https://apptail.io/app/calendar-op2-XUi/peru)
- [Qatar](https://apptail.io/app/calendar-op2-XUi/qatar)
- [Russia](https://apptail.io/app/calendar-op2-XUi/russia)
- [Türkiye](https://apptail.io/app/calendar-op2-XUi/turkey)
- [Indonesia](https://apptail.io/app/calendar-op2-XUi/indonesia)
- [Angola](https://apptail.io/app/calendar-op2-XUi/angola)
- [Jamaica](https://apptail.io/app/calendar-op2-XUi/jamaica)
- [Jordan](https://apptail.io/app/calendar-op2-XUi/jordan)
- [Kuwait](https://apptail.io/app/calendar-op2-XUi/kuwait)
- [Lebanon](https://apptail.io/app/calendar-op2-XUi/lebanon)
- [Mali](https://apptail.io/app/calendar-op2-XUi/mali)
- [South Africa](https://apptail.io/app/calendar-op2-XUi/south-africa)
- [Armenia](https://apptail.io/app/calendar-op2-XUi/armenia)
- [Argentina](https://apptail.io/app/calendar-op2-XUi/argentina)
- [Azerbaijan](https://apptail.io/app/calendar-op2-XUi/azerbaijan)
- [Bahrain](https://apptail.io/app/calendar-op2-XUi/bahrain)
- [Brunei](https://apptail.io/app/calendar-op2-XUi/brunei)
- [Belarus](https://apptail.io/app/calendar-op2-XUi/belarus)
- [Chile](https://apptail.io/app/calendar-op2-XUi/chile)
- [Colombia](https://apptail.io/app/calendar-op2-XUi/colombia)
- [Dominican Republic](https://apptail.io/app/calendar-op2-XUi/dominican-republic)
- [Algeria](https://apptail.io/app/calendar-op2-XUi/algeria)
- [Ecuador](https://apptail.io/app/calendar-op2-XUi/ecuador)
- [Iceland](https://apptail.io/app/calendar-op2-XUi/iceland)
- [Kazakhstan](https://apptail.io/app/calendar-op2-XUi/kazakhstan)
- [Sri Lanka](https://apptail.io/app/calendar-op2-XUi/sri-lanka)
- [Madagascar](https://apptail.io/app/calendar-op2-XUi/madagascar)
- [Malaysia](https://apptail.io/app/calendar-op2-XUi/malaysia)
- [Nigeria](https://apptail.io/app/calendar-op2-XUi/nigeria)
- [Nepal](https://apptail.io/app/calendar-op2-XUi/nepal)
- [New Zealand](https://apptail.io/app/calendar-op2-XUi/new-zealand)
- [Pakistan](https://apptail.io/app/calendar-op2-XUi/pakistan)
- [Tunisia](https://apptail.io/app/calendar-op2-XUi/tunisia)
- [Ukraine](https://apptail.io/app/calendar-op2-XUi/ukraine)
- [Uzbekistan](https://apptail.io/app/calendar-op2-XUi/uzbekistan)
- [Germany](https://apptail.io/app/calendar-op2-XUi/germany)

---

## About AppTail

[AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io)
- [Top Charts](https://apptail.io/top-iphone-apps)
- [Sign Up for Full Access](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*