Comparison

WidgetCal vs Calendar Op.2

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

WidgetCal

View your weekly or monthly schedule directly on your Lock Screen without unlocking your device. This app displays events and reminders with customizable layouts, offering quick access to your personal occasions. It also integrates with other powerful calendar applications.

Highlights
  • Lock screen widget support
  • Weekly and monthly schedule views
  • Event and reminder display
  • Integration with AwesomeCalendar
  • Customizable font and size
  • ToDo carry over
  • Lunar calendar support
Features
Read full description

Full support iOS 14 widget! Do you still unlock your iPhone/iPad to check your schedule? Want to see weekly or monthly schedule in LockScreen? Here is the WidgetCal. This app shows weekly or monthly view for your events and reminders with a beautiful layout in Notification Center. Quick as a wink, you can access your personal occasions without hassle. Moreover, this widget seamlessly works with AwesomeCalendar, which is the most powerful calendar application in AppStore. It's for FREE. Just give it a try. +Display events and reminders in the Notification Center. +Week/Month view. +Navigate prev/next month. Tap 1st day of next month or last day of prev month. +Integrated with AwesomeCalendar. +Automatic and real-time update events and reminders. +Sunday/Monday start option. +Custom font and size. +ToDo carry over. +Visible calendars control. +Fade out past events. +Lunar calendar for Chinese and Korean. +Cute stickers on view. Some features listed above are available for a premium subscription. WidgetCal Premium is $3.99 USD per year (price may vary by location). The subscription will automatically renew at the end of each term and will be charged through your iTunes account within 24 hours of the end of the term. We offer 3 months free for WidgetCal Premium. Whenever you don’t want to pay or stop using Premium, you can manage your subscription in iTunes. Terms of use: http://wp.me/P1YDeW-rI Private policy: http://wp.me/P1YDeW-q3

About

Calendar Op.2

Organize your daily schedule with a clean and simple calendar app. It offers a beautiful month and list view with event titles, a mini pop-up for daily events, and seamless scrolling. Easily copy and paste events and search your schedule.

Highlights
  • 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
Features
Read full description

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.

Screenshots

WidgetCal4 screens
Calendar Op.24 screens

Verdict

The call

The clearest difference is rating: Calendar Op.2 at 4.7 against WidgetCal's 3.6. Calendar Op.2 also leads on review sentiment (69% vs 47%) and ratings volume (13K vs 1.5K). WidgetCal's advantage is iOS requirement (15.6 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. WidgetCal sells 10 in-app purchases, starting at $9.99 per year and Calendar Op.2 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Calendar Op.2 holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: Calendar Op.2 has 13K ratings behind it against 1.5K, so its average is the more settled of the two. Written reviews point the same way: 47% of WidgetCal's written reviews are positive against 69% of Calendar Op.2's.

UpkeepUpdate frequency

WidgetCal ships an update every 2 weeks, Calendar Op.2 weekly. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 6 level
WidgetCal versus Calendar Op.2: the parameters behind the verdict, then further details
ParameterWidgetCalCalendar Op.2
PriceFreeFree
Rating3.6 (1.5K ratings)4.7 (13K ratings) — better
Positive reviews47.4% of reviews68.5% of reviews — better
Number of ratings1.5K13K — better
Update frequencyEvery 2 weeksWeekly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.0
Further details — not scored
Size52 MB8 MB
Age rating4+4+
DeveloperYunaSoft Inc.Yoshihiro Sakamoto

Customer experience

WidgetCal

All ratings1,460 ratings
Positive61.1%
Neutral6.8%
Negative32.1%
Written reviews1,073 reviews
Positive47.4%
Neutral13.6%
Negative39.0%

Calendar Op.2

All ratings13,477 ratings
Positive92.1%
Neutral4.5%
Negative3.4%
Written reviews127 reviews
Positive68.5%
Neutral12.6%
Negative18.9%

User reviews

WidgetCal

From 1.5K App Store ratings

What we love

  • 📅 Great calendar app
  • 🔍 Detailed monthly view
  • 🎨 Customizable colors and fonts
  • 🔒 Syncs with Google Calendar
  • 🔧 Helpful stickers and emojis

Room to improve

  • 🤖 Ads disrupt user experience
  • 🔍 Limited color and theme options
  • 🐛 Glitches after iOS updates
  • 🗓️ Inability to scroll through months in widget
  • 🗓️ Disappearing/deleted calendar events

Calendar Op.2

From 13K App Store ratings

What we love

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

Room to improve

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

Bugs and requests

WidgetCal

Reported bugs

5 issues
  • Calendar events disappearing after updates
  • Widget not showing correct month or events
  • Inability to add or edit events in the app
  • Syncing issues with Google Calendar
  • Crashes and freezes after iOS updates

Requested features

5 requests
  • Allow more calendar customization options
  • Improve widget functionality and appearance
  • Provide an ad-free paid version
  • Enhance syncing with other calendar apps
  • Add a daily/weekly view in the widget

Calendar Op.2

Reported bugs

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

Requested features

6 requests
  • Add more color options
  • Implement landscape mode
  • Allow disabling of irrelevant holidays
  • Add support for Apple Watch
  • Improve event editing functionality
Show 1 more
  • Retain past event history

In-app purchases

10 purchases

WidgetCal

Subscriptions1
  • Premium Subscription3 Months trial$9.991 Year
One-time9
  • Religious holidays$0.99
  • Week Numbers$0.99
  • Moon Phases calendar$0.99
Show 6 more
  • Holidays United States$0.99
  • Calendars - Pro Football USA 2014-2015 edition$0.99
  • Calendars - Pro Baseball USA 2015 edition$0.99
  • Calendars - US Pro Basketball 2014-2015 edition$0.99
  • Weather calendars$1.99
  • Remove Advertisement$9.99
1 purchases

Calendar Op.2

One-time1
  • Remove Ads$5.99

Questions

Is WidgetCal free?
WidgetCal is free to download, with in-app purchases available.
Is Calendar Op.2 free?
Calendar Op.2 is free to download, with in-app purchases available.
Which has better reviews, WidgetCal or Calendar Op.2?
Calendar Op.2 is rated higher. WidgetCal averages 3.6 out of 5 from 1.5K ratings, while Calendar Op.2 averages 4.7 from 13K ratings.
Do WidgetCal or Calendar Op.2 have ads?
Both WidgetCal and Calendar Op.2 show ads.
Which is updated more often, WidgetCal or Calendar Op.2?
WidgetCal ships an update every 2 weeks, and Calendar Op.2 weekly. Most recently, WidgetCal was updated on November 6, 2026 and Calendar Op.2 on November 8, 2026.

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