Comparison

iCalendar vs Calendars

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

Head to head
About

iCalendar

This app helps you manage your busy schedule with a user-friendly interface. Easily track daily, weekly, monthly, and yearly views, and color-code your events for better organization. It syncs with popular accounts and offers productivity tools for efficient event management.

Highlights
  • Daily, weekly, monthly, yearly views
  • Customizable event color-coding
  • Syncs with iCloud, Google, Exchange, Outlook, Yahoo!
  • Task manager with iOS Reminders sync
  • Drag and drop event rescheduling
  • Custom repeating events
  • Time zone support
Features
Currently charting
Read full description

** A MUST-HAVE CALENDAR APP FOR EVERY IPHONE, IPAD, AND IPOD **   iCalendar is the ultimate calendar for your iPhone, iPad and iPod Touch focusing on your productivity. It’s seamless, highly usable interface allows you to enter events quickly and helps you keep track of your busy schedule. It integrates with your iCloud, Google, Exchange, Outlook, or Yahoo! account to provide you with the most convenient calendaring experience.    EASILY TRACK YOUR SCHEDULE - View your daily, weekly, monthly, and yearly schedule. - Custom color-code your events. Use predefined colors, or make up your own colors. - iCalendar implements quickest way on the market to navigate between dates  - Fast and powerful search: Search events by title, location, and notes.    NEW IN VERSION 4.0 - Task Manager: Manage your tasks within your calendar in a fun and easy manner and sync with iOS Reminders. Available as in-app purchase for USD 0.99.   FULL OF PRODUCTIVITY TOOLS - Drag and drop an event to update its timing.  - Copy and paste events. - Create custom repeating events (e.g. repeat on the third Friday every month, and many more).  - Add custom alerts/reminders for events and snooze alerts - Access your event details quickly by tapping on the event.  - Customize the visible time period (e.g. from 9:00 AM – 5:00 PM) to help you focus on most important events.    EVEN MORE - Time Zone Support: View and create your events in your preferred time zone and never get confused when you travel.  - Complete print functionality. Print daily, weekly, monthly, and yearly views.  - Export any view (day, week, month, year) as a PDF file.  - Use built-in maps to set the location of your events.  - Dial into a conference call with one touch right from iCalendar. Add phone numbers from your contacts to events with the ability to use pause and wait, which is ideal for conference calls.  - Set location of an event as the address or phone number of one of your contacts.  - Access all your events directly from the Month view - no need to go to each individual day to review full list of events.  - Use the app icon badge to indicate either the number of upcoming events or the day of the month.  - Google Calendar sync: sync all of your calendars, create and edit Google Calendar events, and use Google Calendar custom reminders (SMS, email and/or alert). - Add, edit and delete calendars right from iCalendar.  - Support of portrait and landscape to match your orientation preference.  - iCalendar is a universal app. Download once and use across all your devices.  - For more details: http://www.symfonies.com/icalendar/   iCalendar offers access to interesting calendars from Calendar Store as an optional in-app purchase.  You may subscribe to your holidays calendar (national/religious) or subscribe to interesting calendars (e.g. local/global sports events, stocks, weather, and many others).   With an optional in-app purchase yearly subscription, you get full and ongoing access to the Calendar Store including (live) updates in your calendar. A subscription always starts with a one-month free trial, so you can try before you buy. One year subscriptions for the Calendar Store costs $1.99. Payment will be charged to your iTunes Account at confirmation of purchase and after the 1 month free trial. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current 1 year period. You can turn off auto-renew at any time from your iTunes account settings. Cancellation of the current active subscription period is not allowed.   Our terms of service and privacy policy are found at http://www.symfonies.com/terms-of-service/ and http://www.symfonies.com/privacy-policy/ respectively.   If you have a question, need help or would like to request a feature, please do not hesitate to contact us. We respond to EVERY email we receive: support@symfonies.com

About

Calendars

This app combines a calendar, task manager, daily planner, and habit tracker. It helps users plan their day, build habits, boost productivity, and stay organized with seamless syncing across all Apple devices. Features include event creation, to-do list management, natural language input, and integration with popular meeting platforms.

Highlights
  • Calendar, task, and habit management
  • Daily, weekly, and monthly views
  • Natural language event creation
  • To-do list organization
  • Cross-device syncing
  • Meeting platform integration
Features
Read full description

Calendars by Readdle is the all-in-one calendar, task manager, daily planner, and habit tracker — seamlessly working across all your Apple devices: Mac, iPhone, iPad, and Apple Watch. Plan your day, build better habits, boost productivity, and stay organized with powerful features and smooth sync between all your devices. What you can do with Calendars: • View and manage your calendar with daily, weekly, and monthly views • Create events, set reminders, and never miss important dates • Use the built-in agenda planner to focus on what matters most • Organize your to-do list and manage your tasks with ease • Quickly add events or to-do items using natural language • Build routines and track your habits to stay consistent • Take a guided productivity course to improve time management and focus • Sync across devices with Google Calendar, iCloud, and more • Customize your planner calendar with color coding and widgets • Join Zoom, Google Meet, or GoToMeeting directly from your calendar • Stay in control of your time, wherever you are Whether you're planning a busy workday, building new habits, or working on personal growth, Calendars brings everything together to help you own your time — across all your Apple devices. Privacy Policy: https://readdle.com/calendars/legal/privacy Terms of Service: https://readdle.com/calendars/legal/terms Have questions, comments, or issues? Don’t hesitate to reach out to us at http://readdle.com/contact

Screenshots

iCalendar1 screens
Calendars4 screens

Verdict

The call

The clearest difference is price: Calendars at Free against iCalendar's $2.99. Calendars also leads on update cadence (every 11 days vs every 3 months) and ratings volume (122K vs 5.3K). iCalendar's advantage is review sentiment (72% vs 55%) and iOS requirement (12.0 vs 18.2). On rating, ads, in-app purchases and monetization model 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

Calendars is free to download; iCalendar costs $2.99 up front. iCalendar sells 10 in-app purchases, starting at $1.99 per year and Calendars sells 17 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for iCalendar against 4.7 for Calendars. That said, the two scores are not equally well evidenced: Calendars has 122K ratings behind it against 5.3K, so its average is the more settled of the two. Written reviews are what separate them: 72% of iCalendar's written reviews are positive against 55% of Calendars's.

UpkeepUpdate frequency

iCalendar ships an update every 3 months, Calendars every 11 days. Both last shipped on September 24, 2026.

Scorecard5 real differences · 6 level
iCalendar versus Calendars: the parameters behind the verdict, then further details
ParameteriCalendarCalendars
Price$2.99Free — better
Rating4.7 (5.3K ratings)4.7 (122K ratings)
Positive reviews72.3% of reviews — better55.4% of reviews
Number of ratings5.3K122K — better
Update frequencyEvery 3 monthsEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#92 — better#104
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, Mac, Apple Watch
Requires iOS12.0 — better18.2
Further details — not scored
Size37 MB407 MB
Age rating4+4+
DeveloperSymfonies, Inc.Readdle Technologies Limited

Customer experience

iCalendar

All ratings5,339 ratings
Positive93.6%
Neutral2.9%
Negative3.5%
Written reviews390 reviews
Positive72.3%
Neutral8.5%
Negative19.2%

Calendars

All ratings121,639 ratings
Positive93.8%
Neutral3.1%
Negative3.1%
Written reviews1,247 reviews
Positive55.4%
Neutral8.9%
Negative35.7%

User reviews

iCalendar

From 5.3K App Store ratings

What we love

  • 💻 Excellent calendar app
  • 🎨 Customizable color coding
  • 📅 Comprehensive monthly view
  • 🗓️ Seamless syncing across devices
  • 🔍 Detailed event information

Room to improve

  • 🐛 Occasional data loss or sync issues
  • 🔍 Difficulty editing recurring events
  • 🔒 Concerns about security and privacy
  • 💰 Paid features that should be free
  • 🕰️ Inconsistent event time display

Calendars

From 122K App Store ratings

What we love

  • 🌟 Excellent calendar app
  • 👍 Easy to use and organize
  • 🎨 Helpful color-coding
  • 📆 Seamless integration with other calendars
  • 🗓️ Detailed monthly/weekly views

Room to improve

  • 🐛 Occasional glitches and data loss
  • 💰 Concerns over subscription model
  • 🕰️ Cumbersome date/time selection process
  • 🔍 Limited location search functionality
  • 🔄 Sync issues between devices

Bugs and requests

iCalendar

Reported bugs

4 issues
  • Events disappearing or not syncing properly
  • Inability to edit or update recurring events
  • Incorrect time and location information
  • Crashes or freezes when performing certain actions

Requested features

5 requests
  • Add ability to attach files to events
  • Improve widget functionality and visibility
  • Introduce family/group calendar sharing
  • Expand color palette and theming options
  • Add yearly view and better month-to-month navigation

Calendars

Reported bugs

3 issues
  • Disappearing events and appointments
  • Upgrade process causing data loss
  • Freezing and crashing on certain devices

Requested features

5 requests
  • Recurring events for free users
  • Customizable widgets and app icons
  • Ability to archive/restore past events
  • Improved Apple Watch integration
  • Shared calendars and family management

In-app purchases

10 purchases

iCalendar

Subscriptions1
  • Calendar Store1 Month trial$1.991 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
  • iOS Reminders$0.99
  • Calendars - Pro American Football Men United States 2015-2016 edition$0.99
  • Weather calendars$1.99
17 purchases

Calendars

Subscriptions8
  • Calendars PRO 1 Month$3.991 Month
  • Calendars by Readdle: Interesting Calendars1 Month trial$3.991 Year
  • Calendars PRO 1 Month7 Days trial$3.991 Month
Show 5 more
  • Calendars PRO 1 Year7 Days trial2 variants$19.991 Year
  • Calendars PRO 1 Year1 Year trial$19.991 Year
  • Calendars PRO 1 Year14 Days trial$19.991 Year
  • Calendars PRO 1 Year7 Days trial$21.991 Year
  • Calendars PRO 1 Year7 Days trial$29.991 Year
One-time9
  • Calendars PRO LifetimeFree
  • Invites & Attendees Upgrade$1.99
  • Smart Input Upgrade$1.99
Show 6 more
  • Full Upgrade$4.99
  • Interesting Calendars$5.99
  • My schedule planner, Organizer$6.99
  • Full Pack$12.99
  • Reminders & Calendars$19.99
  • Recurring Events$31.99

Questions

Is iCalendar free?
iCalendar costs $2.99, and also offers in-app purchases.
Is Calendars free?
Calendars is free to download, with in-app purchases available.
Which has better reviews, iCalendar or Calendars?
iCalendar and Calendars are both rated 4.7 out of 5 on the App Store, from 5.3K and 122K ratings respectively.
Do iCalendar or Calendars have ads?
Neither iCalendar nor Calendars shows ads.
Which is updated more often, iCalendar or Calendars?
iCalendar ships an update every 3 months, and Calendars every 11 days. Most recently, iCalendar was updated on September 24, 2026 and Calendars on September 24, 2026.
Which is more popular, iCalendar or Calendars?
iCalendar currently peaks at #92 in the App Store charts, and Calendars at #104. Chart position reflects recent download velocity rather than total install base.

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