Comparison

One Calendar vs Calendrier

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

Head to head
About

One Calendar

Consolidate all your digital calendars into a single, easy-to-read view. Manage appointments, events, and birthdays from various providers like Google, Outlook, iCloud, and more, all within one application.

Highlights
  • Integrates multiple calendar providers
  • Easy-to-read overview
  • Manage appointments and events
  • View birthdays
  • Cross-platform availability
Features
Read full description

The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Yahoo, Nextcloud, Synology, GMX, Mailbox.org, ownCloud and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your appointments, events and birthdays. OneCalendar is available on all platforms.

About

Calendrier

This app helps you manage your schedule by tracking events and appointments. It offers multiple calendar views to easily spot conflicts and free time, and allows for quick event creation with smart suggestions. You can also manage tasks alongside your events and share calendars with others.

Highlights
  • Multiple calendar views (month, week, day)
  • Task management alongside events
  • Quick event creation with smart suggestions
  • Calendar sharing
  • Appointment reminders
  • Collaborative scheduling
Features
Read full description

Calendar is a personal calendar app tracks events and appointments, allows multiple calendar views to quickly identify conflicts and free time. Never forget an appointment again with the app Simple Calendar. Get the official Calendar 2022 app, for your iphone phone and ipad to save time and make the most of every day. Simple Calendar is a great option that offers a simple way to keep track of all your important tasks and events. Features: • Different ways to view your calendar - Quickly switch between month, week, and day view. • Tasks - Create, manage, and view your tasks alongside your events in Calendar • Schedule meetings quickly by checking coworkers' availability or layering their calendars in a single view. • Quick event creation - Smart suggestions for event titles, places, and people save you time when creating events. • Share calendars so people see full event details or just if you are free Productivity: • Different ways to view your calendar : Quickly switch between month, week and day view. • To-do : Use Reminders to create and view to-dos alongside your events. • All your calendars in one place - Google Calendar works with all calendars on your phone, including Exchange. • Events from Gmail - Flight, hotel, concert, restaurant reservations and more gets added to your calendar automatically. Calendaring will contain one or more of the following features: Calendar – a calendar showing dates and days of the week. Address book – a list of contacts with information to enable the user to communicate with the contacts. Appointment attachments – Calendario allow users to attach a file to an appointment. Appointment calendar – a list of appointments and the attendees for the appointments. Appointment reminders – Automatically reminds participants of an upcoming meeting. Calendar publishing – some calendaring tools allow the user to publish select calendar information on a public link. Collaborative scheduling – the capability of the software to check schedules and propose meeting times to all of the participants. Group calendar – a calendar showing dates of groups. Multiple calendars – icalendar allows users to create separate calendars (i.e. work calendar, children school calendar). TickTick:To-Do List & Calendar TickTick is a powerful to-do & task management app with seamless cloud synchronization across all your devices. Pencil Planner & Calendar Pro Plan daily, weekly, monthly and yearly with this handwritten bullet journal, agenda, and diary. Calendars: Planner & Reminders Calendar 2022 works perfectly with Google Calendar and built-in iOS Calendar. Calendars supports everything you can find in Google Calendar: appointments, reminders and more. Sync is really fast and your information is always up to date. A Simple Habit Tracker Calendar helps you create healthy routines by helping you set goals, tracking your progress, and then motivating you with streaks/chains. Share Notes and Lists Keep track of your schedule and share it with others using Calendar. Create task lists with your most important to-dos reak down your tasks to subtasks Set a due date for every task to help you achieve your goals Multiple calendars for family, friends, personal, work etc Share a calendar and scheduling reate and edit events for all members. Set a different color for each member or activity. Chat and add photos as if you were using a messenger app for each event. In Today Calendar, you can alternate between different views very easily, moving between the daily, weekly, and monthly views with just a gesture on the screen. With Simple Calendar, you can add detailed events to each day, including vacation days, your contact's birthdays, as well as national holidays from many different countries. Never miss an event, forget an appointment, or be late to plans again with this app's easy to use features. Easily manage your work schedule and keep track of all your appointments with the clear, efficient app Simple Calendar.

Screenshots

One Calendar4 screens
Calendrier4 screens

Verdict

The call

The clearest difference is in-app purchases: Calendrier at none against One Calendar's 1. Calendrier also leads on review sentiment (100% vs 81%) and iOS requirement (13.4 vs 15.0). On price, update cadence, ads and device support 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. One Calendar sells 1 one-off in-app purchase. Calendrier asks for nothing beyond the download.

UpkeepUpdate frequency

One Calendar ships an update fortnightly, Calendrier every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
One Calendar versus Calendrier: the parameters behind the verdict, then further details
ParameterOne CalendarCalendrier
PriceFreeFree
Rating4.8 (21K ratings) — better—
Positive reviews80.7% of reviews100.0% of reviews — better
Number of ratings21K — better—
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.013.4 — better
Further details — not scored
Size89 MB42 MB
Age rating12+4+
DeveloperCode SparkShreyaskumar Patel

Customer experience

One Calendar

All ratings20,632 ratings
Positive95.4%
Neutral3.2%
Negative1.4%
Written reviews830 reviews
Positive80.7%
Neutral8.6%
Negative10.7%

Calendrier

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

One Calendar

Reported bugs

5 issues
  • Sync errors
  • Unresponsive buttons
  • Incorrect time zone display
  • Duplicate events
  • Inability to delete future occurrences of recurring events

Requested features

6 requests
  • Multiple reminders for events
  • Ability to edit recurring events
  • Option to change event calendar after creation
  • Printing support
  • More customization options
Show 1 more
  • Widgets for better visibility

Calendrier

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

One Calendar

One-time1
  • OneCalendar premium$5.99
None

Calendrier

No in-app purchases

Questions

Is One Calendar free?
One Calendar is free to download, with in-app purchases available.
Is Calendrier free?
Calendrier is free to download, with no in-app purchases.
Do One Calendar or Calendrier have ads?
Neither One Calendar nor Calendrier shows ads.
Which is updated more often, One Calendar or Calendrier?
One Calendar ships an update fortnightly, and Calendrier every 3 weeks. Most recently, One Calendar was updated on October 28, 2026 and Calendrier on October 24, 2026.

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