aCalendar - your calendar

Contains adsIn-app purchases
93.7K reviews
Content rating
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About this app

aCalendar 2 is available NOW!
We improved everything but kept it familiar.
For questions or problems see our new help system at or contact our support at

● intuitive navigation between day, week, month and agenda view
● 7 powerful widgets
● printing
● export as ICS or CSV
● year view
● lots of design and view customizations
● Google Calendar management
● flexible recurrences
● birthdays from your contacts (or without contacts)
● uses Android's native calendar backend and synchronization
● moon phases
● mini month or graphical week overview in day and week view
● free with ads and some one-time IAPs

EXTRA FEATURES (aCalendar+ or as In-App-Purchase)
● Public holidays (and school holidays for some countries) - configurable in the calendar list
● More colors (theme/UI colors, background colors, calendar colors, event colors)
● Business features (Invite attendees, link contacts, free/busy, private, profiles, share as ICS)
● Tasks (manage Google Tasks or tasks from CalDAV/OpenTasks)
● No ads (removes the occasional ad)
♥ 10% for the planet! Tapir Apps is a proud sponsor of World Land Trust, Rainforest Trust and the Tapir Specialist Group.

● move forward and backward in the calendar by swiping vertically
● switch between calendar views with a horizontal swipe (opens the day or week you start the swipe gesture on) or double-tap for day view
● tap to open a calendar event
● long-press to add new calendar event
● long-press on mini-month to go to today or jump to date
● configurable actions on 3-finger-tap, tap on title, volume buttons
● long press an event in day view to drag to a different time

aCalendar only requests permissions needed for app functionality. aCalendar+ respects your privacy and will NEVER send any of your private data anywhere unless configured by YOU. Please contact us if you have questions about permissions.

aCalendar+ is translated into more than 30 languages, mostly by volunteers - please let us know if there is a bad translation somewhere or you want to add your language.

♥ aCalendar is made with love, sweat and tears in the heart of Munich. If you like aCalendar, please rate or comment and recommend it to your friends. Also consider upgrading to aCalendar+ for extra features ♥
Updated on
Sep 23, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
This app may collect these data types
Personal info and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

88.1K reviews
September 7, 2023
I've been using aCalendar app, free version, for a few years. Easy to navigate, does what I want, no problems. Link it with other calendars or not. A single (static) ad after creating events isn't such a big deal to me. aCalendar is much better than the stock calendar
1 person found this review helpful
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Mark Pedrin
July 26, 2023
I loved this calendar app for years but I am moving on. The new invasive full screen ads are too much. I was showing my phone to a client to set an appointment, imagine my embarrassment to treat her instead to a full screen ad for some kind of body girdle demonstration. 3 seconds of taking control of my device is 3 seconds too long. Sorry, I'm done!
19 people found this review helpful
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Michelle M
December 31, 2020
The app works okay, but its ads have become extremely invasive. They not only take over the app, they take over your entire phone so that you can't switch apps or even get to your home screen. I have an Android and they somehow manage to even make the buttons at the bottom disappear. It didn't used to do that. I'm getting ready to ditch this app for a different one. I do like that it lets me snooze as many times as I want & specify the duration of the snooze (that's why I chose it).
47 people found this review helpful
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Tapir Apps GmbH
December 31, 2020
Thanks for your feedback! You can always close ads after 3s. Your on screen buttons (back, home, app switcher) are always available. In fullscreen/immersive mode you need to swipe up for them to show, just like in any video or photo app. If you want an ad-free experience, it's a small one-time fee available from menu - upgrades.

What's new

Welcome to aCalendar 2.7!
If you have any questions or problems, please go to MENU - HELP (or visit!
As indie app studio we rely on good ratings, especially as all our upgrades are one-time purchases.
Full changelog: