aCalendar - your calendar

Contains adsIn-app purchases
97.2K 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
Feb 5, 2024

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

91.4K reviews
Maureen Fox
January 27, 2024
I love this app for 2 years. However, recently my event alarm/ notifications do not come through or come through 30 plus minutes late. Yes I have everything synced. Yes I have battery power optimization turned off. This is frustrating and I cannot find an answer
5 people found this review helpful
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Tapir Apps GmbH
January 28, 2024
This seems to be a firmware bug in Android 14. We're still looking for a solution.
Tami Hood
December 26, 2023
It's not a bad app. It doesn't crash my system or freeze up my phone. It has a few different ways to set up how you can view it. I can also set up birthdays, appointments and other things I need to keep track of. I have the basic version (free) and my phone is Samsung ultra S20.
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A Google user
March 19, 2020
I had an issue with the agenda widget not showing my tasks. I sent them an email today and within a few hours a gentleman named Matthias replied back. A few back and forth email's ...and I sent a few screenshots....the issue was resolved. Excellent friendly customer support! I have now purchased their aCalendar+ app. This app is what I have been looking for. Great options without being overwhelming. Love the option to adjust the text size since I am a senior. Also totally enjoying the dark mode. Thank you again customer support!
10 people found this review helpful
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What's new

Welcome to aCalendar 2.8!
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: