aCalendar - your calendar

Tapir Apps GmbH

Contains adsIn-app purchases

About this app

aCalendar makes your day, week, and month since 14 years!

For questions or problems see our help system at https://acalendar.tapirapps.de or contact our support at [e-mail]

FEATURES
● intuitive navigation between day, week, month and agenda view
● 8 powerful widgets (NEW birthday widget with 2.9)
● multi-select with various actions (NEW in 2.9)
● 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
● printing
● 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.

USAGE
● 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

PERMISSIONS
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.

TRANSLATIONS
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.

LOVE
♥ 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 ♥

Ratings and reviews

OCT 2022 (5 stars) I spent a lot of time looking at all the calendar apps, and in my humble opinion, this is the best calendar app. UPDATE: Dec 2025 (2 stars) The ads are unreal, even though I paid. They come on full screen and they won't go away for a full 20 to 30 seconds. With one ad, I had to restart my phone because the ad wouldn't go off... going to get another app. This one now is terrible. I understand that nothing is free, but this ad is now abuse.

used to be the best calendar app on the market, but with the last few updates, I can't even look at an event without triggering a full screen advertisement. I get that they want to make money, but there should be some kind of cool down period so if I look at an ad now I don't get spammed 20 seconds later when I click another button accidentally. Ads should also NEVER be full screen, put a banner in the app or something jeez.

Been using this for years, and found a problem. Not sure where the problem lies, but it is not possible to enter a timezone for Turkey. Say you are currently in London, and have an appointment in Istanbul at 10a.m., is does not seem easy to create an entry. Turkey is not recognised as a country. Language is set to English, on Android 16. OK. Something funny going on with my phone (Pixel 6a). Mostly there is nothing in the list after Tokelau, other times (rarely) it goes further to Tuvalu, Türkey

What’s new

Welcome to aCalendar 2.9!
If you have any questions or problems, please go to MENU - HELP (or visit https://acalendar.tapirapps.de)!
As indie app studio we rely on good ratings, especially as all our upgrades are one-time purchases.
Full changelog: https://acalendar.tapirapps.de/en/support/solutions/articles/36000509331