aCalendar - your calendar
aCalendar - your calendar Summary
aCalendar - your calendar is a ad-supported, with in-app purchases Android app in the Productivity category, developed by Tapir Apps GmbH. First released 14 years ago(May 2011), the app has accumulated 11.6M+ total installs and 100.9K ratings with a 4.37★ (good) average rating.
Recent activity: 1.6K installs this week (8.4K over 4 weeks) showing steady growth , and 8.00 new ratings this week View trends →
Data tracking: SDKs and third-party integrations were last analyzed on Feb 18, 2026. The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Oct 5, 2025.
Store info: Last updated on Google Play on Sep 8, 2025 (version 2009500).
aCalendar - your calendar was last scanned for SDKs 2026-02-18. Below is the overview of third party companies detected in the app. The full list of raw SDKs, app permissions and unknown SDKs is available here.
Facebook
Google
Nimbus
Firebase
Kotlin
Square
Microsoft
JourneyApps4.37★
Ratings: 100.9K
Screenshots
App Description
aCalendar - makes your day, week and month!
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 support@tapirapps.de
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 comm