aCalendar+ Calendar & Tasks

4.8
39.9K reviews
Content rating
Everyone
500K+
Downloads
Content rating
Everyone
Learn more
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About this app

aCalendar+ makes your day, week and month since over a decade!

For questions or problems see our online help system at https://acalendar.tapirapps.de or contact our support at support@tapirapps.de

aCalendar+ is the premium version of aCalendar - with all features unlocked and no ads.

aCalendar+ gives you many additional calendar features and your purchase supports further development and helps protecting the endangered Mountain Tapir.

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)
♥ Tapir Apps donates 10% of all revenue to rainforest conservation through our friends at World Land Trust

FEATURES
● intuitive navigation with smooth transitions
● day, week, month and year view
● Fullscreen widgets
● flexible recurrences like every 3 weeks, every 17 days, or every Mon, Wed and Fri
● over 100 colors to choose from as calendar color
● per-event colors (even if not supported by the event's calendar)
● custom event font size
● birthdays & anniversaries with photos from your addressbook and editing
● uses Android's native calendar backend and synchronization

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
♥ If you like aCalendar+, please show your support by leaving a good rating and recommending it to your friends ♥
Updated on
Sep 8, 2025

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.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Files and docs and Calendar
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.8
36.4K reviews
h W
May 24, 2026
Hands down the best calendar app I have ever used. It's so easy and robust. I've been using aCalendar+ for many years and love it. My favorite option is the ability to copy and paste appointments to multiple specific dates all at once. I am on a rotating schedule so I add one day and then can copy it to the dates I work for the entire year. It takes only a minute or two with aCalendar+ to put in my full year schedule rather than about 15-20 minutes with all the other calendar apps I've used. 👍
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Steve M.
May 7, 2026
I've been a happy user of aCalendar + for the past few years. I have multiple MS 365 accounts that I need to see in one simple, customizable app on my phone. Unfortunately, because the app does not directly log into MS accounts but rather "piggy-backs" on Android accounts, it has stopped syncing with 365 due to a recent change in MS account standards that is excluding Android/Google client logins. So, I'm forced to use another app that does support direct logins to 365, at least for now.
1 person found this review helpful
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Tapir Apps GmbH
May 7, 2026
We haven't heard of such a sync problem. Is this specific to your corporate exchange server? Best contact our support with details.
Michelle L. Sams
September 23, 2024
This was my most favorite calendar. I love the day widget and live by it. It will not sync. I have contacted the developer and they say it's a syncing issue with Google, but when install similar apps that are interfacing with my Google calendar, immediate changes are seen between apps. My issue claims to be network, but I've tried being on WiFi and cellular and neither fix my situation. This just started about a month ago and uninstalling, reinstalling etc has not fixed the problem.
10 people found this review helpful
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Tapir Apps GmbH
September 23, 2024
Those "similar" apps are not at all similar if they interface with Google calendar, which aCalendar doesn't. ACalendar interfaces with the android calendar storage, to which the Google calendar app provides synchronization. Thus the problem lies in the settings for the Google calendar app, most likely background restrictions.

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