aCalendar - Android Calendar

aCalendar - Android Calendar

aCalendar - makes your day, week and month.

Additional Informations
  • Current Version: Varies with device
  • Updated: February 16, 2018
  • Requires Android: Varies with device
  • Installs: 10,000,000 - 50,000,000



9/10 "an almost perfect calendar" - Softonic Editorial Team

● intuitive navigation with smooth transitions between day, week and month view
● Agenda view and widget
● year view
● Hybrid month/agenda widget
● 48 colors per calendar,
● Google Calendar management
● per-event colors (if supported by the event's calendar)
● flexible recurrences
● birthdays from your contacts (or without contacts)
● Fullscreen widgets for all 3 main views plus floating 7 days
● uses Android's native calendar backend and synchronization
● moon phases
● mini month or graphical week overview in day and week view
● QR and NFC barcode sharing of events
● free

EXTRA FEATURES in aCalendar+ or as In-App-Purchase
● Public holidays (and school holidays for some countries) - configurable in the calendarlist
● Color themes (UI and Widget colors, dark background - NOT event colors: those are defined by your calendar service)
● 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 advertisement)
♥ Tapir Apps donates 10% of all revenue (app purchase, IAP, ads) to rainforest conservation through our friends at World Land Trust

● move forward and backward by swiping vertically or volume rocker
● 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 event
● long-press to add new event
● long-press on mini-month to go to today or jump to date
● tap on photo to open quick contact menu
● 3-finger-tap for configurable action

native language support for around 30 languages. Those are mostly user-contributed, please contact me if there is a bad translation or you'd like your language added!

aCalendar only asks for mandatory permissions for its functionality. No data of yours will ever be shared with anyone unless you decide to. We have no access to any of your data. If you have any questions about permissions please contact our support by email.

Unfortunately app2SD cannot be supported, because homescreen widgets do not work from SD. This is an Android limitation. But aCalendar is optimized not only for speed but also for size.

♥ 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 ♥


79,381 total
5 49,866 
4 18,253 
3 5,441 
2 2,521 
1 3,300 

  • aCalendar - Android Calendar
    Nicole Bowen Published date: February 16, 2018

    I love this app. I've had it on my phone's for several years. It always syncs up perfectly with no issues. It's easy to use and gives multiple layout and customization options. It also integrates well with other calendars. *Update to my love for this app. I updated my phone software last night 2/15/18. This morning my acalendar app wasn't working correctly so I knew it had to be something with the system update. I emailed the developer and got an instant response that they were aware and working on a fix. That was at 9:45am. At 11:30am they emailed me that the fix was available. I'm thoroughly impressed with the turn around time on this. Thank you for working so diligently to have that update out quickly. I rely heavily on this app for my job with schedule meetings and my personal life so I greatly appreciate your efforts. Full Review

  • aCalendar - Android Calendar
    Tatiana Fulgentes Published date: February 22, 2018

    Been using this app for 2 years and I love how you could set it up to show a default view -- month, week, day. Very flexible reminder scheme and repetitive schedule. Full Review

  • aCalendar - Android Calendar
    Feeroza Kapadia Published date: February 3, 2018

    Love the calendar, very user friendly. Had initial issues with notifications reminding me around midnight the day before! But this is easily rectified by going into my Google calendar & changing settings there.This calendar is brilliant as it acts as a basic month to month calendar. For those with busy schedules, it allows you to add lots of reminders and notifications & see it all on your calendar at a glance. This is my most used App, & would be lost without it. Full Review

  • aCalendar - Android Calendar
    Gerald Sangalang Published date: December 22, 2017

    It's perfect right out of the box for organizing personal and family schedule. I have downloaded a bunch of highly rated calender apps from the Play Store, but this one stands out from the rest. The only thing missing and I wish they add this feature in the future is to show the current date and day on the app logo, so I don't have to open the app just view today's date. Full Review

  • aCalendar - Android Calendar
    Happy Canoe Published date: February 8, 2018

    My favourite calendar app so far. The widget is pretty good for my needs and it's easy to navigate and edit events (unlike Samsung calendar) 2 little features that would make this even better: 1. An option to turn off time zone handling - so 7am is just 7am regardless of where you are in the country. So that you don't end up getting 4am notifications when traveling to the west coast, for example. 2. Option to reorder events to control what gets displayed in the widget when there are too many for the space available. Particularly for days when there are holidays from other provinces that I don't care about, which block my view of my own events. Full Review

  • aCalendar - Android Calendar
    William Arseneau Published date: December 18, 2017

    This is a great calender, but I would like to put in a feature request, but cannot figure out how to do it on the website: I would like if when setting a reminder, one option was just a notification, with no alarms or anything... As it stands, the only reminders I can set are 'alarm' and 'email', and having my alarm go off for every reminder is not ideal. Full Review

  • aCalendar - Android Calendar
    Carl Schatz Published date: December 27, 2017

    THE BEST... This is a really well done calendar app! I'll gladly buy the upgrade just to support the developers even though this free version has all the features I need. The ads are completely unobtrusive, almost nonexistent, totally unlike other ad-supported apps. Full Review

  • aCalendar - Android Calendar
    Rhys Plopinio Published date: January 27, 2018

    Really great app! I was once an iPhone user and their calendar app is PERFECT. This app has most of its features and I can honestly say this app is 9/10. Things i hope that would still be included in the app: When you long click an event in the day view, there will be mini lines that you can drag to extend or compress the duration of the event. The interface is a bit slim that I can't seem to distinguish one date from another. The font colors are all too light with the white background. It's better if the colors are darker even in the free version. When they include my suggestions, I'd probably buy it. Full Review

  • aCalendar - Android Calendar
    Published date: January 2, 2018

    USER FRIENDLY!!! EXCELLENT!!! Syncs with your Google calendar or other but it is much much easier to use. I've tried many other calendars and this is by far the best one out there.. I've used this for years and it works perfectly. Select week view and you see a nice clean overview of your week without clutter. And it doesn't use that terrible hour per hour grid that other calendars use that is always such a mess. This is the model of what other calendar app designers should strive for Full Review

  • aCalendar - Android Calendar
    Ari Lemmke Published date: February 6, 2018

    Uninstalled. Some bugs like events synchronized uncorrectly: past days have the same event up to 183 times for same day (with Zimbra). Notifies with bell the same meeting hundreds of times continously. Extremely slow. Full Review

  • aCalendar - Android Calendar
    Justin Matthew Wong Published date: February 16, 2018

    This app is great, but I've been getting problems lately. Whenever I create an event, it automatically adds a reminder even though I have set the reminder to none. My other problem is my calendar sometimes doesn't save new events when my connection is bad. Please resolve these issues. Other than that, this is my fav calendar app Full Review

  • aCalendar - Android Calendar
    Susan Published date: January 12, 2018

    Ok... read to the end! I've been Using this app for 2 yrs. A Couple days ago I had a serious problem losing ALL my appointments/info. Freaked out and advised @calendar/Google. I wasn't very nice, I'm embarrassed to say. However I was frustrated and LOST! AFTER ALL, I depended on this app. Within 2 days I was pleasantly surprised to see I had EVERYTHING back!! Proving that this is not only the BEST calander app., user friendly, clean, organized and reliable but even provides the BEST support from some obvious compassionate, reliable, forgiving people who proved there are still companies out there that WILL go the extra mile!!! Full Review

  • aCalendar - Android Calendar
    Kerry N Published date: January 5, 2018

    I wanted to love this app as i've been using it on and off for a few years but it keeps deleting my calendar events. That was the main reason I stopped using it in the first time but I thought I would give it another shot and it's still doing the same. Guess I will have to find a more reliable app. Full Review

  • aCalendar - Android Calendar
    Christopher Marsh Published date: February 12, 2018

    The in-app purchases are for other themes but honestly the default blue and green are still very nice aesthetically. Copying events is way easier than Google's calendar app, and it will synchronize with anything you already have on there. Five stars Full Review

  • aCalendar - Android Calendar
    Rajnikant Sitapara Published date: January 21, 2018

    Superior apps. I feel Old event delete problem Full Review

  • aCalendar - Android Calendar
    Olga Carvalho Published date: January 27, 2018

    Widget crashes 1 to 2 times a week. Still the best one Full Review

  • aCalendar - Android Calendar
    Graeme Walker Published date: December 7, 2017

    Good app, but have noticed recently that appointments over 1 year old are now disappearing. Apparently its a google calendar issue, so am now rating as 5 star. Full Review

  • aCalendar - Android Calendar
    AARTA Akita Advocates Published date: January 3, 2018

    After getting used to the sadly mediocre performance of this app, I has TANKED the past four days. I updated it yesterday to no avail. No reminders going off = USELESS. PLS.FIX ASAP. Full Review

  • aCalendar - Android Calendar
    Ed Kirk Published date: December 20, 2017

    My only problem with this app is I get reminders 2 days after the event. Other than that it's great. Full Review

  • aCalendar - Android Calendar
    Andrew Medvedev Published date: December 29, 2017

    After last update google sync stopped working. I get TASK DEBUG FIBISHED message each time I try to sync tasks Full Review

  • aCalendar - Android Calendar
    Sunny Neuroshima Published date: January 22, 2018

    The best calendar app I have used and I've used many! Just needs one feature: The ability to create event templates so I can enter my many work shifts quickly and easily. Full Review

  • aCalendar - Android Calendar
    theresa marie Published date: December 11, 2017

    I've been using this app for years. Always worked well for me and I don't plan on changing to a different one Full Review

  • aCalendar - Android Calendar
    ndeco2 Published date: January 31, 2018

    Reminder not work on my S5, 6. Solved! Settings, battery, app power saving, set for aCalendar on off. Now reminder work. :) Full Review

  • aCalendar - Android Calendar
    Maria Romfo Published date: January 3, 2018

    How do you get the widget to go into the "week view"??? I've always liked this app but I just got a new phone and now I can't get the widget to go into week view. Instead the widget just scrolls through the calender. Full Review

  • aCalendar - Android Calendar
    Dianne Van Eck Published date: January 28, 2018

    It's a great app and on my Samsung 6 it worked perfectly but since I've got my new Samsung Note 8 it won't sync with my Outlook calendar anymore. Any tips? Full Review

  • aCalendar - Android Calendar
    tar TAR Published date: January 4, 2018

    I've been using this app for about a year and i loved it until now: events have been disappearing from the calendar now and it's very frustrating UPDATE JAN 2018: i really liked this app but the app provider didn't follow up after I asked for assistance with this problem and today, after noticing that it once again deleted a very important meeting, i am uninstalling the app. Full Review

  • aCalendar - Android Calendar
    Laura Kirk Published date: January 8, 2018

    just wish it would save when I get interrupted while adding an event.. its an adhd thing.. Full Review

  • aCalendar - Android Calendar
    C OMPO Published date: January 28, 2018

    Really love this calendar, as has been mentioned it's completely unobtrusive and ads are minimal and no problem at all. Interface is slick and easy to navigate so all in all a great ap. Full Review

  • aCalendar - Android Calendar
    Erik Deyo Published date: February 16, 2018

    I love this calendar because I can see text on the days in monthly mode. It's much better than just showing a dot like many others. Full Review

  • aCalendar - Android Calendar
    Chris Lowth Published date: January 18, 2018

    Sync is broken. Have to go to Google calendar app and sync from there. Full Review

  • aCalendar - Android Calendar
    Published date: December 9, 2017

    Best calendar app I've used .. by far. Simple, nice layout, can sync with other's calendars, has reminders, all around perfect for my needs. Full Review

  • aCalendar - Android Calendar
    Holly Chen Published date: January 30, 2018

    Used to be five stars, but for the last 8 months or so, occasionally events don't save after you enter them, which is a huge problem! Please fix! Full Review

  • aCalendar - Android Calendar
    Nick Luff Published date: February 10, 2018

    Dropped 1 star as Birthday photos have stopped appearing in the widget. Full Review

  • aCalendar - Android Calendar
    Published date: December 18, 2017

    An excellent app. I haven't found anything that is as easy to use and as clear to see. My only request is is it possible to synchronise automatically? Full Review

  • aCalendar - Android Calendar
    Rita Notaro Published date: December 9, 2017

    Switched from Google calendar to this. Format user friendly, traditional calendar layout,which is important to me. I am new to a smartphone and learning to use a calendar to keep me organized and this does it for me! Full Review

  • aCalendar - Android Calendar
    Erik Mak Published date: February 18, 2018

    [SOLVED, see below]Just discovered that events over one year disappeared. Reviews below said that it's due to google sync but I found it unacceptable. Google still keeps my events and why I can't check them out on my own device? And why synchronization would remove them from my device? Any methods that I can stop that from happening?[SOLVED] ---- ----- Login Google Calendar at a PC/Mac Settings>>Import & Export>>Export Turn off auto-sync at device Extract the iCal file (.ics) from the zip folder At web Google Calendar Settings>>Import & Export>>Import the iCal file Sync at device Old events are back! Full Review

  • aCalendar - Android Calendar
    Chrissy L Published date: December 6, 2017

    Best calendar app that I have found. Easy to use, I love that you can change colors for each event. It's FREE! Full Review

  • aCalendar - Android Calendar
    Mohamed Tarek Published date: January 31, 2018

    i wish there was a way to insert voice notes (not voice to text) into calendar events, can you make it happen please? Full Review

  • aCalendar - Android Calendar
    Published date: December 16, 2017

    Fantastic app. Lots of extra features that other calendar lack. I also like how multiple events on the same day open as tabs. Developer is very responsive. Full Review

  • aCalendar - Android Calendar
    John Mullee Published date: January 12, 2018

    the perfect little calendar app, but each upgrade makes me view the nag screen 32 times (free version) Full Review