When comparing aCalendar vs Business Calendar 2, the Slant community recommends aCalendar for most people. In the question“What are the best free calendar apps for Android?” aCalendar is ranked 10th while Business Calendar 2 is ranked 12th. The most important reason people chose aCalendar is:
Tasks get shown in the calendar, although there is also a separate tasks view. It supports Google Tasks and recurring tasks.
Specs
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Pros
Pro Good Tasks integration
Tasks get shown in the calendar, although there is also a separate tasks view. It supports Google Tasks and recurring tasks.
Pro Very convenient user interaction
Switching from day<->week<->month views by swiping laterally is a powerful feature.
Pro Lots of customization options
The settings menu is rather detailed and includes a good selection of color themes to choose from, possibility to adjust font-size, set beginning and end of day, ability to choose what views to use and more.
Pro Free, ad-less version available
aCalendar is an Android app that comes in free, ad-less version as well as this paid version.
This paid version aCalendar+ adds more features like agenda view, home screen widget and the ability to manage Google Calendars. The developer also donates some of the profits from this Pro version to help protect the endangered mountain tapir.
Pro Nice presentation
The three views are very convenient, particularly the week view, which shows the week position inside the month
Pro Good fullscreen widgets for all views
The app has widgets for day, week and month views.
Pro Color-coding support
The app has 48 calendar and 12 event colors.
Pro Can add public holidays to calendar from over 35 countries
For the 30+ available languages for the app, there are holiday calendars available to be added.
Pro Lunar calendar support
aCalendar can be set up to use a calendar based on cycles of the lunar phases.
Pro Unique Week overview
Its week overview is very well suiting for tasks and all day events. It shows everything at once.
Pro Drag'n'Drop
Drag'n'drop functionality is available in day view with this paid version of the application.
Pro Useful 3-finger tap to go to today
By utilizing a three finger tap shortcut users can easily got to the today view from anywhere in the app.
Pro Available in 30 languages
There are 3o user made translations available for the app, making for a good calendar to use in different countries.
Pro QR and NFC barcode sharing of events
Using both QR codes as well as NFC, users can share events wirelessly and easily
Pro Responsive support
Developer provides prompt and understanding support with problems raised/questions asked.
Pro Multiple Calendar + Multiple Task functionality
Allows you to manage multiple calendars and multiple task (Google) accounts with ease.
Pro Multiple flexible widgets
Allows you to customise the look/feel of the widget, even after it has been created. Show different calendar/task accounts per widget.
Pro Advanced scheduling options
Every 2 weeks, then edit four weeks in for 'This and following instances' etc., perfect with Google Calendar.
Cons
Con Free version is very limiting
Free version of the application does not include common things like the agenda view, actionable notifications or attendee management among many other more advanced features.
Con Somewhat overwhelming amount of options
Con Trackers!
Con Unskippable Ads
Users are forced to sit through a timer window every day before the ads will skip (for that day). Stupidly poor idea for a "Business" focused calendar app.
Con Isn't multi-platform
No option to manage from PC, it would be cool if there was multi-platform for this app as website, Windows App, Mac OS, etc.
Con Support
