aCalendar

Elegant calendar with powerful widgets and smart scheduling

aCalendar is a mature, feature-packed calendar tool that focuses on clarity, speed, and customisation. It puts your agenda, week, month, and even year views just a swipe away, making it easy to jump between the big picture and the details of your day.

Navigation is one of its strongest points. Vertical swipes move you through time, while horizontal swipes switch between views, always landing you on the relevant date. Tapping events feels instant and responsive, and the optional mini month or graphical week overview in day and week view helps you understand your schedule at a glance.

The app shines when it comes to features that go beyond a basic calendar. It pulls birthdays from your contacts, shows moon phases, and offers flexible recurring events for complex schedules. Power users will appreciate multi-select to quickly move, delete, or modify several events at once, as well as export options to ICS or CSV for backups or sharing. There are eight widgets, including a dedicated birthday widget, so you can keep your schedule visible on your home screen in several different layouts.

Customisation is another major highlight. You can tweak colors, views, and layouts extensively, and upgrading unlocks even more themes, calendar colors, and event colors. The paid features also add business-friendly tools like attendee invitations, free/busy information, and task management via Google Tasks or CalDAV, plus public and some school holidays.

On the downside, the interface can feel dense initially, and some of the most appealing options are reserved for the paid upgrade. The occasional ad in the free version may also distract some users.

Overall, aCalendar is a robust, polished choice for anyone who needs more than a basic datebook and values both power and flexibility in daily planning.