aCalendar Alternatives

Spend less time managing your day & more time enjoying it

Powerful and easy to use calendar app for Android including weather, widgets and tasks.

Schedule books must be practical and has a good design.

Annual View displays and manages calendar events within a year view.

Material design open source calendar for Android.

A simple calendar with events (optional recurring and reminders), week numbers and a customizable...

Features | 1.0.175 for Android™

What if your Google Calendar was designed to make you more productive?

Taskwarrior is an ambitious project bringing sophisticated capabilities to a simple and elegant...

All-in-one Calendar, Tasks & Scheduler. Morgen is the single hub for everything that revolves around time management.

Organize your life — it’s about time!

Emma integrates with your calendar to automatically add accurate travel. You can set up ‘meeting pages’ where meetings can be arranged quickly based on preferred times and are added directly to the calendar.

paid

Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM. Platform-independent, Open Source, no installation or registration required.

open-source