Best GNOME Calendar Alternatives & Competitors in 2025

Spend less time managing your day & more time enjoying it

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

Open Source

High performance web components for SaaS apps - including Gantt, Scheduler, Grid, Calendar and Kanban widgets. Seamless integration with React, Vue, Angular or plain JS apps.

Try for free Free Trial $850.0 / One-off (OEM license for commercial use)

KOrganizer is the calendar and scheduling component of Kontact, the integrated personal information...

Material design open source calendar for Android.

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

Rainlendar - Customizable desktop calendar

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

All your contacts in one place

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

Kontact is the integrated Personal Information Manager of KDE.

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

You've reached the website for Arch Linux, a lightweight and flexible Linux® distribution that tries to Keep It Simple. Currently we have official packages optimized for the x86-64 architecture.

Open Source

Features | 1.0.175 for Android™