Lightning Calendar Alternatives

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

Optimize your schedule with custom booking pages and calendar integrations

Try for free freemium $29.0 / One-off ($29 one-time paymnet)

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

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

Rainlendar - Customizable desktop calendar

GMinder is an open source Windows System Tray app that pops up to remind you about Google Calendar events.

A portable calendar and diary for people on the move...

free

This program helps you organizing your dates and tasks and reminds you of upcoming events.

Keep a nice, transparent calender on the desktop. Double-click on a day to enter a description.

Material design open source calendar for Android.

Fantastical, the Mac calendar app you'll enjoy using. Quickly create new events with natural language input and more.

Calendar is a personal calendar app made by Apple Inc. that runs on both the macOS desktop operating system and the iOS mobile operating system.