Installation

System Requirements

• macOS: 10.15 (Catalina) or later
• Windows: Windows 10 or later
• Memory: 150MB RAM
• Disk Space: 200MB

Download

Visit the download page to download the installer for your operating system.

macOS

1. Download the .dmg file
2. Open the downloaded file
3. Drag Calendar0 to your Applications folder
4. Launch Calendar0 from Applications

Note: On first launch, Calendar0 will ask for permission to access encrypted storage (Keychain). This is required to securely store your calendar access tokens.

Windows

Recommended: Microsoft Store (easiest)

Install directly from the Microsoft Store for automatic updates and easy installation.

Alternative: Direct Download

1. Download the .exe installer from the download page
2. Run the installer
3. Follow the installation wizard
4. Calendar0 will start automatically

Note: If using direct download, Windows Defender may show a warning on first install. Click "More info" → "Run anyway" to proceed. Microsoft Store installations don't have this issue.

First Launch

When you launch Calendar0 for the first time:

1. Calendar0 appears in your system tray (menubar on Mac, taskbar on Windows)
2. Click the icon to open the calendar view
3. You'll be prompted to connect your calendar account

Next Steps

• Connect Calendars - Learn how to connect your Google or Microsoft calendar
• Quick Start - Get up and running in 5 minutes