1. Information
GoDaddy Google Workspace Microsoft 365 Nextcloud Groupware Open-Office Proton Workspace: Calendar, Docs, Drive, Mail, Meet, Pass, Sheets, VPN Replaces the former Business Suite. Workspace Standard / Workspace Premium
Suite Calendar Domains Mail Meetings Pass Mgr Spreadsheet Storage VPN Text processing Platforms
Microsoft Exchange
Self-hosted ? Offline mode?
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See https://www.bookingpressplugin.com/best-google-calendar-alternatives.
Suite Platform --------------- ----------------- Google Calendar Android, iOS, Web Microsoft Outlook Calendar Android, iOS,macOS, Windows, Web Apple Calendar Android, iOS, Web Calendly Fantastical Proton Calendar Proton Mail Android, iOS, Linux, macOS, Windows, Web, Bridge (for Microsoft Outlook, Mozilla Thunderbird, or Apple Mail)
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Separate Domain & DNS provider.
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Separate Email provider.
2. Platform Compatibility
Android iOS Linux macOS Windows
3. Downsides
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Microsoft’s push for Copilot.
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Proton Mail requires Proton Mail Bridge.