Compare Proton Calendar vs Google Calendar

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Proton CalendarGoogle Calendar
 
Proton Calendar logoProton Calendar
Google Calendar logoGoogle Calendar
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Main
Task management±+
Task lists±±
Recurring tasks++
Subtasks−—
Subtasks recurring−±
Priorities±±
Habit tracking−−
Goals progress tracking−±
Analytics / reporting±—
Notes templates−−
Integrated templates±—
Calendar view++
Daily agenda view—+
Weekly view—+
Week at a glance—+
Weekly templates—−
Daily planning—+
Monthly planning—+
Time blocking±+
Planner & calendar segregation−−
Offline mode±±
Reminders—+
AI scheduling—−
Smart rescheduling—−
Notes—±
Templates—−
Collaboration—±
Custom sections—±
Better for personal use+—
Better for team use±—
Platforms
Windows±+
Android++
Web++
MacOS±+
iOS++
Desktop—+
Free version—+
Sync across devices++
Calendar sync
Calendar sync±+
Integrated calendar++
Synchronize with Apple Calendar±±
Synchronize with Google Calendar±+
Synchronize with Microsoft Calendar±±
Outlook sync±±
Interface
Themes / appearance presets++
Dark mode+—
Notification support+—
On-screen reminders+—
Repeated reminders+—
System / OS integration±—
Drag & drop±—
Visual planning—+
Special features
AI assistance / AI features−−
Attachments & embedded media±−
Stickers−−
Interactive checklists / checklist support−—
Handwriting & stylus
Apple Pencil support−−
Handwriting / stylus support−−
Palm rejection−−
PDF annotation / markup−—
Handwriting to text conversion−−
Search in handwriting−−
Special features
Meeting notes workflow±±
Time tracking−—
Pomodoro / focus−—
Binding task to geo±—
Projects / folders±—
Nested folders / depth±—
Tags & filters±—
Search±—
Synchronize & backup
Cloud sync++
Password-protected notes±—
iCloud / Google Drive sync−—
Auto backup++
Notes / tasks sharing±+
Task sharing, delegation±—
Collaboration / sharing (incl. team)±—
Shared lists—+
Sharing events+—
Export to PDF / other±—
Export via link±—
Slack / Zapier integrations−—
Google Workspace support±—
Profile
Calendars++

Proton Calendar

Pros

  • Event metadata is designed for zero-access encryption on Proton’s infrastructure
  • No ads or third-party trackers in the product’s privacy positioning
  • Same Proton Account ties calendar, mail, VPN, drive, and pass for one subscription story
  • Web plus iOS and Android clients cover typical mobile-and-browser workflows
  • Swiss jurisdiction and open-audit culture matter for security-sensitive teams

Cons

  • Feature depth and polish still trail Google Calendar for power schedulers
  • Store reviews cite sync latency, missing niceties, or occasional logout bugs
  • Deep Google Workspace or Microsoft org cal coexistence is not the primary design center
  • Native desktop clients are not the headline—browser access carries most laptop use
  • Meaningful calendar limits on the free tier push heavier users toward paid bundles

Google Calendar

Pros

  • Defaults stay synced for Workspace and Gmail accounts
  • Invites and rooms behave predictably in corporate stacks
  • Offline tweaks keep Agenda usable in low signal
  • Tasks sit beside events for quick capture
  • Runs on web, Android, and iOS with identical data

Cons

  • Privacy-minded teams route sensitive planning to Proton or local-first stacks
  • Design and widgets lose beauty contests to boutique calendars
  • Natural-language entry trails Fantastical-class parsers
  • Power workflows lean on add-ons beyond stock scheduling