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Head-to-head · Calendar Apps

Notion Calendar vs Proton Calendar

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Notion Calendar #4 in Calendar Apps 9.0/10 Free plan Free plan✓ 4 of 4 features Try Notion Calendar
Proton Calendar #6 in Calendar Apps 8.8/10 Free plan Free plan✓ 3 of 4 features Try Proton Calendar

Notion Calendar leads on 0 checks, Proton Calendar on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreNotion Calendar · 9.0/10
  • Free planboth
  • Most featuresNotion Calendar · 4 of 4

Notion Calendar scores higher on our rubric for calendar apps: 9.0 against 8.8 out of 10; our editors rank them #4 and #6.

On calendar sync, Notion Calendar gives you Two_way where Proton Calendar offers One_way.

Notion Calendar is the better fit for notion users wanting calendar-database integration. Proton Calendar is the better fit for privacy-focused users wanting free scheduling.

  • Notion Calendar fits best

    Notion users wanting calendar-database integration

  • Proton Calendar fits best

    Privacy-focused users wanting free scheduling

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Side by side

Feature Notion Calendar 9.0/10 Visit ↗ Proton Calendar 8.8/10 Visit ↗
At a glance
Editor score 9.0 8.8
Ranking #4 in Calendar Apps #6 in Calendar Apps
Best for Notion users wanting calendar-database integration Privacy-focused users wanting free scheduling
Pricing model Free Free plan + paid
Starting price Free —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Desktop, Mobile Cloud, Desktop, Mobile
Platforms Web, Windows, macOS, iOS, Android Web, Windows, macOS, Linux, iOS, Android
Support Email, Docs Email, Live chat, Docs
Compliance GDPR GDPR
Integrations 13 integrations 6 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Notion Calendar 4/4 · Proton Calendar 3/4
Shared calendars ✓ ✓
Time blocking ✓ (best) Not checked yet
Scheduling links ✓ ✓
Video meeting support ✓ ✓
Specs
Calendar sync Two_way One_way
Mobile apps Ios and android Ios and android
Our review
Pros
  • Displays dated Notion database items beside calendar events
  • Connects Google, Outlook, and Apple iCloud-synced calendars
  • Includes scheduling links, availability sharing, and conferencing support
  • End-to-end encryption for calendar events
  • Free plan includes recurring events and invitations
  • Booking pages, sharing, and Proton Meet links
Cons
  • Its calendar-specific offering has one Free plan
  • Its strongest workflow depends on using Notion databases
  • The product was founded in 2024
  • External calendar synchronization is one-way
  • Narrower integration set than general-purpose calendars
  • Calendar is bundled with Proton Mail plans
Our verdict

Notion Calendar brings work and personal commitments into one calendar across web, macOS, Windows, iOS, and Android. It is designed for individuals and teams who want calendar events, scheduling, and Notion database items in the same…

Read the review →

Proton Calendar is an encrypted calendar service for individuals, families, and teams that want private event management. It supports event creation, recurring schedules, reminders, invitations, sharing, external calendar subscriptions,…

Read the review →
  1. Notion CalendarCalendar Apps 9.0Free plan
  2. Proton CalendarCalendar Apps 8.8Free plan

Strengths and trade-offs

  • Notion Calendar — where it wins

    • Displays dated Notion database items beside calendar events
    • Connects Google, Outlook, and Apple iCloud-synced calendars
    • Includes scheduling links, availability sharing, and conferencing support

    Where it doesn't

    • Its calendar-specific offering has one Free plan
    • Its strongest workflow depends on using Notion databases
    • The product was founded in 2024

  • Proton Calendar — where it wins

    • End-to-end encryption for calendar events
    • Free plan includes recurring events and invitations
    • Booking pages, sharing, and Proton Meet links

    Where it doesn't

    • External calendar synchronization is one-way
    • Narrower integration set than general-purpose calendars
    • Calendar is bundled with Proton Mail plans

More comparisons

All calendar apps comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update