European Alternatives to iCloud Calendar
Calendar integrated with the Apple ecosystem (Mac, iPhone, iPad, Apple Watch). Native iCloud sync, family sharing via Apple Family.
iCloud Calendar Features
- Native integration with macOS/iOS/iPadOS/watchOS
- Automatic iCloud sync
- Family sharing (Apple Family)
- Siri, Apple Maps, Mail integration
- 5 GB free shared (Calendar, Mail, Photos, Backup)
- Proprietary source code
Price: Free (5 GB shared) / iCloud+ from 0,99€/month (50 GB)
Why leave iCloud Calendar?
- Apple officially confirms that iCloud Calendar is NOT end-to-end encrypted, even with Advanced Data Protection enabled
- The CalDAV standard used by Apple is technically incompatible with end-to-end encryption
- Apple can read your events to 'provide and improve the service'
- Apple Inc. is headquartered in Cupertino (United States) and subject to the US CLOUD Act
- Only 5 GB free, shared across Calendar, Mail, Photos and backups (vs 15 GB at Google)
Recommended : Proton Calendar
End-to-end encrypted calendar from Proton (Mail, Drive, VPN). Titles, descriptions, locations and guests all encrypted — not even Proton can read them.
Country : CH
Compatibility Scores
- Migration : 80/100
- GDPR : 95/100
- Features : 90/100
- Overall Score : 89/100
Proton Calendar Features
- Free tier included in the Proton free account
- End-to-end encryption (titles, locations, guests)
- Polished web, iOS, Android apps
- Import .ics from Google/iCloud/Outlook
- Calendar sharing with access controls
- Bundle with Mail + Drive + VPN + Pass available
Price: Free / Plus from 4,99€/month (24-month plan) / Unlimited at 9,99€/month
Why this choice?
Proton Calendar is our recommendation for iCloud Calendar users because Apple officially admits NOT end-to-end encrypting Calendar, even with Advanced Data Protection enabled. Proton encrypts every detail (titles, locations, guests), offers the most polished iOS apps in the EU market and an included free tier, with Swiss jurisdiction outside the CLOUD Act as a bonus.
Switch from iCloud Calendar to Proton Calendar
Strengths
- Real E2E encryption on events (Apple admits NOT doing it, even with ADP enabled)
- Best iOS apps in the EU calendar market
- Swiss jurisdiction outside the CLOUD Act
- Free tier in the Proton free account
- Bundle Mail + Drive + VPN + Pass available
Weaknesses
- No native Siri/Apple Watch integration
- No direct integration with macOS Calendar app (CalDAV possible)
- Manual migration (export/import .ics)
All Alternatives
- Proton Calendar (CH) — Score : 89/100 (Recommended)
- Tuta Calendar (DE) — Score : 83/100
- Infomaniak Calendar (CH) — Score : 81/100