Fastmail Calendar vs Mailfence

Fastmail Calendar is an online calendar integrated with Fastmail email, available on web, Linux, macOS, Windows, Android and iOS. It supports two-way calendar sync and shared calendars, including business plans with sharing and administrative controls. Users can bring in calendars from Google, iCloud and elsewhere, search instantly, and organize events with drag-and-drop editing. It can show schedules in other time zones, compare emailed event updates with earlier versions, and manage calendars offline in its apps; changes sync when the device is back online. Fastmail documents calendar access through CalDAV and JMAP APIs for account data more broadly. The service is paid, has a 30-day trial and does not list a free plan. Options include Basic at $4 a month, Individual at $6 a month, Standard at $6 a month, Duo at $10 a month, Professional at $10 a month and Family at $14 a month. Longer billing terms have separately listed rates. Fastmail was founded in 1999 and is headquartered in Melbourne, Australia.

Mailfence is an email service with end-to-end encryption and access through the web, iOS and Android. Its free plan provides web access and 1 GB total storage, split between 500 MB for email and 500 MB for documents. Paid plans increase storage and, depending on tier, add aliases, custom domains and mail-client protocols. Base costs €2.50/mo (annual) and includes 11 GB total storage, 5 GB for email and 10 aliases, but no custom domain or POP, IMAP, SMTP or EAS access. Entry costs €3.50/mo (annual), with 40 GB total storage, 10 GB for email, 50 aliases, custom domains and POP, IMAP, SMTP and ActiveSync. Pro costs €9.50 per month and includes 78 GB total storage, up to 100 aliases, custom domains, protocol access and priority support. Ultra costs €29.00 per month, billed monthly, with 225 GB total storage, up to 200 aliases, custom domains, protocol access and priority support. Mailfence is headquartered in Brussels, Belgium, and was founded in 1999.