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SPECIFICTION
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BookTime vs Fastmail Calendar

BookTime

trybooktime.com

Fastmail Calendar

fastmail.com

Side by side

FigureBookTimeFastmail Calendar
Price fromFree$4/mo
Free planYes—
Free trial—Yes
Open source——
WebYesYes
Windows—Yes
macOS—Yes
Linux—Yes
iOS—Yes
Android—Yes
Plans published36
Spec score · Calendar apps7.7 (#132)9.0 (#11)
Calendar syncThe features page says connected accounts sync two ways, with changes reflected in near real time.two_way
Free planYesNo
SecurityThe privacy policy says BookTime uses commercially reasonable organizational, technical, and administrative security measures and cannot guarantee absolute security.Fastmail says data is encrypted at rest and in transit, supports two-step verification and passkeys, and offers EU or US data residency choices.
SupportThe privacy policy lists [email protected] as the contact for questions about privacy or data practices.Every plan includes expert support from real people, and the pricing page says support is available 24/7.

Plans

BookTime

  • Basic PlanPrice not published
  • Professional PlanPrice not published
  • Beta accessFree

BookTime pricing →

Fastmail Calendar

  • Basic$4 a month
  • Individual$6 a month
  • Standard$6 a month
  • Duo$10 a month
  • Professional$10 a month
  • Family$14 a month

Fastmail Calendar pricing →

In their own words

BookTime

BookTime has no write-up on Specifiction yet; its figures are above.

Visit trybooktime.com

Fastmail Calendar

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.

Visit fastmail.com