Scheduling tool privacy ratings

Meeting scheduling and polls.

16 scheduling are rated against 9 public criteria, and 16 have enough evidence for a letter grade. Our pick is Cal.com. Of the 14 with a known jurisdiction, 11 are based in a Five Eyes country, and 12 in the wider Fourteen Eyes.

Open-source scheduling only · Criteria for this category · Suggest an addition · Markdown

Scheduling privacy ratings, sorted by pick and then by grade
Name	Grade	Score	Data	Jurisdiction	Open source	No trackers or telemetry	No ads or data sales	Independent audit	Transparency report	Tells users about requests	TLS configuration	Security headers	Modern web standards
Cal.com Our pick Hosted scheduling platform for booking pages, team round-robin, routing forms and workflows, with calendar and video conferencing integrations.	Grade F	38	100%	United States Five Eyes	No	No	Yes	Partial	No	No	Yes	Yes	Not tested yet
Cal.diy Self-hosted, MIT-licensed community edition of Cal.com for booking pages and calendar scheduling, with enterprise features such as teams, workflows and SSO removed. There is no hosted version.	Grade C	65	100%	–	Yes	Partial	Yes	No	Not applicable	Not applicable	Not applicable	Not applicable	Not applicable
Tymeslot Open source (AGPL-3.0), self-hostable meeting scheduling and booking platform. Guests book without creating an account, and hosts get two-way calendar sync with Google, Outlook, iCloud and CalDAV.	Grade D	59	100%	Estonia Outside Eyes	Yes	Partial	Yes	No	No	No	Yes	Yes	Not tested yet
Framadate Free online polling service from the French non-profit Framasoft for choosing a meeting date or deciding between options, without registration. Runs on the open source Pollaris software.	Grade D	53	100%	France Nine Eyes	Yes	Partial	Yes	No	No	No	Yes	No	Not tested yet
Easy!Appointments Self-hosted web application for booking appointments, written in PHP. Customers book online, and staff manage services, providers and schedules, with Google Calendar and CalDAV sync.	Grade D	50	100%	–	Yes	No	Yes	No	Not applicable	Not applicable	Not applicable	Not applicable	Not applicable
Crab Fit Free web tool for finding a time that suits a group. Participants mark their availability on a shared grid, and the results show when most people are free. No account is needed.	Grade D	44	100%	Australia Five Eyes	Yes	No	Yes	No	No	No	Yes	No	Not tested yet
Rallly Open source, self-hostable scheduling poll tool. Create a poll with date and time options, share the link and let participants vote on when they are available.	Grade D	44	100%	United Kingdom Five Eyes	Yes	No	Yes	No	No	No	Yes	No	Not tested yet
Cal.ai AI phone agent from Cal.com that makes scheduling calls to book meetings, confirm appointments, send reminders and follow up on no-shows, triggered from Cal.com workflows.	Grade F	38	100%	United States Five Eyes	No	No	Yes	Partial	No	No	Yes	Yes	Not tested yet
Microsoft Bookings Appointment scheduling service included in Microsoft 365 business plans, with public booking pages, staff calendars, email and SMS reminders, and Teams meetings.	Grade F	32	100%	United States Five Eyes	No	No	No	Partial	Yes	Yes	Not tested yet	Partial	Not tested yet
Acuity Scheduling Hosted appointment scheduling service owned by Squarespace, with client booking pages, intake forms, payments, packages, reminders and calendar integrations.	Grade F	28	100%	United States Five Eyes	No	No	Partial	No	No	Yes	Yes	Partial	Not tested yet
Calendly Hosted scheduling service that lets people book meetings through a shared link based on the host's calendar availability. Connects to Google, Outlook and iCloud calendars and video conferencing tools.	Grade F	25	100%	United States Five Eyes	No	No	Partial	Partial	No	No	Yes	No	Not tested yet
SavvyCal Hosted scheduling service with booking links that let invitees overlay their own calendar, plus meeting polls, team round-robin scheduling, payments and workflows.	Grade F	25	100%	United States Five Eyes	No	No	Yes	No	No	No	Yes	No	Not tested yet
YouCanBookMe Hosted scheduling service that turns calendar availability into customizable booking pages, with reminders, payments, team scheduling and calendar integrations.	Grade F	18	100%	United Kingdom Five Eyes	No	No	Partial	Partial	No	No	Not tested yet	Partial	Not tested yet
Doodle Hosted scheduling service for group polls, booking pages and one-on-one meeting invitations. Free accounts show ads, and paid plans remove them.	Grade F	16	100%	Switzerland Outside Eyes	No	No	No	No	No	No	Yes	Partial	Not tested yet
zcal Hosted scheduling service with customizable booking pages, unlimited links and calendars on a free plan, and paid features for teams such as collective and round-robin scheduling.	Grade F	13	100%	United States Five Eyes	No	No	Partial	No	No	No	Partial	No	Not tested yet
TidyCal Hosted booking page service from AppSumo's parent company Sumo Group, sold mainly as a one-time lifetime license, with calendar sync, paid bookings and group events.	Grade F	6	100%	United States Five Eyes	No	No	No	No	No	No	Partial	No	Not tested yet

Questions

What is the most private option among scheduling?

Our pick is Cal.com. Booking pages, team round-robin, routing forms and workflows with calendar and video integrations, in a hosted service. The MIT-licensed Cal.diy edition covers self-hosting on your own server.

How are scheduling rated?

Each entry answers 9 questions: open source, no trackers or telemetry, no ads or data sales, independent audit, transparency report, tells users about requests, TLS configuration, security headers and modern web standards. Answers need links to evidence. See the full criteria.

Does jurisdiction matter?

Jurisdiction decides which laws can compel a provider to hand over data. Each entry shows its country and whether it is in the Five, Nine or Fourteen Eyes. The data a provider can hand over depends mostly on what it stores and who holds the keys. Read about jurisdictions and the CLOUD Act.