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Crab Fit vs LettuceMeet

Price, platforms and features side by side. The table says where each price was read and when.

Crab Fit

Free, open-source availability heat map for group events

Free

LettuceMeet

Free availability poll for finding a time a group can meet

Free

Where they differ

  • Crab Fit is free. LettuceMeet is free.
  • Only Crab Fit lists an Android app.
  • Only Crab Fit lists a browser extension.
  • Crab Fit is open source and self-hostable, according to its own site.
  • LettuceMeet also covers calendar.
In commonFree planWebSurveys

At a glance

Crab FitLettuceMeet
PricingFreeFree
Starts atFreeFree
Free planFree with no account. The privacy policy says the service is provided at no cost, and the site asks for donations so that it can stay free for everyone.The site describes itself as 100% free with no account required, and lists no paid plan. Its cookie notice says marketing cookies are used to show customized ads.
Free trialNone listedNone listed
Web
Android
Browser extension
Made byBen GrantLettuceMeet
Price read fromcrab.fitlettucemeet.com
CheckedOct 9, 2026Oct 9, 2026

Who each one suits

Crab Fit

  • Friends, clubs and coworkers picking a time for a one-off event
  • Groups whose members should not have to create accounts
  • People who want to run their own scheduling poll server

LettuceMeet

  • Study groups, clubs and teams picking a meeting time
  • Organizers whose invitees should not need an account
  • People who want to see their own calendar while marking availability

Worth knowing

Crab Fit

  • Events are deleted after 3 months of inactivity, so it does not keep a long-term record.
  • The mobile app is for Android only; no iPhone app is listed.
  • Extensions are offered for Firefox and for Safari on Mac. The project's code notes that the Chrome extension was removed.
  • It needs a connection: the app's own message says a Crab Fit does not work offline.

LettuceMeet

  • Web only: the site lists no mobile or desktop app.
  • Meetings can be edited only by registered users; guests who try are prompted to sign up.
  • The cookie notice says marketing cookies are used to provide customized ads.
  • The privacy policy in the app was last updated on April 24, 2018.

Key features

Crab Fit

Events created in one form
Name the event or leave the name blank to have one generated, pick specific dates or days of the week, drag out a time range and choose a time zone. There is no sign-up step.
Live availability heat map
Responses appear live on a heat map where darker cells mean more people are free. Hovering or tapping a slot shows who is available, and names can be clicked to view people individually.
Google and Outlook calendar import
When entering availability you can sync with Google Calendar or Outlook Calendar, or reuse a recent event. Importing overwrites the availability you had already entered.
Time zone handling
Each event stores the time zone it was created in, and a respondent can switch to their detected local time zone. Hours outside the event are greyed out.
Name and optional password per event
Respondents enter a name for each event and can add a password to stop others changing their availability. The site says passwords are hashed.
Open source and self-hosting
The code is published under the GNU GPLv3, and the repository links to a guide for running your own instance.

LettuceMeet

Availability polls shared by link
Pick a range of dates or a single day and the hours to choose between, then share the meeting link. Everyone's availability is overlaid so the best slot is easy to spot.
Guest responses
People can continue as a guest to add their availability without signing up. An email address given by a guest is used only for updates about that meeting.
Google and Outlook calendar connection
Registered users can connect a Google or Outlook calendar to see their events underneath the grid while filling in availability. LettuceMeet says it never stores event information.
Group and one-on-one meetings
A meeting is created as Group, for three or more people, or as One on One, for the organizer and one other person. The One on One type is labelled beta.
Meeting length limit
An advanced option limits the scheduled meeting time to a set length, from 30 minutes to 3 hours in half-hour steps.
Profile and notifications
With an account, meetings you created or responded to are listed under your profile and can be changed later, and you are notified when someone responds or a meeting is scheduled.

Plans

Crab Fit

  • Crab Fit$0

    The complete web tool, the Android app and the Firefox and Safari extensions. Donations are optional.

LettuceMeet

  • LettuceMeet$0

    Group and one-on-one (beta) meeting polls, with an optional free account for calendar connection, editing meetings and notifications.

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