8 Best Crab.fit Alternatives for Group Scheduling
Crab.fit is what When2Meet would be if someone rebuilt it this decade. Same paint-the-grid model, but with a live-updating heat map, automatic timezone conversion, a genuinely usable mobile layout, and no accounts or ads. It is open source, there is a native Android app, and it costs nothing.
It is also deliberately minimal. There is no calendar integration, so every participant fills the grid from memory. There is no way to hold onto a poll as a record, no recurring scheduling, and no path from “we found a time” to an actual invite on everyone’s calendar. Here are 8 Crab.fit alternatives.
1. Carly
Carly runs the same grid, with the one piece Crab.fit leaves out. Participants can connect Google Calendar or Outlook and their busy time fills in automatically, so the grid starts accurate instead of starting blank. Only free and busy is shared, never event details.
Gray cells are auto-filled from connected calendars. Teal intensity shows group overlap.
Timezones are handled automatically, the same as Crab.fit, and no account is needed to vote. Once a time lands, Carly can send the invite rather than leaving you to copy it across by hand. For one-on-one meetings there are free booking pages.
What makes it different from Crab.fit: Crab.fit is a beautiful blank grid. Carly pre-fills it from real calendars and then books the result, closing both ends of the process.
Pricing: Free Zapier-style workflows and scheduling; AI agents from $35/month
2. When2Meet
The original that Crab.fit modernised. Uglier, slower, and still perfectly functional. Worth knowing about mainly because some groups already recognise the interface.
Best for: Groups who want the classic and do not care how it looks.
Pricing: Free
3. LettuceMeet
The closest direct competitor to Crab.fit. Modern grid, strong mobile experience, and an optional Google Calendar overlay so you can at least see your schedule beside the grid while filling it in.
Best for: Groups who want Crab.fit’s polish with a calendar view alongside.
Pricing: Free
4. Rallly
Switches models, from painting a grid to voting on candidate times. Better when you already have three or four options and want a fast verdict rather than a full availability map. Open source and self-hostable.
Best for: Groups choosing between a few known slots.
Pricing: Free (open source)
5. Doodle
The commercial incumbent in the vote-on-times camp. Polished and universally recognised, at the cost of ads on the free tier and a one-active-poll limit.
Best for: Teams who want a link nobody has to ask about.
Pricing: Free with ads; Pro from $8.95/month
6. Framadate
Privacy-first polling from the Framasoft non-profit. No tracking, no account, self-hostable. Polls expire after 180 days by default, so treat it as ephemeral.
Best for: Groups who want the open-source stance with a non-profit host.
Pricing: Free (open source)
7. Xoyondo
More poll types than Crab.fit offers, including anonymous polls, sign-up sheets, and a message board attached to the poll. The free tier carries ads on the page participants visit.
Best for: Groups who need sign-up sheets or discussion alongside scheduling.
Pricing: Free with ads; Premium $29/year
8. Cal.com
Open-source scheduling infrastructure rather than a poll. Collective and round-robin event types, embeddable booking pages, self-hostable. The right answer when the group poll is one piece of a larger scheduling problem.
Best for: Teams who need booking pages and group coordination together.
Pricing: Free tier available; Teams from $15/user/month
Crab.fit Alternatives Compared
| Tool | Model | Open source | Auto timezones | Calendar sync | Sends the invite |
|---|---|---|---|---|---|
| Carly | Grid + email | No | Yes | Yes (auto-fill) | Yes |
| When2Meet | Availability grid | No | Yes | No | No |
| LettuceMeet | Availability grid | No | Yes | View only | No |
| Rallly | Vote on times | Yes | Yes | No | No |
| Doodle | Vote on times | No | Yes | Paid only | Paid only |
| Framadate | Vote on times | Yes | Partial | No | No |
| Xoyondo | Vote on times | No | Yes | No | No |
| Cal.com | Team availability | Yes | Yes | Yes | Yes |
What a blank grid costs
Crab.fit’s design choice is defensible: no accounts means no friction, and no calendar access means nothing to worry about. For a one-off poll among friends, it is close to ideal.
The cost shows up with recurring groups. Filling a week-long grid from memory produces conflicts that only surface after the poll closes, and someone still has to create the calendar event by hand once a time wins. Calendar-connected grids start from what your calendar already knows and book the result directly, which is the difference between finding a time and actually having the meeting scheduled.
More on group scheduling: When2Meet alternatives · LettuceMeet alternatives · Rallly alternatives · Doodle alternatives · Framadate alternatives · Group scheduling tools
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"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.
Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.
On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."
