ChatGPT & Claude
Connect WhenNOT and ask in plain words. It checks the calendars you've connected and answers with real times, right in the chat.
Connect an assistantFree group scheduling polls + booking pages
Find the time everyone can make — or let anyone book yours.
Group polls where people cross out the days they can't, and booking pages that read every Google and Microsoft calendar you have. Free. No sign-up for guests.
- No account needed to start a poll
- No sign-up for guests
- Google & Microsoft calendars
Works with
- Google Calendar
- Outlook & Microsoft 365
- Google Meet
- Microsoft Teams
- Slack
- ChatGPT
- Claude
Group polls
Find a time. Not a thread.
Nobody remembers when they're free. Everybody remembers Tuesday is football. So WhenNOT asks the easy question — which days can't you make? — and “maybe” counts as half.
- Pick the dates you'd considerWhole days, or time slots inside a daily window. Say how many days in a row you need.
- Send one linkPeople tap the days they can't make. No account, no app. Connected calendars pre-cross busy days.
- Pick the winner, everyone gets the inviteWhenNOT ranks the dates with the fewest conflicts. You choose one; it goes into everyone's calendar.
Create a group poll — freeNo account needed
Try it: you're the fourth person
Thu 19 – Sat 21 Nov · nobody crossed these out
Nobody outOut 1 → 4 peopleBest 3 days in a row
The film
Forty messages, or one link.
A group chat trying to agree on a weekend — and what happens when somebody sends a WhenNOT link instead.
Booking pages
A booking page that knows when you're actually busy.
Share whennot.com/m/you. WhenNOT reads every Google and Microsoft calendar you connect, offers only the hours you're really free, and puts the meeting link on the invite.
- Every calendar, read honestlyWork, personal, Outlook — several accounts at once. Events your calendar marks as free don't block you.
- Several hosts on one pageOffer a time when any host is free, or only when all of them are. Guests always see who they got.
- Meet or Teams on the inviteThe video link is created with the event. Reminders go out a day and an hour before.
- Guests manage their own bookingEvery confirmation has a reschedule and cancel link. A declined invite frees the slot by itself.
- Buffers
- Split hours
- Date overrides
- Custom questions
- Your colours
- Signed webhooks
Ask to reschedule
And when you're the one who can't make it.
You never move a guest's meeting by force. You ask, they choose from the times you offer, and the same invite updates for both of you.
- You askPick a few times that really work and add a line of explanation.
- They pickYour times arrive as one-tap buttons, with your live page as a fallback.
- It movesThe invite updates in place. No new thread, no second booking.
Free, really
No plans, no paywall, no ads.
Group polls and booking pages in one free tool. We compare what each tool does, not what it costs — prices change, and every row below has a source.
| Capability | WhenNOT | Doodle | When2meet | Calendly | Cal.com |
|---|---|---|---|---|---|
| How a group answers | Cross out what you can’t | Vote on options | Paint free times | Meeting Polls (vote) | No |
| Ranks the best dates for you | Fewest conflicts first | Shows votes, you pick | Shows overlap | Shows votes, you pick | No |
| Guests answer without an account | Yes | Yes | Yes | Yes | No |
| Organiser can start a poll without an account | Yes | Account needed | Yes | Account needed | No |
| Personal booking page | Yes | Yes | No | Yes | Yes |
| Booking page reads several calendars, free | Google + Microsoft | Not stated | No | One on Free | Yes |
| Polls and booking pages in one free account | Yes | One booking page on Free | No | One event type on Free | No |
Checked October 2026. Free tiers and plan limits change — follow the sources.Sources: When2meet event planner · Doodle participant accounts · Doodle organizer accounts · Doodle Free and Professional · Calendly Meeting Polls · Calendly plans · Cal.com features and plans
What people plan with it
From the team retreat to Thursday's rehearsal.
Group pollTeam retreatThe three days the whole team can travel, ranked by fewest conflicts.Team retreat planner
Group pollGroup tripTen friends, one long weekend, and nobody keeping a spreadsheet.Group trip planner
Group pollDinner or birthdayThe one evening everyone can come, settled from the group chat.Plan a dinner
Booking pageSales & client callsYour real free hours, a Meet or Teams link, and the questions you need answered.Set up a booking page
Booking pageTutoring & coachingStudents book and reschedule themselves. You keep buffers between sessions.Set up a booking page
Group pollClub or band rehearsalsTime-slot polls for evenings, with “maybe” counting as half.Plan rehearsals
Everywhere you already are
Ask in a chat. Answer in Slack. Glance at your phone.
Slack
Type /whennot in any channel to start a poll. People answer with buttons, without leaving Slack.
Add to SlackiPhone & Android
Home Screen widgets, a Live Activity that counts down to your next call with a Join button, and your phone's calendar read on the device.
See the appsIs WhenNOT really free?
Yes. Group polls, booking pages, calendar connections, the Slack app and the ChatGPT and Claude connectors are all free. There are no plans, no paywall and no ads.
Why is it free?
WhenNOT is made by Hernas OÜ, a small software company in Tallinn, Estonia. We run our own companies' calls and plans on it, so we would build it anyway. It has no ads, and we don't sell your data.
Do the people I invite need an account?
No. Guests answer a poll or book a time from the link, in any browser. You don't need an account to start a poll either; you need one to run a booking page, because it has to read your calendar.
Which calendars does it read?
Google Calendar and Microsoft 365 / Outlook — as many accounts as you connect. For polls it can cross out your busy days for you; for booking pages it hides the hours you're busy. Events your calendar marks as free are ignored.
How does it handle time zones?
Everyone sees times in their own zone. A poll host in Tallinn and a guest in New York look at the same slot, each in local time, and the invite lands at the right instant for both.
How is it different from Doodle or When2meet?
Those ask you to mark every time you're available. WhenNOT asks you to cross out the few you can't, which is quicker and rarely ends with no overlap. It also has booking pages, so one tool covers both jobs.
Who can see my answers?
Polls show first names only by default, and the organiser decides who sees results. You can delete your answers, or your whole account, at any time.
Your next plan is one link away.
Start a group poll in under a minute, or set up the booking page your clients have been asking for.
No account needed to start a poll · No sign-up for guests