Eventative Turns Tentative Plans Into Critical Mass

A two-man bootstrapped start-up called Eventative recently got our attention with a pitch that tackles a somewhat novel part of event planning and online invitations.

Rather than alternatives like Evite (annoying), Facebook Events (social), Paperless Post (pretty) or good old email, Eventative is a Web and email service for fostering critical mass for a yet-to-be-confirmed event. So, for instance, you could post via Eventative that you’re tentatively planning to host a brunch at your house this Saturday morning as long as six of your friends agree to sign up.

Respondents can effectively reply “I’d do this if enough other people will too,” or just not respond to the invitation email, which founder Bret Kugelmass said he thinks is a more comfortable alternative to the standard yes, maybe or no. Kugelmass describes Eventative as “tipping point-based event planning.”

But Eventative is still very beta — at this point there’s not even a way for users to suggest multiple date or time options for a TBD event.