This does not solve the two issues I have with doodle:

- The creator is the only person with permission to add alternatives (both for their "Make a choice" and "Find a date" features)

- There's no way to limit the number of responses from each participant - e.g. each user need to select their 3 most preferred time slots.

Also this app, contrary to Doodle, requires you to select time slots, whilst with Doodle one can just decide on dates (and the time is optional). I also quite like the "Yes/No/If-needbe" feature that Doodle provides and I'm disappointed about the binary view of event planning this application takes.