Doodle is a simple, new-age tool tool for scheduling meetings on the go! You can schedule 1 on 1 meetings with outside parties, without guessing or asking about availability. You can even open up a time-block on your calendar and allow fixing of appointments on first-come first-serve basis. You can schedule across multiple calendars, work with direct plugins for Google and Outlook Calendars and also avail of advanced integration with Doodle-API. For larger groups of 3+ people, you may invite anyone to take a Doodle poll and they can respond with their availability, no matter what calendar they use. This “universal” access lets all Doodle guests participate, no sign-in required.