I built Trrip over the course of a couple weeks while planning for a 6+ month trip throughout SE Asia.
If you're like me and plan incessantly down to the hour, then I can tell you Trrip was specifically built with you in mind :).
Trrip is different because it thinks about your itinerary in two separate phases, editing and consuming, much like a Wordpress website.
Editing mode is only available to you, and each day is accessible in the UI to help you manage your itinerary in a chronological way. And then it's simply a lot of adding, moving, or deleting. More Info »
Once you're done editing, publish to a custom url (your-trip-name.trrip.co) so it can be consumed by other people. You can share it with clients, friends, family or the Twitterverse!
If the benefits aren't totally clear yet, let me try explaining it like this: would you rather use a hammer-like tool (Google Docs, Quip, Trello) to bang in a nail, or would you rather use a hammer (Trrip)? Both get the job done, but the experience would be a lot smoother with the hammer because it was designed specifically to bang in that nail.