Wow. I tried the web interface first and fell in love. The app is even better. I believe there is also an iOS version. Very fast, no lag at all on a mediocre wifi connection. Perfect mashup of a dataspreadbasesheet. Or, is that spreaddatasheetbase? Whatever, this is a great collaboration tool. The ease of use, sharing, speed make this much more approachable than Google Docs or Office 365. Still lacking Excel export, but exports CSV fine, and Excel gives me hives anyway. Only complaint so far is that the theme colors are too intense at the top window/header area. Otherwise, totally awesome and free for small databases and very reasonable pricing for larger endeavors. I really hope my collaborators like this as much as I do!