How many different ways does one person need to post videos of themselves doing crazy things? Apparently, at least one more, if the folks at Qwiki have anything to say about it.

The San Francisco startup, which launched three years ago as a video publishing platform on the Web, is now available exclusively via a mobile app. Unlike the recently released Vine app from Twitter, Qwikis, as they are called, aren’t supposed to be short clips of one scene. Rather, they are to be used to tell a story using photos and videos already on your iPhone, of varying length.

To customize the videos further, users are able to add customized captions, filters, and a soundtrack. Qwikis are sharable via Facebook, Twitter, email, or SMS.

Take a look at this demo:

Qwiki iPhone App Demo – iPhone format from Qwiki on Vimeo.

Qwiki looks promising. Of course, the service’s success will largely be determined by just how many people find it and use it. You may download the app here.

See also: Amid Porn Controversy, Vine Changes Age Rating To 17 And UpHassle-Free Video Editing App Lumify Gets Biggest Update Ever With Version 3.0, and Give It Up For Givit Video Highlighter’s First Major Update.