||This article includes a list of references, but its sources remain unclear because it has insufficient inline citations. (July 2012)|
|Founded||San Francisco, California (March 2007 )|
|Founder||Monique Farantzos, President & Chairman, Jon Lech Johansen, CEO|
|Headquarters||San Francisco, California|
The doubleTwist application enables users to send photos and videos to their friends and sync their media library to a wide variety of portable devices.
DoubleTwist Media Player is available across many platforms. A free download is available on the company's homepage. It looks similar to Apple's iTunes media player, but with a few differences (such as the location of the album artwork).
DoubleTwist Media Player is an application available for Android devices. It is compatible with iTunes and Windows Media Player, allowing users to sync movies, pictures, music, and playlists to their mobile device through USB. The software, free of charge, is available in the Android Market. As of 2 March 2013, doubleTwist Media Player is in version 1.8.6 and has between 10,000,000 and 50,000,000 downloads.
AirSync is an additional application that runs through DoubleTwist Media Player allowing for wireless media syncing using a shared wifi connection. It is available in the Android Market for $4.99. It is not required for media syncing. Once the Android device and a computer are on the same wireless network, the software is paired to the device using a unique 5 digit code. During a given media sync, the screen lock is disabled and media cannot be accessed through DoubleTwist Media Player until completed 
On Friday June 5, 2009, “The Cure for iPhone Envy” billboard ad was put up on the BART exit outside the flagship San Francisco Apple Store. DoubleTwist's contract with BART’s ad agency specified that the ad would go up on Monday morning, the day of the Apple Worldwide Developers Conference keynote. However, the ad agency put the ad up early, on the Friday before. Shortly after the ad was put up, it was taken down by a BART employee. BART cited several advertising criteria violations as reasons for the ad being removed, including the original being too dark, and the subsequent redesign inappropriately having a white background. With Apple being a multi-million dollar client of BART, it is widely suggested that Apple pressured BART into removing the ad.
- DoubleTwist puts a twist on media-sharing
- DoubleTwist Air Sync website
- Bobbie Johnson (June 17, 2009). "A fresh twist on gadget compatibility". guardian.co.uk. Retrieved July 20, 2012.
- Article in AdAge on doubleTwist's ad campaign
- Picture of BART employee ripping down doubleTwist ad
- Blog post by doubleTwist co-founder on the story behind the doubleTwist ad
- Article in TechCrunch on doubleTwist ad
- Article in TheAge on doubleTwist ad
- Official website
- "Company Secures Funding from Index Ventures and Northzone Ventures". Reuters. February 19, 2008.
- Eliot Van Buskirk (February 2008). "DoubleTwist Adds Vital Missing Elements to iTunes and Facebook". Wired.
- "Hacker's firm doubleTwist enables copying of iTunes". Reuters. February 19, 2008.