XE.com - XE.com Inc. (XE) is a Canadian online foreign exchange services company.
Exploratu - Exploratu is an app that converts prices in real-time through the camera and its optical character recognition (OCR) algorithm.
Yahoo! Finance - Currencies Center - Currency Converter from Yahoo! Finance.
Crypti - A minimal cross-platform Bitcoin price widget
Tweetbot - Sync your timeline across your iPhone, iPad, and Mac. Mute tweets by user, hashtag, tweet source, or keywords (including regex). 3rd Party support for image, video, read later, and timeline sync services.
Coin Demo - Visual demonstration of how bitcoin transactions work