Tremendous - Tremendous is a customer and employee loyalty platform that allows companies to reward their customers for surveys promotions and referrals.

Twicca - Twicca is a Twitter client for Android that is simply awesome. Features: * Notification

Giftbit - Buy, send and track digital gift cards for your reward and incentive programs.

Flamingo for Twitter - Flamingo for Twitter is a bright and colorful Twitter client that comes with a simple interface.

Rybbon - Send digital e-gift cards as marketing incentives or rewards with Rybbon, which integrates with Marketo, HubSpot, SurveyMonkey, and Qualtrics.

Tweeticide - Tweeticide – Delete All Tweets is a commercial app that enables you to delete all of your tweets at once.