Mobile device users are acquiring ever more discretion about the Apps they use, with 26 percent of Apps only ever getting used once after being downloaded. Analytics firm Localytics makes the claims in a report first picked-up by VentureBeat. The analytics firm uses the stats to stress that developers must focus on first impressions within pleasing user exeperiences.

Localytics studied the thousands of Android, iPhone, iPad, BlackBerry and Windows Phone 7 apps using its real-time app analytics service. It found one-time use rose considerably across 2010, from 22 percent in Q1 to 28 percent in Q4.

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