Twitter baught Cover app the famous Android app, this acquisition has many signification and refers to the desire of expanding to a larger Android users.
Cover learns which apps you use in different contexts and puts them right on your lockscreen for easy access. Automatically see different apps at home, in the car, at work, and when you’re out.
Despite the lack of information about the current value of the deal, the team posted on his blog some clarification to indicate they joined Twitter for further development of their ideas.

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