Meet the top 7 app makers of 2011

You may not know all their names, but you've likely fooled around with their software. Meet the powerhouses raking it in selling those byte-sized apps.

Global mobile app downloads will reach nearly 18 billion this year with sales of $15.1 billion, nearly triple last year's revenues, according to Gartner Research. Here, Fortune profiles some of the most successful entrepreneurs in this thriving market, from an Internet giant in Mountain View, California to a game company in Helsinki, Finland pushing the envelope one byte at a time.

By JP Mangalindan - Last updated September 26 2011: 12:05 PM ET
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