Heysan was a free mobile messaging and community based in San Francisco, California. Initially Heysan provided free messaging between phones and computers, bridging IM with SMS. The service expanded into launching a mobile community and has over 1 million users doing tens of million of monthly messages. In the summer of 2007 Heysan raised a seed round from Khosla Ventures and Atomico, the venture funds of Vinod Khosla and Niklas Zennstrom. Heysan was acquired by Good Technology in May 2009.
Heyzap (acquired by Fyber for $45m in 2016) is one of the largest…
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