App intelligence company AppDynamics has secured $158 million in growth financing led by General Atlantic and Altimeter Capital. In conjunction with the investment, GA's Robert Swan will join the Board of Directors. AppDynamics’ Application Intelligence Platform enables software-defined businesses to proactively monitor, manage and optimize complex software environments. The company previously raised a $120 million round in July of last year that generated a valuation of $1.06 billion. Existing investors IVP, Greylock Partners and Lightspeed Venture Partners also participated in the new round.