A new startup is harnessing the power of the crowd to help entrepreneurs and tech companies do their jobs better. Testbirds, a German crowdtesting company, just raised €2.1 million ($2.9 million) as its first institutional funding, with French venture capital firm Senventure Partners leading this round. It’s also releasing a new product, BirdFlight, which enables customers to distribute and test their apps with their own testers.