Christian Reber sold his first start-up and the Wunderlist app to Microsoft for $200 million. Now he talks about his failure – and the toxic start-ups culture.

“I crashed”, Reber tells Tagesspiegel on the hustle culture of the start- up scene. Read the manager magazine and the Harvard Business Manager as an e-paper in the manager app for just €24.99 per month. To use manager+ outside of this app, you must link the subscription to a manager ID account.