This document provides lessons learned from startups. It discusses how the design of SafyYaLaban and Baralbait may not have been cool but should focus on usability. Knowing the audience is important, as Baralbait was mainly a website without proper mobile support. Content is king, and applications should grab content from other sources while also providing incentives for user contributions. A startup's application shouldn't keep content isolated and should promote itself on social media. The business and strategy should follow what users want through the use of APIs and by being flexible to morph over time.