A startup is a company designed to search for a repeatable and scalable business model, often based on a new technology idea. It is important for startups to validate their idea through market research, ensure they own the intellectual property, and build an initial prototype app with a small founding team of a developer, manager, and designer. Startups then typically seek angel investment, venture capital, or grants to further develop the prototype and fund initial operations. While startups offer benefits like autonomy and ownership potential, they also carry risks such as lower pay, long hours, and high failure rates if the company cannot produce a viable product and business model.