Lifesum, a Swedish digital health startup founded in 2008 and headquartered in Stockholm, aims to improve users' health and happiness through applied psychology and technology. Initially launched as a calorie-counting tracker named Shapers Club, it has evolved into a comprehensive health app offering weight loss and nutrition support, boasting nearly 26.5 million users globally. With over $10 million in Series B funding, Lifesum is transitioning from a startup to a more established organization, supported by a team of 65 employees across various functions. The app is primarily free, but a premium version offers specific nutrition and diet plans. Lifesum's development process includes regular feedback collection through social media, support teams, and focus groups, with GitHub used extensively for product management and issue handling. The company employs a dedicated QA team for testing and utilizes Luciq to streamline bug reporting and feedback processes. Lifesum maintains a bi-weekly release cycle, prioritizing features based on user feedback and company goals, and emphasizes simplicity and efficiency in its operations and development strategies.