AXIOS - Grindr has hired the founders of Athena, a 2-year-old fitness community app. Athena co-founder and CEO AJ Wolf is joining Grindr as a senior manager of product finance, while co-founder and technology chief Max Roche is joining as a senior iOS engineer. Grindr has not acquired any of Athena's assets. According to CEO George Arison, Grindr aims to expand its app features into areas like travel and health.