Tooboo is an outdoor navigation app built primarily for Apple Watch. While most route apps rely on the phone, Tooboo runs independently on the watch with a lightweight vector map engine. Hikers and cyclists can navigate without constantly pulling out their phone. Designed around small-screen clarity, battery balance, and deep HealthKit integration. No ads. No unnecessary data collection. Built by the developer behind YaoYao, featured 90+ times on the App Store.