DriveMate KingKong is a retro-style speedometer app designed for iPhone users, utilizing GPS functionality. It features a unique speed warning alarm that triggers an alert when the vehicle surpasses the preset speed limit. Named after the nostalgic "dingdong" alarm sound from Japanese vehicles of the past, this app aims to enhance awareness of speed while driving, cycling, or jogging.

The app includes a speedometer that displays real-time speed based on GPS signals, allowing users to switch between km/h and MPH units. It also offers a speed warning alarm system with customizable settings and a distance tracker to monitor traveled distance. Additionally, the app provides indicators for GPS signal reception and low battery warning.