YDIS Smart is a specialized application designed by Yamaha Motor Co. Ltd. to facilitate inspections of Yamaha outboard motors. It allows users to access certain functions of the Yamaha Diagnostic System (YDIS PC version) on their smartphones. This app is exclusively intended for use by Yamaha authorized dealers for servicing customer outboard motors.

To utilize YDIS Smart, service staff must have a dedicated adapter and registration information for the main software. The app requires the GPS function for speedometer display, an internet connection for registration and usage, and Bluetooth activation on the smartphone. Users are advised not to operate the app while the boat is in motion to avoid accidents. Yamaha Motor Co. Ltd. collects specific user and engine data for statistical analysis and service enhancement purposes.