Hover Engine TryOut

Hover Engine TryOut adds massive race-engine sounds to your hoverboard, hoverkart, or self-balancing scooter. It runs in the background and uses your iPhone's motion sensors to detect speed and generate engine roars that sync with your ride. It’s designed for Bluetooth audio hoverboards, so the sounds come from the board, or you can use the iPhone speaker on non-audio boards.

Manual Mode (free) lets you try three engines — V4, V6, and V8 — plus horn FX and the ability to export sounds. Hover Mode (in-app purchase) auto-matches sounds to your driving, with auto throttle, brake, gear shifts, and tire skidding, plus quick horn taps and export options for hover-action videos. Always drive safely and keep your iPhone secure in your pocket.