Installed to give it a try. The UI is fine, a bit too flashy imo but that's ok for a game.
The game itselft was just not very fun, maybe it's meant to be played by many people at once ? i tried it alone, and it was either an instant guess or a long wait for the timer to end while the phone was bleeping. Maybe show 3 or 4 different mashups at once, and give them a shorter timeout ? Also, if this is a wrapped web app, why not just make it a website ? There are APIs in vanilla js to get speech recognition.