Google offers free voice to text engine APIs and constantly listens on your phone for "hello google" or however their phrase goes. So if it is constantly listenning to you anyways, why not also filter for other keywords like "buy" "like" "want" ?
Google offers free voice to text engine APIs and constantly listens on your phone for "hello google" or however their phrase goes. So if it is constantly listenning to you anyways, why not also filter for other keywords like "buy" "like" "want" ?