Why is Mobile Keyword Marketing so good and fit for your business? Simply because you can increase your read rate by as much as 90% and response rate by 25%. People opt-in when they choose to subscribe to a keyword, increasing the relevance of the people who will receive information from a business. People can also unsubscribe anytime and this level of control is why mobile marketing is more impactful to end-users than direct mail, email marketing, and other traditional marketing channels.