Sending SMS messages can sometimes be time-consuming. Adding a recipient and typing a text takes too much time. It is unlikely that your clients want to waste time typing an SMS to respond. This is where Short.io comes in handy.
Both iOS and Android have in-built apps for text messages. Short.io mobile links support a kind of deep link that redirects the user to apps that are already installed. This type of deep linking doesn't require modifications to a mobile application like the real deep-linking that we know.