Think about the difference when you receive a text message versus when you receive an email - Everyone pays more attention, and that attention is what we as businesses need. Email has to content with spam folders, bypassing the inbox, and terrible open rates - SMS has none of these issues. If you can can collect phone numbers then you can propel your business to success.

A person visits your website on a desktop computer or laptop

They enter their phone number into the Textlinky widget

They receive a text message that links them straight to your app
The long and short of all this is, you get more downloads. More downloads means more customers, more customers means more revenue, it's a metric that can change your whole business, so don't waste another second.