Yesterday we announced our new WordPress plugin for monetizing user registrations with Fortumo Premium SMS services. This plugin use the same payment method (Fortumo), as our other plugin, SMS Read More (check it out).
How this work?
When vistior browse your WordPress register page, below standard registration field he will see new input field: SMS registration code. Below that, there is SMS sending instructions displayed. When user sends SMS message, he will soon get reply message containing registration code.