robertr - yes an actual phone SMS. i will have a table with a field for opt-in and a cell phone number. i want to select the records that opt-in and have the ability to create and send a text message to those records. that is the primary reason for my application. thanks for the follow-up. i have a quote to have the app written in PHP/MySQL but am exploring using an app development tool for more flexibility.
reviewing phprad simple apps. have a need for an app that will collect contact info via an online form, an opt-in field can be selected in the form to receive messages via SMS, then the app user would be able to select list of all opt-in submissions and send an SMS message. is there an existing function or implementation of an API for SMS messages?