Ninja Forms Text Message Notifications GPL Extension Overview:

Send text message notifications to a site administrator when a form has been submitted.
Don’t miss a thing – stay up to date with instant text message notifications whenever someone fills out a form.

Ninja Forms Text Message Notifications GPL Extension Features:

• Send *free* text messages (incoming text messages prices are still based on your carrier) to an administrator when form is completed.
• 20 of the most popular carriers work out of the box
• 100+ more carriers by adding a snippet of code (example provided)
• Developer friendly with a list of hooks