RapidText is a text messaging platform that helps businesses and organizations communicate quickly and easily with their customers, employees, and partners. It enables users to create and manage automated text message conversations, as well as send and receive individual messages. RapidText also includes features such as a powerful editor, message scheduling, message segmentation, and contact management. RapidText also offers a suite of analytics tools to help measure the effectiveness of text message campaigns. RapidText is available as an app for iOS and Android devices, as well as a website.
YAATA SMS
GO SMS Pro
Auto SMS (Autoresponder)
SMS Scheduler
FutureText
Schedalls
SMS Later
Discontinued It appears that the app is no longer updated. The latest version, 1.2.0, released in January 2012, can still be downloaded from the Google Play Store.