NowSMS is described as 'The Now SMS/MMS Gateway (NowSMS) is an SMS and MMS Content Delivery Solution. NowSMS is a fast track to deploying and developing SMS, MMS and WAP Push solutions'. There are seven alternatives to NowSMS for a variety of platforms, including Online / Web-based, Android, iPhone, Windows and Linux. The best alternative is XendApp, which is free. Other great apps like NowSMS are Swift SMS Gateway (Paid), Targlets.com (Paid), IndiaSmsWala (Paid) and Ozeki NG SMS Gateway (Paid).
XendApp provides a messaging gateway for reaching public or internal users through applications for a variety of devices. Messages can be sent directly from http://xendapp.com web site or through any of the existing web services that the web site have.
Bulk SMS or Bulk Messaging is used by companies, enterprises, banks, schools, and small businesses. Bulk SMS is used for sending sms (short message service) to mobile no. Bulk SMS is used as promotional sms for sms marketing.
Ozeki NG SMS Gateway is a powerful, reliable and flexible SMS Gateway application. It enables you to send/receive huge amount of SMS and MMS messages from Microsoft Windows-based computer to mobile devices.
SMGS is a SMS enterprise-class gateway interacting with multivendor SMSCs through dedicated ESME protocols including MPP,CIMD2,UCP etc .., as well as multiple SMS/WAP push proxy gateways or SMS gateways via TCP/IP.