Apps similar to SMS Proxy include Ozeki NG SMS Gateway. It's paid, but Secure SMS Proxy (S2MSP) is free. Other options are NowSMS and Mobile Broadband SMS Toolkit. In total there are four apps like SMS Proxy for Windows and Android.
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.
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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. NowSMS is an easy-to-install SMS Gateway, MMS Gateway, WAP Push Proxy Gateway and Multimedia Messaging Center (MMSC)...
You can send and receive SMS messages from your Windows computer or Windows Tablet, just like you would from a mobile phone.
:closed_lock_with_key: Secure way to support send and receive SMS for android applications on single phone number base.
