Apps like GSM Modem (SMS)

Here are some great alternatives to GSM Modem (SMS) by Sindhi Developers :
Bulk SMS Software Mobile help
Bulk SMS Software Mobile help
★3.5
Telerivet Gateway
Telerivet Gateway
★3.7
Messenger SMS - Text messages
Messenger SMS - Text messages
★4.2
Messages Lite - Text Messages
Messages Lite - Text Messages
★4.1
Bulksmsplans - Unlimited Sms
Bulksmsplans - Unlimited Sms
★3.5
Messages: Private messaging
Messages: Private messaging
★4.3
SMS Receive Phone Numbers
SMS Receive Phone Numbers
★3.2
Write sms by Voice all languag
Write sms by Voice all languag
★4.3
Messages
Messages
★4.3
Messages : SMS & Private Chat
Messages : SMS & Private Chat
★3.8
Messages - all in one chat app
Messages - all in one chat app
★4.4
MAXSIP
MAXSIP
★4.0
Text Messenger
Text Messenger
★4.2
Messages
Messages
★3.7
SMS Texting from Tablet & Sync
SMS Texting from Tablet & Sync
★4.3
Salesmsg - SMS & Calling
Salesmsg - SMS & Calling
★4.5