Multi SMS & Group SMS VS TextBlast Bulk SMS

SMS Caster - SMS Caster app enables users to select as many phone numbers as they want from the contact list to send a single text message to all of them without having to spend any money.

WhatsMany - Send personalised WhatsApp messages in bulk

SendSMSMessages.net - Group SMS Transferring Software helps in sending messages to any GSM technology based mobile devices, Android Mobile Phones or major windows based pocket PC mobile devices. The application sends multiple messages to multiple users without internet.

LoopMessage - LoopMessage is a perfect macOS tool for personalized mass messaging via iMessage/SMS, WhatsApp, Facebook Messenger, Telegram, Viber, and Skype.

Multi SmsSender - Multi SmsSender app contains features to assist users in sending a single text message to as many contacts as they want at the same time by selecting phone numbers from the contact list.

Porterhouse - Send mass iMessage and SMS texts from your existing number with a single click!