Yes, there is a risk of getting banned on WhatsApp when using tools like WhatsApp Blaster, especially if you send a large volume of messages to unsaved contacts. WhatsApp’s official guidelines strictly prohibit the use of unauthorized automated or bulk messaging. You can review these guidelines here.
Delays, wording changes and saved contacts do not guarantee protection from a restriction. Follow WhatsApp’s rules and review the sending guidance before using the tool.
I’ve put together Guidelines for using WhatsApp Blaster to help you minimize the risk. You can find them HERE.