GetChat.App - Add WhatsApp chat to your website for free
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
BlueReceipt - Text marketing customers love ❤️
Live Chat by Landbot - Live chat that combines chatbots with human chat
Textedly - Textedly is an SMS marketing communications channel that allows to advertise, promote, announce, and engage with audience through text messaging directly to cell phones.
GoSquared Live Chat - Beautiful, simple, and free live chat for your website