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 ❤️
Carrd - Simple, responsive one-page site creator.
Mailify - Mailify offers email marketing software application to design, create and send email marketing campaigns.
mmm.page - Dead simple, drag & drop personal websites