GetChat.App - Add WhatsApp chat to your website for free
ChatWhale - Gamify your customer communication and loyalty rewards
BlueReceipt - Text marketing customers love ❤️
SendSMS.global - SMS Marketing Platform
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.
Open Loyalty for Startups - Open source stack for building customer focused products