Based on our record, MessageBird seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
We built a subscription management chatbot, using Twilio for sending SMS, but it lacked a dashboard to view conversations. I've recently come across https://messagebird.com/en/ - they have a pre-built dashboard that allows your team to respond to messages, as well as a nifty flow builder. Source: almost 3 years ago
WATI - No-code chatbot builder for WhatsApp Business
Twilio - Brings voice and messaging to your web and mobile applications.
Whapi.Cloud - Integrate WhatsApp without limits to your own services or apps! Groups & Buttons, Technical support & Guides. API works stably and does not crash during updates. Whapi.Cloud is Developer-friendly REST API for WhatsApp integration
Plivo - Plivo simplifies your customer engagement.
Ultramsg - WhatsApp API by Ultramsg
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates