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: about 3 years ago
OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.
Twilio - Brings voice and messaging to your web and mobile applications.
PushBots - Light SDK for mobile push notifications
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
iZooto - Engage your mobile and desktop web users with intelligent web push notifications.
Plivo - Plivo simplifies your customer engagement.