Based on our record, Fonoster 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.
There's a service that's open source for full on features if that helps, here it is: https://fonoster.com/. Source: 11 months ago
Sonar - 2-way chat with your customers over SMS and FB Messenger
Tatango - Tatango is a mobile messaging platform for agencies.
Sendblue - Programmatically send iMessage and SMS
Postscript - Like Mailchimp for SMS
Tlkn - Beautiful, super simple VOIP App for iOS and Android
Business Texting - Business Texting is an automated business messaging software that will allow your business to engage more customers and boost sales.