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: 12 months ago
Clickatell - Simple, reliable mobile messaging cloud.
Sonar - 2-way chat with your customers over SMS and FB Messenger
ShoutOUT - All in one business texting tool to send personalized alerts, promotions, reminders, short links and marketing campaigns, for any SMEs (hotels, restaurants, education, non profits, Woocommerce, banks, healthcare, agencies, supermarkets, weddings)
Adamant Messenger - The most secure and anonymous messenger, encrypted with Blockchain
Trumpia - SMS Marketing and Marketing Automation software for Mass SMS, internal communications & emergency alerts. #1 Text Messaging Service used by Fortune 500s.
Tlkn - Beautiful, super simple VOIP App for iOS and Android