For those asking what makes them different, this blog post by their European investor Atomico may shed some light? Starts at paragraph 4 http://news.atomico.com

For those asking what makes them different, this blog post by their European investor Atomico may shed some light? Starts at paragraph 4 http://news.atomico.com/our-investment-in-messagebird-a-european-deep-tech-wunderkind-enabling-truly-global-cloud-communications-for-the-first-time/ http://news.atomico.com/our-investment-in-messagebird-a-euro...