1. 21Twelve Interactive :
21Twelve Interactive is a professional mobile application developer based in Russia. We offer IT experts that fit perfectly into your team. Every week, we deliver consistent results through improved processes. Our main areas of activity are business, education and the gaming sector. We are a global mobile application development company that helps business owners and entrepreneurs increase their revenue by developing personalized mobile solutions.
Our customers say we know our work, whether it’s design, coding or back-end. It is a pleasure to know that we have already passed many of our customers to solve the problems they faced.