21+ years in creating GIS and navigation solutions, 24+ years in software development in general. Being pixel-perfectionists, HireRussians are fond of precious electronic positioning and beautiful geospatial data visualization. The list of apps we've worked on, essential functionality of which includes GIS and navigation features, is pretty long: city/country guides, sports, transport, employee management solutions, marketing tools, social networks, real estate ‘showroom’ apps, etc. Among others, HireRussians have built multiple mid and large-size mobile apps, navigating cyclists, hikers and runners through paths and/or visualizing their workout results on the map. One of the largest GIS systems we have developed is an indoor positioning system, today working in 15 000+ indoor public environments in the USA, which includes two Android, two iOS apps, a database and an online administrative panel. Positioning and navigation functionality could be based on GPS positioning, cell tower and Wi-Fi triangulation, creating databases of radio frequency ‘fingertips’, measured through the locations, and utilizing possibilities of the newest hardware (such as the iPhone’s 6 motion chip). As for the best Maps API’s for GIS solutions, these are, for sure, Apple and Google Maps.