Does a PRO tool for coverage maps visualization exist ?

Yes. This tool is mainly intended for mobile operators. It has been integrated into an existing cockpit that already includes internet performance statistics from all operators in a country, as well as access to speed-test results and coverage data. These data can be visualized by applying filters by technology (no coverage, 2G, 3G, 4G, 4G+, 5G) over a configurable period (only the last 2 months for example). It's a great tool to track the deployment of new technology, monitor competitors and identify poor signal coverage areas.