RPN Calc vs Artificial Horizon Usage & Stats

Main features: - Artificial Horizon (actual pitch, roll) - Altimeter (QNH/FL) - ground speed - GPS coordinates - compass with yaw correction and optional desired heading Flight Tracker: - track flight paths (speed and altitude) - visualize multiple flight paths WIKIPEDIA:  [...]The Artificial Horizon is a flight instrument that informs the pilot of the aircraft orientation relative to Earth's horizon, and gives an immediate indication of the smallest orientation change. The miniature aircraft and horizon bar mimic the relationship of the aircraft relative to the actual horizon. It is a primary instrument for flight in instrument meteorological conditions. The essential components of the Artificial Horizon include a symbolic miniature aircraft mounted so that it appears to be flying relative to the horizon.[...] https://en.wikipedia.org/wiki/Attitude_indicator Use of 'Artificial Horizon' is not an FAA approved method of flight path navigation decisions. 'Artificial Horizon' NEVER replaces a pilot's decision. 'Artificial Horizon' can be used to support pilot training.