How does Runway Analysis differ from ForeFlight's takeoff and landing performance feature?

Takeoff & Landing Performance calculation was introduced by ForeFlight in June 2019 for hundreds of single-engine piston aircraft. The Runway Analysis capability builds on top of that and is focused on multi-engine turbine and turboprop aircraft, which are certified to provide OEI performance data. Runway Analysis is not available for single-engine aircraft and most twin-engine piston aircraft due to the certification method used for such aircraft.