Density Altitude & Air Density

Complete rebuild. The app has been rewritten from the ground up for today's iOS. BUILT-IN BAROMETER The app now reads the barometer inside your iPhone and takes the real pressure right where you stand — no network, and no station kilometres away. Everything except the station lookup works with no connection at all. SESSION LOGGING Record how conditions change through the day, with a chart and CSV export. Name your sessions, log by hand or automatically, and see the change since the first reading — the number that tells you whether it is time to adjust. POWER CORRECTION BY STANDARD Choose between SAE J1349, SAE J607, DIN 70020 and ECE R85, so the factor matches the standard on your dyno sheet. WIDER RANGES Now −40 to 60 ºC, −500 to 10 000 m and 500 to 1500 mb. Values outside the old limits used to be clamped without warning, quietly giving a wrong result. Now the app tells you. FOR PRECISION SHOOTING Air density in grains per cubic foot. ALSO • Weather station data over a secure connection, with retry: the failure on cellular data is fixed. • A new screen showing where each reading came from and how old it is. • Choose which reading you want featured at the top. • Dark mode, landscape, iPad Split View, Dynamic Type and VoiceOver. • A new help screen that explains what each reading is for. • Analytics removed: the app no longer collects any data. • New icon.