FLIGHT LOGBOOK vs E6B Flight Computer CFI Pilot

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E6B Flight Computer is the essential aviation calculator for student pilots, CFIs, and cockpit professionals. Built for PPL checkrides, cross country planning, and everyday flight operations — all offline, no internet required. AVIATION CALCULATORS 22 precision calculators covering every phase of flight: Wind & Navigation — Wind correction angle, heading & ground speed, crosswind & headwind components, course & distance between coordinates. Speed & Altitude — True airspeed (TAS), calibrated airspeed (CAS), density altitude, pressure altitude, true altitude, and cloud base estimation using ICAO standard atmosphere formulas. Fuel — Fuel required, endurance, point of no return, and equivalent still air distance. Performance — Weight & Balance with interactive CG envelope chart, top of descent, climb/descent gradient, and percent MAC. Time — Leg time, ETA calculator, and time/speed/distance solver. WEIGHT & BALANCE WITH ENVELOPE CHART Add crew, passengers, fuel, and baggage. The app computes total weight, total moment, and CG position — and plots it live on an interactive envelope chart. The tool every CFI recommends. UNIT CONVERSIONS 9 bidirectional converters: Temperature, Distance (NM/SM/KM), Speed (kt/mph/kph), Altitude (ft/m), Pressure (inHg/hPa), Weight (lb/kg), Volume (gal/L), Avgas weight, and Jet-A weight. COCKPIT CLOCKS & TIMERS Three simultaneous clocks — Zulu (UTC), Local, and Home timezone. Countdown timer with alarm, stopwatch with lap times for leg tracking. HOME SCREEN WIDGETS - Zulu Clock widget — always-on UTC time - Density Altitude widget — current conditions at a glance - Quick Converter widget LIVE ACTIVITY Flight timer countdown on your Lock Screen and Dynamic Island — no unlock needed. WORKS COMPLETELY OFFLINE No internet, no account, no server. Every formula runs on-device using pure ICAO Standard Atmosphere calculations. KEY FEATURES • 22 aviation calculators — wind, altitude, fuel, W&B, time • Interactive W&B envelope chart • Zulu / Local / Home clocks • Countdown timer & stopwatch with laps • Bidirectional unit conversions (NM, kt, inHg, Avgas, Jet-A) • Live Activity on Lock Screen & Dynamic Island • Home Screen widgets • Fully offline — no internet required • Built for PPL, CPL, CFI, and cockpit professionals SUBSCRIPTION INFORMATION Access to E6B Flight Computer requires an active subscription. All features — including calculators, W&B chart, conversions, timers, and widgets — are unlocked with a subscription. Subscription options are presented within the app. Payment is charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscription in your Apple ID account settings after purchase. Privacy Policy: https://github.com/MAAlsaleh0/E6B_Legal/blob/main/privacy-policy.md Terms of Use: https://github.com/MAAlsaleh0/E6B_Legal/blob/main/terms-of-use.md