TrueCourse E6B Flight Computer
Aviation Calculator for Pilots
$9.99
The trustworthy E6B: validated FAA formulas for wind, airspeed, altitude, fuel, and weight & balance. No subscription, no ads, works offline on every Apple device.
TrueCourse is a modern E6B flight computer for student pilots, GA pilots, and CFIs — the digital "whiz wheel" you're taught to use for the FAA knowledge exam and every flight after it.
Every number is computed from validated, published formulas (FAA-H-8083 handbooks and the ICAO Standard Atmosphere) — so you can trust it on a checkride and in the cockpit. Buy it once. No subscription, no ads, no account, no network required.
WHAT IT SOLVES
• Wind triangle — heading, groundspeed, wind-correction angle, and crosswind/headwind components, with a live vector diagram. Derive winds aloft from measured track and groundspeed.
• True airspeed & Mach — TAS from CAS with pressure altitude and temperature; Mach and speed of sound.
• Altitude — density altitude, pressure altitude, true altitude, cloud base, freezing level, and pivotal altitude.
• Nav log — time, speed, and distance; ETE and ETA.
• Fuel — burn, endurance, specific range, and required fuel with weight.
• Climb & descent — required rate, top of descent, climb gradient (ft/nm · % · degrees), and glide distance.
• Weight & balance — CG and moment with an envelope check, plotted on a CG chart with takeoff-to-landing fuel-burn travel.
• Convert — the aviation units you actually use: kt, mph, nm, sm, km, ft, m, °C, °F, gal, L, lb, kg, inHg, and climb gradients.
• Clock & timer — Zulu and local time with a count-down timer.
BUILT FOR THE FLIGHT DECK
• A glass-cockpit design with large, monospaced, sunlight-legible readouts.
• A night (red-shift) mode that preserves your dark adaptation.
• Every input field shows its valid range, so you can't enter a value that doesn't make sense.
• Universal: one purchase runs on iPhone, iPad, and Mac, with a layout that adapts to each.
TrueCourse does one thing and does it honestly: give you a number you can rely on. Nothing to subscribe to, nothing phoning home.
For training and education — a study aid for the FAA knowledge exam and flight training. Not for navigation. Always cross-check critical calculations and follow your POH/AFM and regulations.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Koreniuk Oleksandr, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Koreniuk Oleksandr
- Size
- 2.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later. - Apple Vision
Requires visionOS 26.0 or later. - Apple Watch
Requires watchOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Olexander Koreniuk
