Apps by Trevor Welsh
GoFly: E6B Aviation Calculator app icon

Utilities

GoFly: E6B Aviation Calculator

Trevor Welsh

Free download 5.00 · 1 storefront · 6 ratings In-app purchases unconfirmed
Open on Apple

About this app

Fast, accurate, and built to feel good in your hands. No more spinning a plastic wheel and hoping. Type your numbers, get a precise answer, and tap once to see exactly how it got there. Every mode is dialed in and easy to use, whether you're planning a cross-country or just checking a crosswind before you taxi. Live Wind Triangle - A cockpit-style instrument that redraws heading, track, and wind as you type - View the crab angle, not just the number for it Show the Work - Every result opens up into the formula and the values you plugged in - Expand it when you want to understand it, collapse it when you don't Core E6B Tools - True airspeed and density altitude - Time, speed, distance - Fuel and endurance - Crosswind components - Unit conversions METAR Decoder - Pull any airport's live report from the NOAA Aviation Weather Center - Read it in plain language, line by line Weight & Balance - Load your aircraft and see gross weight and CG on the envelope - Save airplanes as presets so you're not re-entering them The Small Stuff - A keypad with the units right on each field, so knots never get mixed up with mph - Works offline. Every calculation runs on your phone. Only live METARs need a signal. - No accounts, no analytics, no ads, nothing collected. Your numbers stay on your phone. *Subscription or purchase required for certain modes and features* https://goflycalculator.app/privacy/ https://goflycalculator.app/terms/

Latest release

What’s New

Version 1.4.0 Aug 28, 2026

Visual enhancements & improvements.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
6 ratings
6 Sep 3, 2026 · 6 ratings Sep 3, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free 0×
Price history
Current Free
Free Sep 3, 2026 · Free Sep 3, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Sep 3, 2026 · 7:28 PM Free

Screenshots

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