Comparison

FlightReady E6B vs EF1 E6B Flight Computer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FlightReady E6B

This aviation utility provides over 100 functions, conversions, and utilities for pilots. It offers accurate calculations for flight planning, performance, navigation, and aerodynamics, surpassing other E6B apps with its comprehensive and precise scientific formulas.

Highlights
  • Over 100 aviation functions
  • Accurate scientific formulas
  • Flight planning calculations
  • Performance metrics
  • Navigation tools
  • Extensive unit conversions
  • Weight & Balance calculations
Currently charting
Read full description

FlightReady E6B is a modern flight computer with the most complete set of aviation functions, conversions, and utilities for planning and flying. WHY PILOTS USE FLIGHTREADY E6B • Accurate. Conversions use exact defined factors, and airspeed and altitude calculations use the full U.S. Standard Atmosphere, maintaining accurate calculations above 36,000 feet. • Explained. Every function and conversion has built-in help that describes what it calculates, how to use it, and the formulas and conventions behind it. • Fast. Star the functions you use most to keep them at the top of the main menu, and your favorites sync to your other devices through iCloud. Open functions from Search, Shortcuts, Control Center, the Lock Screen, or the Action button. • Easy to use. Change a field's unit from the menu beside it, and every related field on the screen follows. Results automatically carry over to related functions, reducing repeated data entry. • Night-flight friendly. Dark mode uses a red-shifted amber color scheme designed for use in a dark cockpit. PLAN LEG ▸ Heading & Groundspeed: true heading, groundspeed, and magnetic and compass heading ▸ Time & Distance: leg time, distance, or groundspeed ▸ Required True Airspeed: the true airspeed and heading needed to make a planned groundspeed ▸ Fuel Consumption: fuel required, fuel flow, or endurance ▸ Point of No Return and Equal Time Point, with ETAs AIRSPEED, ALTITUDE, AND WEATHER ▸ Airspeed: actual TAS and Mach, plan Mach, plan TAS, and total air temperature ▸ Altitude: pressure, density, and true altitude ▸ Cloud Base: cloud base AGL and MSL, and relative humidity, from temperature and dew point WIND ▸ Wind Component: headwind and crosswind ▸ Unknown Wind ▸ Wind Correction Angle CLIMB & DESCENT ▸ Climb/Descent Rate: required gradient in ft/nm, percent, and degrees, and rate in ft/min ▸ Top of Descent: determine when to begin descent ▸ Gradient Conversion: percent, degrees, and ft/nm PERFORMANCE ▸ Rate of Turn and Turn Radius for any bank angle and airspeed ▸ Standard Rate Bank Angle and Standard Rate Turn Radius ▸ Hydroplane Speed for rotating and non-rotating tires ▸ Load Factor in Level Turn ▸ Pivotal Altitude, AGL and MSL NAVIGATION ▸ DME Arc Distance ▸ Lead Turn Distance: how far before a fix to start the turn ▸ Thunderstorm Cell Height from radar tilt and distance ▸ Time/Distance to Station from a VOR or NDB bearing change ▸ Holding Pattern: determine entry type and visualize the holding pattern AERODYNAMICS ▸ Lift ▸ Power & Torque WEIGHT & BALANCE ▸ C.G. & Moment: enter any two of weight, CG, and moment to get the third ▸ C.G. Shift: enter any three values to get the fourth, such as how much weight to move ▸ CG % of MAC CONVERSIONS ▸ Temperature: °C, °F, K, and °R ▸ Distance: nautical miles, statute miles, kilometers, feet, and more ▸ Speed: knots, mph, km/h, ft/min, m/s, and Mach ▸ Pressure: inHg, mbar/hPa, kPa, psi, mmHg, and more ▸ Fuel @ 15°C: gallons, liters, pounds, and kilograms of 100LL, Jet-A, Jet-B, JP-8, and water ▸ Weight & Mass, Area, Liquid Volume (US and imperial), Volume, Density, Power, and Torque TIME UTILITIES ▸ Time Calculator: add, subtract, multiply, and divide times, in decimal or formatted time, including h:m ▸ Flight Log Calculator: block and flight times from your out, off, on, and in times ▸ Standard Calculator ▸ IFR Timer: a countdown that keeps running when you lock your phone, with a notification when time is up SETTINGS ▸ Results to as many as four decimal places ▸ Day, Night, and Auto appearance

About

EF1 E6B Flight Computer

This app provides a comprehensive electronic flight computer for pilots, offering fast, offline calculations for wind, airspeed, fuel, and navigation. It includes multi-leg route planning, printable navigation logs, and weight and balance calculations.

Highlights
  • Wind triangle calculations
  • Time, speed, distance calculations
  • Fuel burn, endurance, and range
  • Multi-leg cross-country planning
  • Printable VFR/IFR navigation logs
  • Weight and balance calculations
  • Fully offline functionality
Features
Read full description

EF1 E6B is a complete electronic flight computer built for student pilots, CFIs, and certificated pilots who want a fast, offline, modern E6B without the bloat. EVERYTHING AN E6B DOES - FASTER • Wind triangle (heading, ground speed, wind correction) • True / calibrated / equivalent airspeed • Density and pressure altitude • Time / speed / distance • Fuel burn, endurance, and range • Standard atmosphere + lapse rate • Compass + magnetic heading with deviation and variation • Reciprocal headings, pivotal altitude, standard rate turns • Off-course (1-in-60) corrections • Climb / descent rates and ground distance • Cloud base, glide distance, holding pattern entry • Linear interpolation • Universal converter (length, mass, volume, speed, temp, pressure) CROSS-COUNTRY PLANNING Build a full multi-leg route with up to 20 checkpoints. Set true course, distance, wind, TAS, fuel rate, MSA, and frequencies for each leg. Drag to reorder, duplicate, or reverse the route in one tap. Choose VFR or IFR mode and the app applies the correct FAR fuel rules: • VFR: 30-min day or 45-min night reserve, optional alternate • IFR: 45-min reserve, alternate-required toggle, alternate fuel auto-computed from distance to alternate Trip totals show ETE, ETA, fuel legality (LEGAL or NOT LEGAL with margin), and per-leg fuel remaining. PRINTABLE NAV LOG Generate a clean PDF nav log — VFR or IFR titled — with every checkpoint, fuel breakdown, frequencies card, and a side panel showing usable fuel, taxi, climb, enroute, alternate, and reserve. Email, print, or save it. FLY THE CROSS-COUNTRY Tap START FLIGHT, then mark off each checkpoint as you pass it. The app records actual time enroute, actual ground speed, and ATA, then writes them back into your post-flight log automatically. WEIGHT & BALANCE Build aircraft profiles, enter station moments, and check CG against the envelope. DESIGNED FOR PILOTS • Works fully offline - no signal, no problem • Optimized for iPhone and iPad with dark cockpit theme • Adjustable font scale for kneeboard readability • US or metric units, switch any time • Save unlimited routes • Backup and restore your data SUBSCRIPTION The EF1 E6B unlocks all features with a 7-day free trial, then $3.99/month or $19.99/year. Cancel any time before the trial ends - no charge. Subscription auto-renews for the same period at the same price unless cancelled at least 24 hours before the end of the period. Manage or cancel in your iOS Settings → Apple ID → Subscriptions. Privacy: https://www.entireflight.com/policies/privacy-policy. Terms: https://www.entireflight.com/policies/terms-of-service

Screenshots

FlightReady E6B4 screens
EF1 E6B Flight Computer4 screens

Verdict

The call

The clearest difference is price: EF1 E6B Flight Computer at Free against FlightReady E6B's $9.99. EF1 E6B Flight Computer also leads on update cadence (weekly vs every 4 months) and iOS requirement (15.1 vs 18.1). FlightReady E6B's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

EF1 E6B Flight Computer is free to download; FlightReady E6B costs $9.99 up front. EF1 E6B Flight Computer sells 2 in-app purchases, starting at $3.99 per month. FlightReady E6B asks for nothing beyond the download.

UpkeepUpdate frequency

FlightReady E6B ships an update every 4 months, EF1 E6B Flight Computer weekly. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

Scorecard8 real differences · 3 level
FlightReady E6B versus EF1 E6B Flight Computer: the parameters behind the verdict, then further details
ParameterFlightReady E6BEF1 E6B Flight Computer
Price$9.99Free — better
Rating4.7 (1.1K ratings) — better—
Positive reviews83.3% of reviews — better66.7% of reviews
Number of ratings1.1K — better—
Update frequencyEvery 4 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#27 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.115.1 — better
Further details — not scored
Size5 MB48 MB
Age rating4+4+
DeveloperAeroapps TechnologyEntireFlight LLC

Customer experience

FlightReady E6B

All ratings1,068 ratings
Positive94.8%
Neutral2.0%
Negative3.3%
Written reviews36 reviews
Positive83.3%
Neutral8.3%
Negative8.3%

EF1 E6B Flight Computer

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Bugs and requests

FlightReady E6B

Reported bugs

2 issues
  • Fuel computation functions crashing
  • New extra functions not working

Requested features

3 requests
  • Add wind correction angle calculation
  • Include seconds in time measurements
  • Provide user manual or instructions

EF1 E6B Flight Computer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

FlightReady E6B

No in-app purchases

2 purchases

EF1 E6B Flight Computer

Subscriptions2
  • Monthly7 Days trial$3.991 Month
  • Annual7 Days trial$19.991 Year

Questions

Is FlightReady E6B free?
FlightReady E6B costs $9.99, with no in-app purchases.
Is EF1 E6B Flight Computer free?
EF1 E6B Flight Computer is free to download, with in-app purchases available.
Do FlightReady E6B or EF1 E6B Flight Computer have ads?
EF1 E6B Flight Computer shows ads; FlightReady E6B does not.
Which is updated more often, FlightReady E6B or EF1 E6B Flight Computer?
FlightReady E6B ships an update every 4 months, and EF1 E6B Flight Computer weekly. Most recently, FlightReady E6B was updated on October 15, 2026 and EF1 E6B Flight Computer on October 2, 2026.

Other comparisons