Comparison

FlightReady E6B vs SkyTimer

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

Over 100 aviation functions, conversions, and utilities, including functions that you won't find in any other E6B. Each function uses the correct scientific formula to ensure accuracy. Other E6B apps rely on rules of thumb that can be up to 10% off. The most comprehensive, accurate, and easiest to use E6B on the App Store. E6B Functions > Plan Leg ▸ Groundspeed ▸ True Heading ▸ Compass Heading ▸ Leg Time ▸ Distance ▸ Fuel Required ▸ Fuel Flow ▸ Endurance E6B Functions > Airspeed ▸ Actual TAS ▸ Actual Mach ▸ Plan Mach ▸ Plan TAS ▸ Total Air Temperature E6B Functions > Wind ▸ Wind Component ▸ Unknown Wind ▸ Wind Correction Angle E6B Functions > Altitude ▸ Pressure Altitude ▸ Density Altitude ▸ True Altitude E6B Functions > Climb & Descent ▸ Required descent gradient (percent, degress, ft/nm) ▸ Required descent rate (ft/min) ▸ Top of Descent ▸ Convert between percent, degrees, and ft/nm Extra Functions > Performance ▸ Rate of turn for angle of bank and airspeed ▸ Turn Radius for angle of bank and airspeed ▸ Required bank angle for standard rate turn ▸ Turn radius for standard rate turn ▸ Hydroplane speed ▸ Load factor in level turn ▸ Pivotal altitude Extra Functions > Navigation ▸ DME arc - distance along arc ▸ Thunderstorm cell height (from radar tilt and echo distance) Extra Functions > Aerodynamics ▸ Lift ▸ Power & Torque Conversions > Temperature ▸ Celsius ▸ Fahrenheit ▸ Kelvin ▸ Rankine Conversions > Distance ▸ Statute Miles ▸ Nautical Miles ▸ Kilometers ▸ Meters ▸ Feet Conversions > Speed ▸ Knots ▸ Miles Per Hour ▸ Kilometers Per Hour ▸ Feet Per Minute ▸ Meters Per Second ▸ Mach @ ISA Conversions > Pressure ▸ Inches of Mercury ▸ Millibar ▸ Kilopascal ▸ Pascal ▸ Standard Atmosphere ▸ Pounds per Square Inch Conversions > Fuel ▸ Convert between mass (pounds and kilograms) and volume (gallons and liters) for 100LL, Jet A, Jet B, and Water Conversions > Weight & Mass ▸ Pounds ▸ Kilograms ▸ Ounces Conversions > Area ▸ Square Miles ▸ Square Nautical Miles ▸ Square Kilometers ▸ Square Meters ▸ Square Feet Conversions > Liquid Volume ▸ Gallon ▸ Liter ▸ Ounce ▸ Quart ▸ Pint ▸ Cup Conversions > Dry Volume ▸ Cubic Feet ▸ Cubic Inches ▸ Cubic Meters ▸ Liters Conversions > Density ▸ Pounds per Cubic Foot ▸ Pounds per Cubic Inch ▸ Kilograms per Cubic Meter ▸ Slugs per Cubic Foot Conversions > Power ▸ Horsepower ▸ Kilowatts ▸ Watts Conversions > Torque ▸ Pounds-foot ▸ Pounds-inch ▸ Newton-meter ▸ Kilogram-meter Weight & Balance > CG & Moment ▸ Weight ▸ Moment ▸ C.G. Weight & Balance > C.G. Shift ▸ Amount of weight that must be shifted ▸ Distance the weight is or must be shifted ▸ Distance CG is or must be shifted Weight & Balance > C.G. % MAC ▸ CG location aft of leading edge of MAC ▸ CG location as a percent of MAC Time Utilities > Time Calculator ▸ Standard mathematical operations ▸ Convert time Time Utilities > Flight Log Calculator ▸ Calculate block and flight times in decimal and formatted time ▸ Set standard taxi times in Settings Time Utilities > Standard Calculator ▸ Standard mathematical operations Time Utilities > IFR Timer ▸ Countdown timer with audio, visual, and vibrating alerts Settings ▸ Change precision of conversions between zero, one, two, or three decimal places - default is two decimals places ▸ Day/Night modes What is an E6B? An E6B flight computer is traditionally an analog device resembling a combination slide rule and slide wheel that performs calculations specific to aviation. For example, an E6B can be used to calculate heading and groundspeed after taking into account forecast winds. An E6B is also used to calculate data used for performance planning such as density altitude. Our version goes beyond the analog E6B and even beyond all other E6B apps by including functionality to calculate time, rate and radius of turns, pivotal altitude (great for flight training use), and more.

About

SkyTimer

This app automatically logs flights, tracks fuel burn, and manages tank levels in real-time from your wrist, phone, or iPad. It provides detailed flight logs and can export data, acting as a cockpit companion for pilots.

Highlights
  • Automatic flight logging
  • Real-time fuel tracking
  • Multi-tank and engine support
  • Worldwide airport database
  • Smart fuel balancing
  • Detailed flight logs
  • Cross-device sync
Features
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SkyTimer automatically logs your flights and tracks fuel burn and tank changes in real time--from your wrist, phone, or iPad. A cockpit companion built to work alongside your EFB. Start a flight with a single tap. SkyTimer records block and flight times, tracks fuel quantity across up to 7 tanks and 4 engines, and logs your departure, arrival, and intermediate stop airports using a built-in worldwide airport database--no Internet required. *** FUEL MANAGEMENT, SIMPLIFIED *** SkyTimer calculates fuel burn, endurance, and remaining quantity on-the-fly using time-on-tanks and your configured burn rates. Update flow rates mid-flight for accuracy as conditions change. - Smart Balance calculates optimal tank timer durations to keep fuel balanced across tanks. - A robust reminder engine alerts you to configuration changes based on time-on-tank, fuel use, or fuel transferred. - Supports a wide range of fuel selectors and transfer switch types for single and multi-engine aircraft. *** AUTOMATIC FLIGHT TRACKING *** Smart Track uses GPS ground speed and your aircraft's Vso stall speed to automatically detect takeoffs and landings--no manual input needed. SkyTimer logs the times and airports for you. *** WORKS ON iPHONE, iPAD, AND APPLE WATCH *** Run SkyTimer on your iPad alongside your EFB in Split View, Windowed or Slide Over. On iPhone, Dynamic Island keeps your timers and fuel data visible even while you're in ForeFlight or Garmin Pilot--like a HUD for your flight data. SkyTimer for Apple Watch gives you full access to every feature right from your wrist, and works standalone if you leave your phone on the ground. Everything stays in sync across devices with iCloud. *** DETAILED FLIGHT LOGS *** Every trip is saved with flight and block times, airports, out/off/on/in times, fuel details, time-on-tanks, and Hobbs or Tach times. Export to CSV or directly to LogTen. Everything syncs across your devices with iCloud. *** FREE TO TRY, EASY TO UPGRADE *** Download SkyTimer for free and start tracking block and flight times at no charge. Unlock everything with SkyTimer Plus: - Fuel Quantity Tracking - Unlimited Flight Storage - Tank Timer Management - Auto-Track Takeoffs & Landings - Multiple Aircraft Profiles - iCloud Sync & Backup - In-flight Phone/Watch/iPad Sync --------------------- Price may vary by location. Subscriptions will be charged to your credit card through your App Store account. Your subscription will automatically renew unless cancelled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. After purchase, you can manage your subscriptions in App Store account settings. --------------------- Privacy Policy: https://skytimer.app/privacy/ Terms of Service: https://skytimer.app/terms/

Screenshots

FlightReady E6B4 screens
SkyTimer4 screens

Verdict

The call

The clearest difference is price: SkyTimer at Free against FlightReady E6B's $7.99. SkyTimer also leads on update cadence (fortnightly vs every 3 months) and device support (4 vs 2). FlightReady E6B's advantage is rating (4.7 vs 4.0) and in-app purchases (none vs 2). On ads 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

SkyTimer is free to download; FlightReady E6B costs $7.99 up front. SkyTimer sells 2 in-app purchases, starting at $2.49 per month. FlightReady E6B asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FlightReady E6B holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: FlightReady E6B has 1.1K ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 85% of FlightReady E6B's written reviews are positive against 54% of SkyTimer's.

UpkeepUpdate frequency

FlightReady E6B ships an update every 3 months, SkyTimer fortnightly. The most recent releases landed on September 22, 2026 and September 20, 2026 respectively.

Scorecard10 real differences · 1 level
FlightReady E6B versus SkyTimer: the parameters behind the verdict, then further details
ParameterFlightReady E6BSkyTimer
Price$7.99Free — better
Rating4.7 (1.1K ratings) — better4.0 (22 ratings)
Positive reviews85.3% of reviews — better53.8% of reviews
Number of ratings1.1K — better22
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
Best chart rank#85 — better—
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.615.0 — better
Further details — not scored
Size9 MB149 MB
Age rating4+4+
DeveloperAeroapps TechnologyFramework Learning, LLC

Customer experience

FlightReady E6B

All ratings1,056 ratings
Positive94.6%
Neutral2.1%
Negative3.3%
Written reviews34 reviews
Positive85.3%
Neutral5.9%
Negative8.8%

SkyTimer

All ratings22 ratings
Positive77.3%
Neutral4.5%
Negative18.2%
Written reviews13 reviews
Positive53.8%
Neutral15.4%
Negative30.8%

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

SkyTimer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

FlightReady E6B

No in-app purchases

2 purchases

SkyTimer

Subscriptions2
  • Monthly Plus Subscription$2.491 Month
  • Annual Plus Subscription$17.991 Year

Questions

Is FlightReady E6B free?
FlightReady E6B costs $7.99, with no in-app purchases.
Is SkyTimer free?
SkyTimer is free to download, with in-app purchases available.
Which has better reviews, FlightReady E6B or SkyTimer?
FlightReady E6B is rated higher. FlightReady E6B averages 4.7 out of 5 from 1.1K ratings, while SkyTimer averages 4.0 from 22 ratings.
Do FlightReady E6B or SkyTimer have ads?
Neither FlightReady E6B nor SkyTimer shows ads.
Which is updated more often, FlightReady E6B or SkyTimer?
FlightReady E6B ships an update every 3 months, and SkyTimer fortnightly. Most recently, FlightReady E6B was updated on September 22, 2026 and SkyTimer on September 20, 2026.

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