FlyBy E6B vs FLYLOG.io
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlyBy E6B
This aviation tool provides pilots with over 70 essential flight calculations, including airspeed, wind, navigation, and altitude computations. It offers advanced features for both aspiring and experienced aviators, with a long history of user feedback and development.
- Airspeed calculations
- Wind direction and speed
- Heading and ground speed
- Time-speed-distance calculations
- Altitude calculations
- Vertical navigation
- Navigation calculations
- Unit conversions
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FlyBy E6B is an essential application for all pilots. Designed by a professional airline pilot it includes many features not found in the "other" E6B programs. If you are considering a career in aviation FlyBy E6B has functions that you can use in every aircraft you will fly. FlyBy E6B was one of the very first applications of its kind published for the Palm Pilot. Used by thousands of pilots the world over, it has evolved from the suggestions and feedback we have received. Please visit our web site for more detail and screen shots. FlyBy E6B Features (70+): Airspeed Calculations: - True Airspeed using Calibrated Airspeed - True Airspeed using Mach# - Calibrated Airspeed using TAS - IAS Using MACH# - Equivalent Airspeed using CAS - Mach# Using TAS - Mach Crossover Altitude - Planned MACH# - Planned TAS - Vref CAS Wind Calculation: - Find Wind Direction and Speed - Find Wind Component (headwind and crosswind) Heading and Ground Speed: - Find Heading, Ground Speed, ETE and Fuel Burned Time-Speed-Distance: - Find Estimated Time Enroute - Find Ground Speed - Find Distance - Find Fuel Time - Find Fuel Flow - Find Fuel Burned - Find Estimated Time of Arrival - Journey Log Time - Time Adder - Fixed GroundSpeed (Find a True Airspeed given a track, wind and required groundspeed) - Crew Rest Altitude Calculations: - Density Altitude - Pressure Altitude - True Altitude - Cold Temperature Altitude Correction - China RVSM Airspace - Device Altitude (If device has pressure sensor) Vertical Navigation Calculations: - Distance and Time using Altitude Change, Ground Speed, Vertical Speed - Rate of Descent using Altitude Change, Ground Speed, Distance - Rate of Descent using Altitude Change, Ground Speed, Descent Angle - Feet/Nm using Vertical Speed, Ground Speed - Feet/Nm (%) using Gradient %, Ground Speed - Rate of Climb using Required Climb Gradient and Ground Speed - SCDA (Constant Descent Angle) - VDP (Visual Descent Point) - VPA Deviation (Vertical Path Angle Deviation) Navigation Calculations: - Critical Point - Equal Time Point - Point of No Return - Time to Minimum Descent Altitude - Track and Distance between two points with map plotting of the great circle track. Map plotting includes movable pin locations with instant trip information: Distance, Track and time enroute. - Map GPS mode. Displays device Speed, True Course, Altitude, Distance Remaining, Track to Destination, cross track error, estimated time remaining and estimated time of arrival. - Map closest airport feature will display airports close to your current GPS location or a dropped pin location. - Fix. Calculate a map point based on a Fix, Radial and Distance. - Rate One Turn - Radius of Turn - Turning Stall Speed - DME Arc distance and time - VOR Nav Conversions: - Distance: Nautical Miles/ Knots Statute Miles/ Mph Kilometers/ Kph Feet Meters Meters/Second Feet/Second Feet/Minute - Volume: US Gallons Imperial Gallons Liters - Temperature: Celsius Fahrenheit Kelvin - Weight: Pounds Kilograms - Altimeter: Inches Hg Millibars/Hectopascals mmHg - Fuel, Temperature Corrected, JetA, JetB, AvGas: US Gallons Imperial Gallons Liters Pounds Kilograms - QFE/QNH airfield altitude conversion - DMS/DM.m/DM.m and D.d coordinate conversion - VNAV Gradient% Feet per NM Angle Weather: - Relative Humidity, Heat Index, Cumulus cloud base, Wind Chill - NOAA METAR/TAF and D-ATIS access - ISA Temperature Deviation Other Functions: - Linear Interpolation - Minimum Floor Load Limit (Cargo) - Maximum Cargo Weight - Runway Slope - PAX Weight - C.G. Change - Weight to Shift - Distance to Shift - Sunrise/Sunset: Civil Day/Night, Azimuth, Apex, Elevation, for any location and time/date. Includes a unique sunset ETA function that calculates your current flights sunset time.
FLYLOG.io
Effortlessly log flight hours, import data from various sources, and generate professional reports for aviation authorities. Features VFR navigation with maps and route guidance, ensuring compliance and easy record-keeping for pilots.
- Easy flight logging
- Import from airline, CSV, Excel, ADS-B
- Authority-ready exports
- Totals, limits, and recency tracking
- Professional CV and reports
- VFR navigation with maps
- Works across all devices
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• Airline, CSV & Excel Imports - Import flight records from your airline or crew system, upload bulk CSV or Excel files, or switch from a paper logbook — all with a guided, easy workflow. • Easy Flight Logging - A clean, intuitive, and customizable interface for fast, error-free records, powered by a built-in audit engine. • ADS-B Flight Imports - Import and autofill flights from ADS-B for faster, more accurate logging, with the option to replay your flight track. • Authority-Ready Worldwide - Exports and summaries designed to meet requirements across global aviation authorities, including FAA, EASA, TCCA, GCAA, CAD, and many others worldwide. • Totals, Limits & Recency Tracking - Automatic summaries for hours, landings, IFR/Night recency, and authority requirements. • Professional Pilot CV & Reports - Generate PDF reports for audits, renewals, or applications. Create a Pilot CV and share it instantly via link. • VFR Maps & Navigation - Plan and navigate VFR flights with maps, airspace data, and route guidance tailored for pilots. Record your flight and automatically sync it with your logbook. • Works Across All Devices Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: FLYLOG.io at Free against FlyBy E6B's $9.99. FLYLOG.io also leads on update cadence (every 3 days vs every 2 months) and ratings volume (99 vs 17). FlyBy E6B's advantage is in-app purchases (none vs 2) and review sentiment (95% vs 65%). On rating, ads, device support and iOS requirement 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
FLYLOG.io is free to download; FlyBy E6B costs $9.99 up front. FLYLOG.io sells 2 in-app purchases, starting at $5.99 per month. FlyBy E6B asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for FlyBy E6B against 4.7 for FLYLOG.io. That said, the two scores are not equally well evidenced: FLYLOG.io has 99 ratings behind it against 17, so its average is the more settled of the two. Written reviews are what separate them: 95% of FlyBy E6B's written reviews are positive against 65% of FLYLOG.io's.
FlyBy E6B ships an update every 2 months, FLYLOG.io every 3 days. Both last shipped on September 26, 2026.
| Parameter | FlyBy E6B | FLYLOG.io |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.7 (17 ratings) | 4.7 (99 ratings) |
| Positive reviews | 94.6% of reviews — better | 64.5% of reviews |
| Number of ratings | 17 | 99 — better |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 174 MB |
| Age rating | 4+ | 17+ |
| Developer | Lonnie Ganz | Breele |
Customer experience
FlyBy E6B
FLYLOG.io
In-app purchases
FlyBy E6B
No in-app purchases
FLYLOG.io
- Basic$5.991 Month
- Premium$10.991 Month









