E6B vs E6B Flight Computer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E6B
This app provides a comprehensive suite of aviation calculations for pilots, including weather, preflight planning, in-flight adjustments, and weight and balance computations. It also offers a wide range of unit conversions for aviation-related metrics.
- Weather calculations (pressure/density altitude, crosswind)
- Preflight planning (airspeed, heading, fuel)
- In-flight calculations (true airspeed, altitude, groundspeed)
- Weight and balance with custom aircraft profiles
- Extensive unit conversions
- Time math (add/subtract times)
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E6B is a modern flight computer for iPhone and iPad — built for student E6B is a modern flight computer for iPhone and iPad — built for student pilots, instrument candidates, and working aviators who need fast, accurate calculations without fumbling with a physical whiz wheel. WEATHER • Pressure & Density Altitude — from baro setting, OAT, and field elevation • Crosswind, Headwind & Tailwind — enter wind speed, direction, and runway heading • Cloud Base & Freezing Level — AGL and pressure altitude • Hydroplane Speed PREFLIGHT • Planned True Airspeed — from CAS, pressure altitude, and OAT • Required CAS / Required TAS — reverse-solve airspeed equations • Heading & Groundspeed — full wind triangle solution • Compass Heading — with magnetic variation and compass deviation • Leg Time — solve any one of time, speed, or distance • Fuel Required & Endurance • Planned Mach Number • Time Math — add and subtract times in HH:MM:SS IN-FLIGHT • Actual True Airspeed — from CAS, altitude, and OAT • Actual True Altitude — corrected for non-standard temperature • Groundspeed — from elapsed time and distance • Fuel Per Hour — from fuel used and elapsed time • Distance Flown WEIGHT & BALANCE Build custom aircraft profiles with stations, limits, and CG envelopes. Load passengers, fuel, and cargo — E6B calculates total weight, moment, and CG in real time. Save multiple profiles for different aircraft. CONVERSIONS Bidirectional converters for: NM ↔ SM ↔ km, feet ↔ meters, °C ↔ °F, inHg ↔ mb, lbs ↔ kg, US gallons ↔ liters, HH:MM:SS ↔ decimal hours, Avgas and Jet A weight (gallons or liters to pounds), and minimum climb gradient to percent or degrees. Privacy Policy: https://docs.nikitin.fyi/com.e6b.calculator/privacy-policy.html Terms of Service: https://docs.nikitin.fyi/com.e6b.calculator/terms-of-service.html
E6B Flight Computer
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Crabwise is an E6B flight computer for iPhone, built for student pilots, private pilots and CFIs who want the answer and the working behind it. WIND TRIANGLE (FREE) • Find heading: enter TAS, true course and the wind to get wind correction angle, true heading and ground speed • Find wind: enter heading, TAS, track made good and ground speed to back out the wind you actually flew in • A live vector diagram shows the air, wind and ground legs of the triangle UNIT CONVERSION (FREE) Nautical miles, statute miles and kilometers; knots, mph and km/h; pounds and kilograms; US gallons and liters; °C and °F; inHg and hPa; feet and meters. Fuel weight for avgas (6.0 lb/US gal) and Jet-A (6.7 lb/US gal). CROSSWIND BEFORE YOU LAND Enter the runway number and the tower or ATIS wind. Crabwise shows the crosswind from the left or right, the headwind or tailwind, and the components in gusts. ALTITUDE AND AIRSPEED Pressure altitude from field elevation and altimeter setting, the way the FAA knowledge test expects it. Density altitude from the full ISA density ratio, not the 120 ft per degree rule of thumb. True airspeed from calibrated airspeed with compressible flow, and Mach number. TIME, SPEED, DISTANCE AND FUEL Solve for whichever one is missing. Fuel burn, fuel flow, endurance, and total required fuel with taxi, run-up and reserve. Use gallons, liters or pounds. WEIGHT AND BALANCE Add stations with weight and arm, get moments, total weight and center of gravity. Enter the corner points of the CG envelope from your POH and see at once whether you are inside it. SEE EVERY STEP Each result can open into the formula and the numbers substituted into it, the way you would work it on a paper E6B. Useful for the written exam, the oral and the checkride. PRIVATE AND OFFLINE Every calculation runs on your iPhone. No account, no ads, no tracking, and no signal needed. Light and dark themes. FREE AND PRO Free: wind triangle (find heading and find wind) and unit conversion. Pro: crosswind, time-speed-distance, fuel, altitude and airspeed, weight and balance, and step-by-step solutions for every calculator. Crabwise Pro is available weekly, monthly or yearly, or as a one-time lifetime purchase. The yearly plan starts with a 3-day free trial. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before that. Manage or cancel them in your App Store account settings. The lifetime purchase is a single payment and does not renew. Not for navigation. Crabwise is for training and reference only. Always cross-check with your POH, approved charts and official sources. Crabwise is not affiliated with or endorsed by the FAA. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://vomcore.com/crabwise/privacy
Screenshots
Verdict
The clearest difference is iOS requirement: E6B Flight Computer at 15.0 against E6B's 18.0. On price, ads, in-app purchases and 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
Both are free to download. E6B sells 2 in-app purchases, starting at $4.99 per month and E6B Flight Computer sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
| Parameter | E6B | E6B Flight Computer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Number of ratings | 7 — better | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Mikhail Nikitin | Volkan Gunay |
In-app purchases
E6B
- premium$4.991 Month
- premium7 Days trial$29.991 Year
E6B Flight Computer
- Crabwise Weekly$1.997 Days
- Crabwise Monthly$3.991 Month
- Crabwise Yearly3 Days trial$12.991 Year
- Crabwise Lifetime$19.99
Questions
Is E6B free?
Is E6B Flight Computer free?
Do E6B or E6B Flight Computer have ads?
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