Comparison

Feasibility vs E6B Max

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

Head to head
About

Feasibility

This app provides business aviation professionals with critical intelligence for evaluating and supporting global flight operations. It offers fast access to airport information, permit requirements, crew/passenger logistics, and country-specific regulations, aiding in smarter go/no-go decisions.

Highlights
  • Airport operating hours and restrictions
  • Overflight and landing permit requirements
  • Crew and passenger entry/visa needs
  • Airport traffic and congestion insights
  • Customs and departure logistics
  • Country-specific regulations
  • Alternate airport options
Features
Read full description

Mission feasibility starts here. Feasibility-IQ® gives business aviation professionals fast, reliable access to the intelligence needed to evaluate and support global flight operations. Built for both iPhone and iPad, Feasibility-IQ helps flight departments assess international missions with confidence—before wheels up. With Feasibility-IQ, you can quickly access: • Airport operating hours, restrictions, permissions, and NOTAMs • Overflight and landing permit requirements, lead times, and trends • Crew and passenger entry, visa, customs, and health requirements • Airport traffic trends, congestion insights, and peak periods • Parking, slot, and PPR considerations • Customs, arrival, and departure logistics • Country-specific operational and regulatory considerations • Local intel, including security concerns and cultural norms • Alternate airport options to support route planning Feasibility-IQ consolidates critical data into a single mobile experience—eliminating manual research and reducing operational risk. Whether planning days in advance or responding in real time, Feasibility-IQ supports smarter, faster go/no-go decisions for international operations.

About

E6B Max

This app is a comprehensive flight computer and planning tool for pilots. It offers a digital E6B whiz-wheel, navigation logging, weight and balance calculations, weather information, and instrument displays. It also includes aviation regulations and emergency quick references.

Highlights
  • Digital E6B flight computer
  • Dead-reckoning flight plan logging
  • Weight and balance calculations
  • METAR, TAF, and winds aloft weather
  • Moving map with flight category airports
  • Sensor-driven flight instruments
  • Aviation unit conversions
Features
Read full description

E6B Max is the modern flight computer for student pilots and GA aviators — the classic E6B whiz‑wheel plus the planning tools you actually use, all in one clean, easy app. FLIGHT COMPUTER - Time, speed & distance - Fuel burn & endurance - True airspeed, pressure & density altitude (from your altimeter setting) - Altitude correction — true altitude for non‑standard temperature - Wind triangle with true, magnetic & compass headings - Temperature slide (°C ⇄ °F) A photorealistic, hand‑turnable slide‑rule dial mirrors every calculation — type a value to turn the wheel, or drag the wheel to set it. The center hub recreates the real E6B correction window, with concentric pressure‑altitude, air‑temperature and density‑altitude scales. Pinch to zoom in on the fine graduations. The wind side is a true sliding‑grid plotter for the manual method. NAV LOG - A dead‑reckoning flight plan you can fill out or auto‑populate - Type From/To and a cruise altitude, then tap to auto‑fill course, distance, magnetic variation (World Magnetic Model), winds aloft and true airspeed - Per‑leg magnetic/compass heading, ground speed, ETE, ETA (Zulu and station‑local), ETR (time remaining) and fuel — with running totals - Enter a Zulu departure time (or Start now) for real clock ETAs; add beginning fuel and climb time/fuel for fuel remaining at every checkpoint - Auto‑fill or Manual — every value stays editable; record optional in‑flight actuals - Export a clean, gridded PDF nav log to share, save or print - Live LOCAL and ZULU clocks, a stopwatch, and a countdown timer WEIGHT & BALANCE - Save a profile per tail number - Custom stations, plus ramp / takeoff / landing / zero‑fuel weight limits - Anything over a limit turns red, with a CG envelope plot - Export a weight & balance PDF to share, save or print WEATHER & MAP - METAR, TAF & winds aloft — raw or plain‑English decoded - Type your cruise altitude to read the wind right at your level - Sunrise/sunset for each airport (Zulu in raw view, station‑local when decoded) - No TAF? The nearest reporting airport is shown with distance & bearing - Moving map with airports colored by flight category (VFR/MVFR/IFR/LIFR) - Plot your active nav‑log route with numbered checkpoints - Standard and satellite map views INSTRUMENTS - A sensor‑driven six‑pack: airspeed, attitude, altimeter, turn coordinator, heading & vertical speed - Set level to zero the attitude to your mount; adjustable barometric (Kollsman) setting in inHg or hPa MORE - Crosswind & headwind component calculator with a caution limit - Pre-flight risk assessment (FAA PAVE go/no-go) with a weighted score - Every aviation unit conversion - Live FAA regulations (14 CFR), always current from the eCFR - Emergency quick reference: lost comms, intercepts, light‑gun signals, squawk codes - Red/white night flashlight PRIVATE BY DESIGN No accounts. No ads. No tracking. Your profiles and trips stay on your device. A one‑time purchase — no subscription, ever. E6B Max is a planning and training aid, not a certified instrument or navigation source. Always verify critical information against current official sources and your aircraft's approved documents. You are pilot in command.

Screenshots

Feasibility4 screens
E6B Max4 screens

Verdict

The call

The clearest difference is price: Feasibility at Free against E6B Max's $9.99. E6B Max's advantage is rating (5.0 vs 4.5). On ratings volume, update cadence, ads and in-app purchases 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

Feasibility is free to download; E6B Max costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

E6B Max holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Feasibility ships an update fortnightly, E6B Max every 8 days. The most recent releases landed on October 8, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 6 level
Feasibility versus E6B Max: the parameters behind the verdict, then further details
ParameterFeasibilityE6B Max
PriceFree — better$9.99
Rating4.5 (2 ratings)5.0 (2 ratings) — better
Number of ratings22
Update frequencyFortnightlyEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size85 MB6 MB
Age rating4+4+
DeveloperUniversal Weather and Aviation, Inc.Fly-Right LLC

Customer experience

Feasibility

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

E6B Max

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Feasibility

No in-app purchases

None

E6B Max

No in-app purchases

Questions

Is Feasibility free?
Feasibility is free to download, with no in-app purchases.
Is E6B Max free?
E6B Max costs $9.99, with no in-app purchases.
Which has better reviews, Feasibility or E6B Max?
E6B Max is rated higher. Feasibility averages 4.5 out of 5 from 2 ratings, while E6B Max averages 5.0 from 2 ratings.
Do Feasibility or E6B Max have ads?
Neither Feasibility nor E6B Max shows ads.
Which is updated more often, Feasibility or E6B Max?
Feasibility ships an update fortnightly, and E6B Max every 8 days. Most recently, Feasibility was updated on October 8, 2026 and E6B Max on September 23, 2026.

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