Comparison

Boeing 787 Training Guide PRO vs Fuel Density Calculation

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

Head to head
About

Boeing 787 Training Guide PRO

This pilot-curated knowledge base offers over 2,200 questions and explanations for 787 systems and procedures. Create custom tests, filter by topic, and access a comprehensive search database to enhance your aviation studies.

Highlights
  • 2,200+ Q&A with explanations
  • Custom test creation
  • Topic filtering (787-8/9)
  • 700+ HD images
  • Full FCOM search
  • Unit converter
  • Dark Mode support
Features
Read full description

Boeing 787 Training Guide — built by pilots, for pilots. The Boeing 787 Training Guide app is a pilot-curated knowledge base designed to make study time efficient—whether you’re preparing for type rating, recurrent, line checks, or a simulator session. This comprehensive guide uses a clear question–and–answer format with 2,200+ questions, answers, and explanations covering 787 systems and procedures. It’s engineered to challenge understanding far better than passively reading a manual. Highlights Create custom tests from your Right, Wrong, Marked, or Commented questions. Filter by topic and switch between 787-8 / 787-9. Concise explanations aimed at real-world cockpit decision-making. Mark items, add comments, and revisit weak areas quickly. 2025 update: expanded question bank, refreshed database, and improved content. Goal Help you learn faster and retain more—so you spend less time preparing and more time flying. This app is an independent study tool and is not affiliated with or endorsed by The Boeing Company. What's included: 2,100 questions with detailed answer explanations (787-8/9). 700+ images — HD panels, buttons, and components. 2,000+ references & explanations across systems and procedures. 410 definitions with fast search. 2,000+ FAA abbreviations (fast search). 700+ Jeppesen abbreviations (fast search). Glossary of terms (fast search). 360 EICAS messages (fast search). 787-8/9 limitations (fast search; add / edit / delete). Jeppesen symbols with fast search. Built-in unit converter (weight, speed, temperature, pressure, distance). Dark Mode support. Full FCOM search database. TOPICS INCLUDED : 787 - 8 DATABASE * FULL TEST (1342 Questions, All topics in one test) * ELECTRICAL SYSTEM (198 Questions) * HYDRAULIC SYSTEM (74 Questions) * LANDING GEAR / BRAKES (77 Questions) * FLIGHT CONTROLS (272 Questions) * ANTI-ICE SYSTEM (70 Questions) * FIRE PROTECTION SYSTEM (76 Questions) * AIR SYSTEMS (162 Questions) * FUEL SYSTEM (97 Questions) * ENGINE GEnx (186 Questions) * ENGINE TRENT 1000 (179 Questions) * APU (41 Questions) * WARNING SYSTEM (191 Questions) * FLIGHT INSTRUMENTS (146 Questions) * AUTOMATIC FLIGHT (133 Questions) * AIRPLANE GENERAL (103 Questions) * COMMUNICATIONS (55 Questions) 787 - 9 DATABASE * FULL TEST (1342 Questions, All topics in one test) * ELECTRICAL SYSTEM (198 Questions) * HYDRAULIC SYSTEM (74 Questions) * LANDING GEAR / BRAKES (79 Questions) * FLIGHT CONTROLS (274 Questions) * ANTI-ICE SYSTEM (60 Questions) * FIRE PROTECTION SYSTEM (76 Questions) * AIR SYSTEMS (166 Questions) * FUEL SYSTEM (97 Questions) * ENGINE GEnx (186 Questions) * ENGINE TRENT 1000 (179 Questions) * APU (41 Questions) * WARNING SYSTEM (191 Questions) * FLIGHT INSTRUMENTS (146 Questions) * AUTOMATIC FLIGHT (133 Questions) * AIRPLANE GENERAL (102 Questions) * COMMUNICATIONS (55 Questions) The built-in Search lets you look up 4,000+ definitions and limitations. If a term comes up during a test, jump to the definition and return to your question without losing your place—making the test-taking experience faster and smoother. The 787 Training Guide app is a pilot-built resource to help you become a more confident 787 pilot.

About

Fuel Density Calculation

This utility app assists wide-body aircrews, specifically for Boeing and Airbus aircraft, in comparing uploaded fuel quantities with actual fuel on board. It incorporates density calculations for accurate fuel management.

Highlights
  • Fuel density calculations
  • Compare uploaded vs. actual fuel
  • Designed for Boeing and Airbus aircrews
  • Accurate fuel on board (FOB) verification
Features
Read full description

Fuel Density Calculation is a cockpit utility for comparing receipt-based fuel uplift calculations against indicated fuel on board. Enter landing fuel, fuel density or specific gravity, fuel receipt quantities, and indicated FOB. The app calculates uplift, landing fuel plus uplift, and the resulting difference in both percent and pounds. Supports gallons and liters, automatic decimal formatting, and specific gravity conversion for receipts that provide SG instead of fuel density. This app is a calculation aid and does not replace approved aircraft, company, or maintenance procedures.

Screenshots

Boeing 787 Training Guide PRO4 screens
Fuel Density Calculation4 screens

Verdict

The call

The clearest difference is price: Fuel Density Calculation at $2.99 against Boeing 787 Training Guide PRO's $24.99. Fuel Density Calculation also leads on review sentiment (100% vs 67%) and update cadence (every 2 months vs every 10 months). Boeing 787 Training Guide PRO's advantage is ratings volume (6 vs 2) and iOS requirement (15.0 vs 17.0). On rating, ads, in-app purchases and monetization model 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

Boeing 787 Training Guide PRO costs $24.99 and Fuel Density Calculation $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Boeing 787 Training Guide PRO against 5.0 for Fuel Density Calculation. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews are what separate them: 67% of Boeing 787 Training Guide PRO's written reviews are positive against 100% of Fuel Density Calculation's.

UpkeepUpdate frequency

Boeing 787 Training Guide PRO ships an update every 10 months, Fuel Density Calculation every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Boeing 787 Training Guide PRO versus Fuel Density Calculation: the parameters behind the verdict, then further details
ParameterBoeing 787 Training Guide PROFuel Density Calculation
Price$24.99$2.99 — better
Rating5.0 (6 ratings)5.0 (2 ratings)
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings6 — better2
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size704 MB1 MB
Age rating4+4+
DeveloperGustavo LegarretaRichard Montoya

Customer experience

Boeing 787 Training Guide PRO

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

Fuel Density Calculation

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Boeing 787 Training Guide PRO

No in-app purchases

None

Fuel Density Calculation

No in-app purchases

Questions

Is Boeing 787 Training Guide PRO free?
Boeing 787 Training Guide PRO costs $24.99, with no in-app purchases.
Is Fuel Density Calculation free?
Fuel Density Calculation costs $2.99, with no in-app purchases.
Which has better reviews, Boeing 787 Training Guide PRO or Fuel Density Calculation?
Boeing 787 Training Guide PRO and Fuel Density Calculation are both rated 5.0 out of 5 on the App Store, from 6 and 2 ratings respectively.
Do Boeing 787 Training Guide PRO or Fuel Density Calculation have ads?
Neither Boeing 787 Training Guide PRO nor Fuel Density Calculation shows ads.
Which is updated more often, Boeing 787 Training Guide PRO or Fuel Density Calculation?
Boeing 787 Training Guide PRO ships an update every 10 months, and Fuel Density Calculation every 2 months. Most recently, Boeing 787 Training Guide PRO was updated on October 25, 2026 and Fuel Density Calculation on October 24, 2026.

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