# Boeing 787 Training Guide PRO vs Fuel Density Calculation

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.

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.

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.

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.

## The numbers

| Metric | Boeing 787 Training Guide PRO | Fuel Density Calculation |
| --- | --- | --- |
| Price | $24.99 | **$2.99** |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/boeing-787-training-guide-pro/id1611213369/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/fuel-density-calculation/id6636469810/reviews) |
| Number of ratings | **6** | 2 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 704 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gustavo Legarreta](https://appshunter.io/developer/1506804238) | [Richard Montoya](https://appshunter.io/developer/1762752434) |

## What reviewers say

### Boeing 787 Training Guide PRO

[App page](https://appshunter.io/ios/app/boeing-787-training-guide-pro/id1611213369)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Fuel Density Calculation

[App page](https://appshunter.io/ios/app/fuel-density-calculation/id6636469810)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*