# B767 EICAS vs Big Brown ToolKit

The clearest difference is update cadence: Big Brown ToolKit at fortnightly against B767 EICAS's every 24 months. Big Brown ToolKit also leads on review sentiment (100% vs 75%) and iOS requirement (15.0 vs 26.0). B767 EICAS's advantage is price ($1.99 vs $4.99). On rating, ratings volume, ads and in-app purchases there is nothing between them.

B767 EICAS costs $1.99 and Big Brown ToolKit $4.99 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 B767 EICAS against 5.0 for Big Brown ToolKit. Both are backed by a comparable volume of ratings — 8 and 6 respectively. Written reviews are what separate them: 75% of B767 EICAS's written reviews are positive against 100% of Big Brown ToolKit's.

B767 EICAS ships an update every 24 months, Big Brown ToolKit fortnightly. Both last shipped on October 9, 2026.

## The numbers

| Metric | B767 EICAS | Big Brown ToolKit |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/b767-eicas/id570163023/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/big-brown-toolkit/id6475022221/reviews) |
| Number of ratings | **8** | 6 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Best chart rank | #190 | **#97** |
| Size | 1 MB | 24 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fredrik Karlsson](https://appshunter.io/developer/416827410) | [Stealth Productions Limited](https://appshunter.io/developer/571321895) |

## What reviewers say

### B767 EICAS

[App page](https://appshunter.io/ios/app/b767-eicas/id570163023)

**Currently charting:** #190 Top Paid · Reference (US App Store)

Access reference information for Boeing 767 EICAS messages. Information is sourced from aircraft manuals but is not for operational use. Always consult approved documentation for flight operations.

**Highlights:** Boeing 767 EICAS message reference, Information from aircraft manuals, Not for operational use, Supports iPhone and iPad

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Big Brown ToolKit

[App page](https://appshunter.io/ios/app/big-brown-toolkit/id6475022221)

**Currently charting:** #97 Top Paid · Reference (US App Store)

This toolkit assists aircrew with daily tasks, offering calculations for duty periods, rest requirements, unit conversions, and weather decoding. It also includes tools for pay calculations, exchange rates, and specialized aviation metrics.

**Highlights:** Duty Period & Rest Calculations, Aviation Unit Conversions, Cross Wind & Runway State Decoding, SNOWTAM & Meteorological Decoding, Crew Rest & Pay Calculations, Low Temperature Altimetry & Density Altitude

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is B767 EICAS free?

B767 EICAS costs $1.99, with no in-app purchases.

### Is Big Brown ToolKit free?

Big Brown ToolKit costs $4.99, with no in-app purchases.

### Which has better reviews, B767 EICAS or Big Brown ToolKit?

B767 EICAS and Big Brown ToolKit are both rated 5.0 out of 5 on the App Store, from 8 and 6 ratings respectively.

### Do B767 EICAS or Big Brown ToolKit have ads?

Neither B767 EICAS nor Big Brown ToolKit shows ads.

### Which is updated more often, B767 EICAS or Big Brown ToolKit?

B767 EICAS ships an update every 24 months, and Big Brown ToolKit fortnightly. Most recently, B767 EICAS was updated on October 9, 2026 and Big Brown ToolKit on October 9, 2026.

### Which is more popular, B767 EICAS or Big Brown ToolKit?

B767 EICAS currently peaks at #190 in the App Store charts, and Big Brown ToolKit at #97. Chart position reflects recent download velocity rather than total install base.

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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.*