B767 EICAS
by Fredrik Karlsson
- Reference
- Paid
- Small & simple · 93
- Rating
- 5.0
- 8 ratings · US storefront
- Top 97%among 127 Reference apps
- Last update
- Jul 30, 2026
- Version 3.0
- Size
- 1 MB
- Category
- Reference
- Tracked since
- Oct 10, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
EICAS MESSAGES is a fast, offline reference tool for Boeing 767 flight crew, covering hundreds of EICAS (Engine Indication and Crew Alerting System) messages with clear explanations, level descriptions, MMEL references, and aural alerts.
REFERENCE
Browse the complete message library, filtered by severity level and searchable by name. Tap any message for a detailed breakdown — what the message means, its warning/caution/advisory level, the MMEL reference, and any associated aural alert.
CHALLENGE
Test and sharpen your EICAS knowledge with three challenge modes:
- Quick Challenge — answer a set of 5, 10, or 20 questions at your own pace
- Timed Challenge — score as many correct answers as possible within 60, 90, or 120 seconds
- Review Missed — focus on messages you've previously got wrong
Track your best streaks, personal bests, and high scores across all modes. Missed answers automatically build a review bank so you can drill your weak spots.
Fully offline — no account, no subscription.
Information is derived from current aircraft manuals and is intended for study purposes only. Always refer to approved documentation for operational use.
What’s new
Release notes for the latest version, as written by the developer.
Challenge Mode
Test your EICAS knowledge with three new challenge modes: Quick Challenge (5–20 questions), Timed Challenge (up to 120 seconds), and Review Missed — which draws from messages you've previously answered incorrectly.
Scores, personal bests, streaks, and a top-10 high score board are tracked for each mode.
Design improvements across the message list and detail views.
Rank history
Daily position in the Colombia charts. #1 is at the top.
- Best rank
- #1
- Current rank
- #3
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
93/100
Small & simple
- Developer size70% · 25
Developer: 2 apps on the charts
- Audience size100% · 20
Ratings: 8
- App size100% · 10
Size: 1 MB
- Price model100% · 15
Price model: paid
- Demand proof100% · 30
Best rank #1, 22 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 3.0LatestReleased Jul 30, 2026