Comparison

B757 EICAS vs A&P PRO

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

Head to head
About

B757 EICAS

Access reference information for Boeing 757 EICAS messages. This app draws from aircraft manuals for guidance, but should not be used for actual flight operations. Always consult approved documentation for operational details.

Highlights
  • Boeing 757 EICAS message reference
  • Information from aircraft manuals
  • Not for operational use
  • Supports iPhone and iPad
Features
Read full description

EICAS MESSAGES is a fast, offline reference tool for Boeing 757 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.

About

A&P PRO

This app provides essential calculations and reference tools for aircraft airframe and powerplant mechanics. It covers sheet metal, weight and balance, basic electricity, aviation science, and unit conversions, drawing data from FAA AC43-13b. Designed for students and professionals in aviation maintenance.

Highlights
  • Sheet Metal calculations
  • Weight and Balance calculations
  • Basic Electricity formulas
  • Aviation Science principles
  • Unit Conversion calculator
  • Reference data from FAA AC43-13b
Features
Read full description

Airframe and PowerPlant Professional (A&P PRO) This app assists the aircraft airframe and powerplant (A&P) mechanic in determining common measurements in several subject matter areas. Source for formulae is FAA AC43-13b. It is designed for students enrolled in an FAA Part 147 Maintenance Technician School. Instructors at such schools will also benefit from its use as will graduate mechanics. It has been formatted for iPhones with 5.5" screens or greater as well as 7" and 10" tablets. A tablet is the ideal device. Sheet Metal: - Setback - Developed Width - Rivet Size - Bend Allowance Weight and Balance: - Basic Empty Weight Center of Gravity (CG) - CG Adjustments using Ballast and/or Weight Shift - CG Adjustment due to Alterations - Min/Max CG limits from Adverse Loading Basic Electricity - Resistor Color Codes (by Color Band and by Value) - Ohm's Law Demonstrator - Impedance Circuits - Voltage/Current Divider Circuits - Component (resistor, capacitor, inductor) Addition (parallel/series) - Reactance Computations - Frequency, Period and Wavelength calculator Aviation Science - Levers (Class I, II, III, Inclined Plane) - Gas Laws (Boyles, Charles, Lussacs and Combined) Unit Conversion Calculator - Length - Power - Area - Volume - Weight - Temperature - Speed - Data Storage - Angle - Time Disclaimer The user of A&P PRO for any specific application without an independent verification of its accuracy does so at his/her own risk and assumes any and all liability resulting from such use. No warranty is offered as to the accuracy of results. Users should have a thorough understanding of the relevant theoretical criteria. A&P PRO Copyright 2024 TurboSoftSolutions

Screenshots

B757 EICAS1 screens
A&P PRO4 screens

Verdict

The call

The clearest difference is price: A&P PRO at Free against B757 EICAS's $1.99. A&P PRO also leads on update cadence (every 3 weeks vs every 67 months) and iOS requirement (16.0 vs 26.0). On rating, ratings volume, 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

A&P PRO is free to download; B757 EICAS costs $1.99 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 B757 EICAS against 5.0 for A&P PRO. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

UpkeepUpdate frequency

B757 EICAS ships an update every 67 months, A&P PRO every 3 weeks. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
B757 EICAS versus A&P PRO: the parameters behind the verdict, then further details
ParameterB757 EICASA&P PRO
Price$1.99Free — better
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings23 — better
Update frequencyEvery 67 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.0 — better
Further details — not scored
Size1 MB18 MB
Age rating4+4+
DeveloperFredrik KarlssonNeil Rohan

Customer experience

B757 EICAS

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

A&P PRO

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

B757 EICAS

No in-app purchases

None

A&P PRO

No in-app purchases

Questions

Is B757 EICAS free?
B757 EICAS costs $1.99, with no in-app purchases.
Is A&P PRO free?
A&P PRO is free to download, with no in-app purchases.
Which has better reviews, B757 EICAS or A&P PRO?
B757 EICAS and A&P PRO are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do B757 EICAS or A&P PRO have ads?
Neither B757 EICAS nor A&P PRO shows ads.
Which is updated more often, B757 EICAS or A&P PRO?
B757 EICAS ships an update every 67 months, and A&P PRO every 3 weeks. Most recently, B757 EICAS was updated on October 24, 2026 and A&P PRO on October 18, 2026.

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