Comparison

787 Systems vs Math Formulas & Symbols

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

Head to head
About

787 Systems

Features
Read full description

787 Systems is the ultimate Boeing 787 Dreamliner systems reference guide, designed for pilots, aviation professionals, and enthusiasts seeking comprehensive technical knowledge at their fingertips. COMPREHENSIVE SYSTEMS COVERAGE Dive deep into all 24 major Boeing 787 systems with over 230 detailed sub-chapters covering everything from the Common Core System (CCS) to the Cargo Handling System. Each chapter features: • Executive summaries for quick review • Detailed system architecture descriptions • System-specific operational notes • High-resolution system schematics and diagrams POWERFUL STUDY TOOLS • Full-text search across all chapters and system descriptions • Create and organize study notes linked to specific chapters • Track your progress with detailed reading statistics • Mark chapters as complete and monitor your study streak • Bookmark important content for quick reference COMPREHENSIVE ABBREVIATIONS DATABASE Access over 500 Boeing 787 technical abbreviations and acronyms, searchable and organized by category. Perfect for quick reference during study sessions. DESIGNED FOR LEARNING • Clean, professional interface optimized for extended reading sessions • Dark mode support for comfortable studying in any lighting • Dynamic Type support for accessibility • Offline access — no internet connection required • Seamless navigation between chapters and sub-sections PREMIUM FEATURES Unlock the complete experience with a premium subscription: • Full access to all 24 chapters (first 2 available free) • Unlimited study notes and progress tracking • Complete abbreviations database • Ad-free experience IMPORTANT NOTICE 787 Systems is an independent study aid created for educational purposes only. It is not approved by Boeing, the FAA, EASA, or any aviation regulatory authority. This app is designed to supplement, not replace, official aircraft documentation and certified training programs. CONTACT Developer: Skyhightex Email: info@skyhightex.com Start mastering the Boeing 787 Dreamliner today with 787 Systems — your pocket reference for aviation excellence. Privacy: https://www.skyhightex.com/privace-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Math Formulas & Symbols

Features
Read full description

Math Formulas & Symbols is a complete, clear math reference for school, college and exams. Every formula comes with what each symbol means, worked examples and quick practice questions, so you understand it, not just copy it. 150+ FORMULA PAGES IN 14 TOPICS • Numbers and sets: number sets, intervals, divisibility, factors, GCD and LCM, complex numbers • Arithmetic and percent: fractions, exponents and roots, ratio, simple and compound interest • Algebra: factoring, polynomials, linear and quadratic equations, inequalities, functions, exponentials and logarithms • Sequences and series: arithmetic and geometric sequences, the binomial theorem, Taylor and Maclaurin series • Trigonometry: identities, right triangles, law of sines and law of cosines • Plane and solid geometry: triangles, polygons, circles, prisms, cylinders, cones, spheres • Analytic geometry: lines, circles, conic sections, parametric and polar curves • Vectors and matrices: dot and cross products, determinants, systems of equations • Calculus: limits, derivatives, integrals and their applications, multivariable calculus, differential equations • Probability and statistics: mean, standard deviation, probability rules, distributions, z-table • Formula sheets for quick review MATH SYMBOLS • Symbol Finder: 300+ symbols with their names and meaning. Type a symbol or a word to find it • Symbol tables for arithmetic, algebra, geometry, sets, logic, calculus, linear algebra and statistics • Greek letters, constants and how to read math notation aloud MADE FOR STUDYING • Search every page, not just titles • Save pages with a star and pick up where you left off • Adjustable text size, light and dark mode • Works offline 8 LANGUAGES English, Español, Português, Français, Deutsch, العربية, हिन्दी and Bahasa Indonesia. Switch language inside the app at any time. Explanations are written for this app; textbook sources such as OpenStax (CC BY 4.0) are credited on each page.

Screenshots

787 Systems4 screens
Math Formulas & Symbols4 screens

Verdict

The call

The clearest difference is in-app purchases: Math Formulas & Symbols at none against 787 Systems's 3. Math Formulas & Symbols also leads on iOS requirement (15 vs 18.6). 787 Systems's advantage is ads (none vs shown) and update cadence (every 2 days vs every 20 months). On price and device support 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

Both are free to download. 787 Systems sells 3 in-app purchases, starting at $2.99 per month. Math Formulas & Symbols asks for nothing beyond the download.

UpkeepUpdate frequency

787 Systems ships an update every 2 days, Math Formulas & Symbols every 20 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 2 level
787 Systems versus Math Formulas & Symbols: the parameters behind the verdict, then further details
Parameter787 SystemsMath Formulas & Symbols
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 20 months
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615 — better
Further details — not scored
Size78 MB17 MB
Age rating4+4+
DeveloperMohamed FarhadiJakir Hossain

In-app purchases

3 purchases

787 Systems

Subscriptions2
  • B787 Systems Monthly$2.991 Month
  • B787 Systems Yearly$24.991 Year
One-time1
  • B787 Systems Life Time$69.99
None

Math Formulas & Symbols

No in-app purchases

Questions

Is 787 Systems free?
787 Systems is free to download, with in-app purchases available.
Is Math Formulas & Symbols free?
Math Formulas & Symbols is free to download, with no in-app purchases.
Do 787 Systems or Math Formulas & Symbols have ads?
Math Formulas & Symbols shows ads; 787 Systems does not.
Which is updated more often, 787 Systems or Math Formulas & Symbols?
787 Systems ships an update every 2 days, and Math Formulas & Symbols every 20 months. Most recently, 787 Systems was updated on October 27, 2026 and Math Formulas & Symbols on October 25, 2026.

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