SubStandard vs Boeing 787 Training Guide Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SubStandard
This aviation utility app simplifies applying cold temperature corrections for altitudes. It allows users to save frequently used altitude sets for rapid retrieval, enhancing efficiency in flight planning.
- Cold temperature corrections
- Altitude set storage
- Quick access to saved altitudes
- Easy to use interface
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SubStandard is an easy to use app to apply cold temperature corrections in aviation. Moreover, it lets you store sets of altitudes for quick access later on.
Boeing 787 Training Guide Lite
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This LITE version offers limited content. Upgrade to PRO for full Boeing 787 training—2,100+ Q&A, HD diagrams, and the complete Virtual Panel. Boeing 787 Training Guide — built by pilots, for pilots. The Boeing 787 Training Guide app is a pilot-curated knowledge base designed to make study time efficient—whether you’re preparing for type rating, recurrent, line checks, or a simulator session. This comprehensive guide uses a clear question–and–answer format with 2,200+ questions, answers, and explanations covering 787 systems and procedures. It’s engineered to challenge understanding far better than passively reading a manual. Highlights Create custom tests from your Right, Wrong, Marked, or Commented questions. Filter by topic and switch between 787-8 / 787-9. Concise explanations aimed at real-world cockpit decision-making. Mark items, add comments, and revisit weak areas quickly. 2025 update: expanded question bank, refreshed database, and improved content. Goal Help you learn faster and retain more—so you spend less time preparing and more time flying. This app is an independent study tool and is not affiliated with or endorsed by The Boeing Company. What's included: 2,100 questions with detailed answer explanations (787-8/9). 700+ images — HD panels, buttons, and components. 2,000+ references & explanations across systems and procedures. 410 definitions with fast search. 2,000+ FAA abbreviations (fast search). 700+ Jeppesen abbreviations (fast search). Glossary of terms (fast search). 360 EICAS messages (fast search). 787-8/9 limitations (fast search; add / edit / delete). Jeppesen symbols with fast search. Built-in unit converter (weight, speed, temperature, pressure, distance). Dark Mode support. Full FCOM search database. TOPICS INCLUDED : 787 - 8 DATABASE * FULL TEST (1342 Questions, All topics in one test) * ELECTRICAL SYSTEM (198 Questions) * HYDRAULIC SYSTEM (74 Questions) * LANDING GEAR / BRAKES (77 Questions) * FLIGHT CONTROLS (272 Questions) * ANTI-ICE SYSTEM (70 Questions) * FIRE PROTECTION SYSTEM (76 Questions) * AIR SYSTEMS (162 Questions) * FUEL SYSTEM (97 Questions) * ENGINE GEnx (186 Questions) * ENGINE TRENT 1000 (179 Questions) * APU (41 Questions) * WARNING SYSTEM (191 Questions) * FLIGHT INSTRUMENTS (146 Questions) * AUTOMATIC FLIGHT (133 Questions) * AIRPLANE GENERAL (103 Questions) * COMMUNICATIONS (55 Questions) 787 - 9 DATABASE * FULL TEST (1342 Questions, All topics in one test) * ELECTRICAL SYSTEM (198 Questions) * HYDRAULIC SYSTEM (74 Questions) * LANDING GEAR / BRAKES (79 Questions) * FLIGHT CONTROLS (274 Questions) * ANTI-ICE SYSTEM (60 Questions) * FIRE PROTECTION SYSTEM (76 Questions) * AIR SYSTEMS (166 Questions) * FUEL SYSTEM (97 Questions) * ENGINE GEnx (186 Questions) * ENGINE TRENT 1000 (179 Questions) * APU (41 Questions) * WARNING SYSTEM (191 Questions) * FLIGHT INSTRUMENTS (146 Questions) * AUTOMATIC FLIGHT (133 Questions) * AIRPLANE GENERAL (102 Questions) * COMMUNICATIONS (55 Questions) The built-in Search lets you look up 4,000+ definitions and limitations. If a term comes up during a test, jump to the definition and return to your question without losing your place—making the test-taking experience faster and smoother. The 787 Training Guide app is a pilot-built resource to help you become a more confident 787 pilot.
Screenshots
Verdict
The clearest difference is iOS requirement: SubStandard at 12.0 against Boeing 787 Training Guide Lite's 15.0. On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SubStandard ships an update every 7 months, Boeing 787 Training Guide Lite every 5 months. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.
| Parameter | SubStandard | Boeing 787 Training Guide Lite |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 33 MB | 697 MB |
| Age rating | 4+ | 4+ |
| Developer | iService Ottner Röck | Gustavo Legarreta |
In-app purchases
SubStandard
No in-app purchases
Boeing 787 Training Guide Lite
No in-app purchases
Questions
Is SubStandard free?
Is Boeing 787 Training Guide Lite free?
Do SubStandard or Boeing 787 Training Guide Lite have ads?
Which is updated more often, SubStandard or Boeing 787 Training Guide Lite?
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