Our engines vs Bell TechPubs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Our engines
Explore the inner workings of civil and military aircraft engines through interactive 3D animations. Discover the aircraft they power and test your knowledge to become an aeronautical expert.
- Immersive 3D animations
- Detailed engine operation exploration
- Aircraft powered by engines
- Knowledge testing quizzes
- Iconic engine examples
- Aeronautical engineering insights
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Get to the heart of our engines! A world-class aircraft engines manufacturer, Safran Aircraft Engines designs, develops, produces and markets, alone or in partnership, engines for civil and military aircraft. Through this educational and entertaining app, explore in detail the operation of our civil and military engines through immersive 3D animations, discover the aircraft they power and test your knowledge to become a true expert! Get behind the scenes of aeronautical engineering and discover some of our most iconic engines: - The M88 engine, which powers the Rafale jet fighter - The TP400, engine of the Airbus A400M military transport aircraft - The NGFE, which will equip Europe’s next generation fighter within the scope of the FCAS program - The CFM56*, best-selling engine in commercial aviation history - The LEAP*, a new generation turbofan powering Airbus, Boeing and COMAC single-aisle commercial jets - The CFM* RISE Technology Demonstration Program, pushing the limits of innovation to meet the challenge of decarbonisation of aviation * CFM56 and LEAP engines are developed by CFM International. A 50/50 joint venture between GE Aerospace and Safran Aircraft Engines, CFM International has redefined international cooperation and helped change the course of commercial aviation since its founding in 1974. Today, CFM is the world's leading supplier of commercial aircraft engines with a product line that sets the industry standard for efficiency, reliability, durability, and optimized cost of ownership.
Bell TechPubs
Access technical manuals and interactive documents for mission-critical operations. Supports online and offline viewing, with features like hyper-linking and interactive figures for easy navigation and troubleshooting.
- Online and offline manual access
- Interactive PDF and S1000D IETM formats
- Integrated hyper-linking between documents
- Update notifications for new revisions
- Zoomable interactive figures
- Fault isolation and wiring diagrams
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Access your Bell Technical Publications libraries anytime, anywhere with the Bell Technical Publications iOS app, designed exclusively for iPadOS. Whether you’re on the flightline, in the field, or mid-flight, this app is built to support your mission-critical operations. Key Features: • Online and Offline Access: View technical manuals while online or download individual manuals or entire libraries for offline use. • Interactive Manuals: Access fully interactive manuals in PDF and S1000D Interactive Electronic Technical Manual (IETM) formats. • Integrated Hyper-Linking: Seamlessly navigate between manuals, chapters, and data modules, including maintenance and flight manuals, Illustrated Parts Catalogs, Alert Service Bulletins, Technical Bulletins, and more. • Update Notifications: Stay informed with email and in-app notifications when new manuals are added or revisions are released. • Interactive Figures: Zoom and pan features for figures in Maintenance Manuals and Illustrated Parts Catalogs. • Fault Isolation and Wiring Diagrams: Access interactive Fault Isolation Manuals and Wiring Diagram manuals for enhanced troubleshooting. Designed for aerial firefighters, air ambulance operators, law enforcement, military personnel, and more, this app ensures you have the information you need, even in the most remote locations. Download the Bell Technical Publications app today and take your technical libraries with you wherever your mission takes you.
Screenshots
Verdict
The clearest difference is rating: Our engines at 4.5 against Bell TechPubs's 4.0. Our engines also leads on iOS requirement (15.0 vs 17.0). Bell TechPubs's advantage is update cadence (every 3 months vs every 7 months). On price, review sentiment, ratings volume and ads 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.
Our engines holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Our engines ships an update every 7 months, Bell TechPubs every 3 months. The most recent releases landed on September 18, 2026 and June 1, 2026 respectively.
| Parameter | Our engines | Bell TechPubs |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | 4.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 2.7 GB | 116 MB |
| Age rating | 4+ | 4+ |
| Developer | Safran | Bell Helicopter Textron Inc. |
Customer experience
Our engines
Bell TechPubs
In-app purchases
Our engines
No in-app purchases
Bell TechPubs
No in-app purchases
Questions
Is Our engines free?
Is Bell TechPubs free?
Which has better reviews, Our engines or Bell TechPubs?
Do Our engines or Bell TechPubs have ads?
Which is updated more often, Our engines or Bell TechPubs?
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