Airfoil Design vs Graph Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Airfoil Design
This application allows users to design and analyze aircraft wing sections using advanced numeric methods and CFD simulations. It offers tools for creating custom airfoil geometries, real-time aerodynamic analysis, and importing existing designs.
- NACA airfoil generation
- Real-time aerodynamic analysis
- Airfoil import from database
- Custom mesh generation
- CFD simulation engine
- Streamlines and CP vector visualization
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Airfoil Design is the ultimate tool for designing and analyzing aircraft wing sections. With advanced numeric methods, custom mesh generation, and real-time aerodynamic analysis, you can create and refine complex airfoil geometries with precision. Our CFD simulation engine accurately solves Euler's equations, providing insights into compressible, non-viscous flows, including shockwave formations. Key Features: - Design Flexibility: Generate and customize airfoil geometries with 4 types: NACA 4-digit, NACA 5-digit, Modified NACA 4-digit, and Modified NACA 5-digit airfoils. - Real-Time Analysis: Adjust airfoil shapes using intuitive sliders and instantly see the impact on aerodynamic coefficients. - Airfoil Import: Easily import existing airfoils from the airfoiltools.com database. - Custom Mesh Generation: Create o-type grid meshes with our built-in generator and export them for use in other applications. - Advanced CFD Simulation: Simulate airflow around your designs with our powerful CFD engine, now featuring touch pan/zoom, streamlines, CP vectors, and second-order solver. Visualize results with the new Coolwarm color map and export them as PDFs. Whether you’re a professional aerospace engineer or a student of aerodynamics, Airfoil Design offers the tools you need to innovate and explore. Download now to start your aerodynamic journey on your iPad or iPhone. Note: The app is continuously being improved, with new features and bug fixes on the way.
Graph Notes
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Graph Notes – Visual Notes Graph Notes – Visual Notes helps you organize your thoughts, ideas, and knowledge using a powerful graph-based note system. Instead of traditional lists, create visual notes with nodes and connections to better understand relationships between ideas. Build mind maps, knowledge graphs, project plans, or learning maps with an interactive drag-and-drop interface. Whether you are a student, developer, researcher, or creator, Graph Notes makes brainstorming and organizing information easier and more visual. Key Features • Visual Node Editor – Create notes as nodes and connect them with edges • Drag & Drop Interface – Easily move and arrange notes on the canvas • Graph View Organization – Understand relationships between ideas instantly • Mind Map Style Notes – Perfect for brainstorming and planning • Zoom & Pan Canvas – Navigate large note graphs smoothly • Simple & Clean UI – Focus on your ideas without distractions • Fast & Lightweight – Designed for performance and simplicity Perfect For • Brainstorming ideas • Mind mapping • Knowledge management • Study notes • Project planning • Visual thinking Stop using boring linear notes. Start building connected knowledge with Graph Notes. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://bugblitz98.github.io/GraphNotes/privacy.html
Screenshots
Verdict
The clearest difference is ads: Airfoil Design at none against Graph Notes's shown. Airfoil Design also leads on update cadence (every 10 days vs every 6 weeks). On price, in-app purchases, device support and iOS requirement 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.
Airfoil Design ships an update every 10 days, Graph Notes every 6 weeks. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.
| Parameter | Airfoil Design | Graph Notes |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (17 ratings) — better | — |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Every 10 days — better | Every 6 weeks |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 122 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Charles Bilodeau-Berube | Animesh Manna |
In-app purchases
Airfoil Design
No in-app purchases
Graph Notes
No in-app purchases









