# Airfoil Design vs Graph Notes

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.

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.

## The numbers

| Metric | Airfoil Design | Graph Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (17 ratings)](https://appshunter.io/ios/app/airfoil-design/id6444901600/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Monetization | Free | — |
| Size | 122 MB | 34 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Charles Bilodeau-Berube](https://appshunter.io/developer/1657784873) | [Animesh Manna](https://appshunter.io/developer/6789635189) |

## What reviewers say

### Airfoil Design

[App page](https://appshunter.io/ios/app/airfoil-design/id6444901600)

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.

**Highlights:** NACA airfoil generation, Real-time aerodynamic analysis, Airfoil import from database, Custom mesh generation, CFD simulation engine, Streamlines and CP vector visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### Graph Notes

[App page](https://appshunter.io/ios/app/graph-notes-visual-notes/id6799601737)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Airfoil Design free?

Airfoil Design is free to download, with no in-app purchases.

### Is Graph Notes free?

Graph Notes is free to download, with no in-app purchases.

### Do Airfoil Design or Graph Notes have ads?

Graph Notes shows ads; Airfoil Design does not.

### Which is updated more often, Airfoil Design or Graph Notes?

Airfoil Design ships an update every 10 days, and Graph Notes every 6 weeks. Most recently, Airfoil Design was updated on September 30, 2026 and Graph Notes on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*