# How do Things Fly? vs Intro Airplane Design

The clearest difference is price: How do Things Fly? at Free against Intro Airplane Design's $14.99. How do Things Fly? also leads on update cadence (every 4 months vs every 9 months) and device support (3 vs 1). Intro Airplane Design's advantage is in-app purchases (none vs 4) and review sentiment (100% vs 80%). On rating, ratings volume, ads and iOS requirement there is nothing between them.

How do Things Fly? is free to download; Intro Airplane Design costs $14.99 up front. How do Things Fly? sells 4 in-app purchases, starting at $7.99 per month. Intro Airplane Design asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for How do Things Fly? against 5.0 for Intro Airplane Design. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 80% of How do Things Fly?'s written reviews are positive against 100% of Intro Airplane Design's.

How do Things Fly? ships an update every 4 months, Intro Airplane Design every 9 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | How do Things Fly? | Intro Airplane Design |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/how-do-things-fly/id1503652155/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/intro-airplane-design/id1568305325/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 551 MB | 35 MB |
| Requires iOS | 13.0 | **12.0.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Learny Land](https://appshunter.io/developer/1380183676) | [Seeds Software](https://appshunter.io/developer/507836260) |

## What reviewers say

### How do Things Fly?

[App page](https://appshunter.io/ios/app/how-do-things-fly/id1503652155)

Explore the principles of flight through interactive play with various aircraft. Learn about physics, logic, and scientific concepts in a fun, stress-free environment. Designed for children and families to discover how things fly.

**Highlights:** Interactive flight simulation, Learn physics and scientific concepts, Pilot planes, helicopters, drones, and balloons, Develop scientific thinking and logic, Intuitive interface for children, Content for ages 5 and up

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Learny Land Pass - Monthly | $7.99 | per month |
| Learny Land Pass - Monthly | $8.99 | per month |
| Learny Land Pass - Annual | $39.99 | per year |
| Learny Land Pass - Annual | $49.99 | per year |


### Intro Airplane Design

[App page](https://appshunter.io/ios/app/intro-airplane-design/id1568305325)

Explore aeronautics through interactive simulations and design tools. Learn STEM principles by designing, building, and flying your own gliders and powered aircraft. This app offers comprehensive curriculum content for classroom use or self-study.

**Highlights:** Interactive STEM learning, Airplane design tools, Aeronautics simulations, Offline lab plans, Classroom curriculum, Wind tunnel simulation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is How do Things Fly? free?

How do Things Fly? is free to download, with in-app purchases available.

### Is Intro Airplane Design free?

Intro Airplane Design costs $14.99, with no in-app purchases.

### Which has better reviews, How do Things Fly? or Intro Airplane Design?

How do Things Fly? and Intro Airplane Design are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do How do Things Fly? or Intro Airplane Design have ads?

Neither How do Things Fly? nor Intro Airplane Design shows ads.

### Which is updated more often, How do Things Fly? or Intro Airplane Design?

How do Things Fly? ships an update every 4 months, and Intro Airplane Design every 9 months. Most recently, How do Things Fly? was updated on October 6, 2026 and Intro Airplane Design on October 10, 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.*