# SimplePlanes vs Genius Killer 2 Sandbox

The clearest difference is price: Genius Killer 2 Sandbox at Free against SimplePlanes's $5.99. SimplePlanes's advantage is rating (4.6 vs 3.3) and in-app purchases (none vs 7). On device support there is nothing between them.

Genius Killer 2 Sandbox is free to download; SimplePlanes costs $5.99 up front. Genius Killer 2 Sandbox sells 7 in-app purchases, starting at $3.99 per month. SimplePlanes asks for nothing beyond the download.

SimplePlanes holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: SimplePlanes has 3K ratings behind it against 82, so its average is the more settled of the two. Written reviews point the same way: 84% of SimplePlanes's written reviews are positive against 51% of Genius Killer 2 Sandbox's.

SimplePlanes ships an update every 3 months, Genius Killer 2 Sandbox every 10 months. The most recent releases landed on September 26, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | SimplePlanes | Genius Killer 2 Sandbox |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.6 (3K ratings)](https://appshunter.io/ios/app/simpleplanes/id823869162/reviews)** | [3.3 (82 ratings)](https://appshunter.io/ios/app/genius-killer-2-sandbox/id1507755806/reviews) |
| Number of ratings | **3K** | 82 |
| Positive reviews | **83.5% of reviews** | 50.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 10 months |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | **#63** | — |
| Size | 335 MB | 228 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Jundroo, LLC](https://appshunter.io/developer/311852133) | [Darya Vladislavovna](https://appshunter.io/developer/1067566962) |

## What reviewers say

### SimplePlanes

[App page](https://appshunter.io/ios/app/simpleplanes/id823869162)

**Currently charting:** #63 Top Paid · Simulation (US App Store)

Design, build, and fly your own aircraft with realistic physics. Explore a vast community-created library of over 250,000 planes or test your creations in challenging scenarios.

**Highlights:** Build custom airplanes with modular parts, Realistic flight physics simulation, Download over 250,000 community-created aircraft, Engage in flight challenges, Sandbox mode for unrestricted building, Educational tutorials on airplane design

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

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and creative sandbox
- 🚀 Powerful building mechanics
- 📥 Ability to download community-created planes
- 🎨 Customizable vehicles
- ⚙️ Realistic physics

**What reviewers complain about**

- 🐛 Bugs and glitches (crashes, invisible collisions, control issues)
- 🚫 Lack of mod support on mobile
- 🌍 Limited map/island selection on mobile
- 🔍 Difficulty finding/downloading larger planes on mobile
- 🎮 Awkward mobile controls

**Reported bugs**

- Undo function causing plane glitches
- Autopilot issues (retracting landing gear)
- Invisible collision problems
- Planes spawning in ground/air unexpectedly
- Graphical/performance issues on older devices

**Requested features**

- Add multiplayer mode
- Implement more advanced damage/failure models
- Expand map selection (e.g. desert island, underwater view)
- Improve AI behavior and add more combat-focused missions
- Introduce new vehicle types (e.g. tanks, ships, trains)


### Genius Killer 2 Sandbox

[App page](https://appshunter.io/ios/app/genius-killer-2-sandbox/id1507755806)

Design and construct unique destructive machines in an open-world sandbox. Engage in combat with various enemies across land, sea, and air using your custom-built creations. The intuitive editor allows for complex control schemes for any vehicle.

**Highlights:** Build destructive machines, Intuitive editor, Open world combat, Create flying vehicles, Build water transport, Secret weapon acquisition

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO user subscription | $3.99 | per month |
| 1000 Gold | $2.99 | one-time |
| 2500 Gold | $5.99 | one-time |
| Silver Skin | $6.99 | one-time |
| 5000 Gold | $10.99 | one-time |
| 10 000 Gold | $19.99 | one-time |
| 30 000 Gold | $99.99 | one-time |


## Frequently asked questions

### Is SimplePlanes free?

SimplePlanes costs $5.99, with no in-app purchases.

### Is Genius Killer 2 Sandbox free?

Genius Killer 2 Sandbox is free to download, with in-app purchases available.

### Which has better reviews, SimplePlanes or Genius Killer 2 Sandbox?

SimplePlanes is rated higher. SimplePlanes averages 4.6 out of 5 from 3K ratings, while Genius Killer 2 Sandbox averages 3.3 from 82 ratings.

### Do SimplePlanes or Genius Killer 2 Sandbox have ads?

Genius Killer 2 Sandbox shows ads; SimplePlanes does not.

### Which is updated more often, SimplePlanes or Genius Killer 2 Sandbox?

SimplePlanes ships an update every 3 months, and Genius Killer 2 Sandbox every 10 months. Most recently, SimplePlanes was updated on September 26, 2026 and Genius Killer 2 Sandbox on September 23, 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.*