# Marble Mojo 3D vs Perfect Circle OTG

The clearest difference is in-app purchases: Perfect Circle OTG at none against Marble Mojo 3D's 4. Perfect Circle OTG also leads on update cadence (every 5 days vs every 5 months) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Marble Mojo 3D sells 4 one-off in-app purchases. Perfect Circle OTG asks for nothing beyond the download.

Marble Mojo 3D ships an update every 5 months, Perfect Circle OTG every 5 days. The most recent releases landed on June 11, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Marble Mojo 3D | Perfect Circle OTG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/marble-mojo-3d/id1644468712/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 35 MB | 23 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Wiemer](https://appshunter.io/developer/1463433505) | [Japality Limited](https://appshunter.io/developer/1574046707) |

## What reviewers say

### Marble Mojo 3D

[App page](https://appshunter.io/ios/app/marble-mojo-3d/id1644468712)

Navigate intricate 3D obstacle courses using a colorful marble. Control the marble by tilting your device, offering an intuitive, tap-free gameplay experience. Discover a vast array of challenging levels.

**Highlights:** Thousands of 3D obstacle courses, Tilt-to-control gameplay, Intuitive single-player experience, Colorful marble graphics, Challenging level design

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 Coins | $0.99 | one-time |
| Remove ads | $0.99 | one-time |
| 100 Coins | $1.99 | one-time |
| 200 Coins | $2.99 | one-time |


### Perfect Circle OTG

[App page](https://appshunter.io/ios/app/perfect-circle-otg/id6752425506)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Marble Mojo 3D free?

Marble Mojo 3D is free to download, with in-app purchases available.

### Is Perfect Circle OTG free?

Perfect Circle OTG is free to download, with no in-app purchases.

### Do Marble Mojo 3D or Perfect Circle OTG have ads?

Both Marble Mojo 3D and Perfect Circle OTG show ads.

### Which is updated more often, Marble Mojo 3D or Perfect Circle OTG?

Marble Mojo 3D ships an update every 5 months, and Perfect Circle OTG every 5 days. Most recently, Marble Mojo 3D was updated on June 11, 2026 and Perfect Circle OTG on September 7, 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.*