# Sand Bump vs Duo Runner 3D

The clearest difference is in-app purchases: Sand Bump at none against Duo Runner 3D's 1. Sand Bump also leads on update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Duo Runner 3D sells 1 one-off in-app purchase. Sand Bump asks for nothing beyond the download.

Sand Bump ships an update weekly, Duo Runner 3D monthly. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Sand Bump | Duo Runner 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (17 ratings)](https://appshunter.io/ios/app/duo-runner-3d/id1562845789/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 64 MB | 38 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [App Swim LLC](https://appshunter.io/developer/1475582966) | [IK SEONG PARK](https://appshunter.io/developer/488068869) |

## What reviewers say

### Sand Bump

[App page](https://appshunter.io/ios/app/sand-bump/id1522548503)

**Features:** macOS Compatibility

**In-app purchases:** none


### Duo Runner 3D

[App page](https://appshunter.io/ios/app/duo-runner-3d/id1562845789)

Engage in a thrilling running race where you collect numbers to grow your character. Navigate through challenging obstacles and compete against others to become the ultimate number run master.

**Highlights:** Number collection gameplay, 3D running races, Obstacle course challenges, Competitive multiplayer, Race master game

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No ads | $2.99 | one-time |


## Frequently asked questions

### Is Sand Bump free?

Sand Bump is free to download, with no in-app purchases.

### Is Duo Runner 3D free?

Duo Runner 3D is free to download, with in-app purchases available.

### Do Sand Bump or Duo Runner 3D have ads?

Neither Sand Bump nor Duo Runner 3D shows ads.

### Which is updated more often, Sand Bump or Duo Runner 3D?

Sand Bump ships an update weekly, and Duo Runner 3D monthly. Most recently, Sand Bump was updated on October 15, 2026 and Duo Runner 3D on October 13, 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.*