# Duo Runner 3D vs Letter Roll

The clearest difference is in-app purchases: Letter Roll at none against Duo Runner 3D's 1. Duo Runner 3D's advantage is ads (none vs shown) and update cadence (monthly vs every 29 months). On price, 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. Letter Roll asks for nothing beyond the download.

Duo Runner 3D ships an update monthly, Letter Roll every 29 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Duo Runner 3D | Letter Roll |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 29 months |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 79 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IK SEONG PARK](https://appshunter.io/developer/488068869) | [omer cetin](https://appshunter.io/developer/1584332419) |

## What reviewers say

### 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 |


### Letter Roll

[App page](https://appshunter.io/ios/app/letter-roll/id1589463270)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Duo Runner 3D free?

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

### Is Letter Roll free?

Letter Roll is free to download, with no in-app purchases.

### Do Duo Runner 3D or Letter Roll have ads?

Letter Roll shows ads; Duo Runner 3D does not.

### Which is updated more often, Duo Runner 3D or Letter Roll?

Duo Runner 3D ships an update monthly, and Letter Roll every 29 months. Most recently, Duo Runner 3D was updated on October 13, 2026 and Letter Roll on October 15, 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.*