# Rails Roller vs Numbers Merge

The clearest difference is rating: Rails Roller at 4.8 against Numbers Merge's 3.9. Numbers Merge's advantage is update cadence (weekly vs every 19 months) and ratings volume (109 vs 13). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rails Roller holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Numbers Merge has 109 ratings behind it against 13, so its average is the more settled of the two.

Rails Roller ships an update every 19 months, Numbers Merge weekly. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Rails Roller | Numbers Merge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/rails-roller/id1564282166/reviews)** | [3.9 (109 ratings)](https://appshunter.io/ios/app/numbers-merge-plus-and-run/id6446265607/reviews) |
| Number of ratings | 13 | **109** |
| Positive reviews | — | 17.2% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 19 months | **Weekly** |
| Monetization | Ad-supported | Ad-supported |
| Size | 181 MB | 130 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [广杰 周](https://appshunter.io/developer/1059287118) | [ABI GLOBAL LTD.](https://appshunter.io/developer/1743349083) |

## What reviewers say

### Rails Roller

[App page](https://appshunter.io/ios/app/rails-roller/id1564282166)

Collect balls and guide them along rails to progress through levels. This game offers a simple yet engaging experience focused on collecting and riding.

**Highlights:** Ball collection mechanics, Rail riding gameplay, Level progression, Simple controls

**Features:** macOS Compatibility

**In-app purchases:** none


### Numbers Merge

[App page](https://appshunter.io/ios/app/numbers-merge-plus-and-run/id6446265607)

Collect smaller numbers to create larger ones in this challenging number-running game. Swipe to gather numbers, avoid obstacles, and break through walls to reach new heights.

**Highlights:** Collect smaller numbers, Create bigger numbers, Number running challenges, Avoid obstacles, Break through walls, Reach final goal

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

**In-app purchases:** none


## Frequently asked questions

### Is Rails Roller free?

Rails Roller is free to download, with no in-app purchases.

### Is Numbers Merge free?

Numbers Merge is free to download, with no in-app purchases.

### Which has better reviews, Rails Roller or Numbers Merge?

Rails Roller is rated higher. Rails Roller averages 4.8 out of 5 from 13 ratings, while Numbers Merge averages 3.9 from 109 ratings.

### Do Rails Roller or Numbers Merge have ads?

Both Rails Roller and Numbers Merge show ads.

### Which is updated more often, Rails Roller or Numbers Merge?

Rails Roller ships an update every 19 months, and Numbers Merge weekly. Most recently, Rails Roller was updated on October 6, 2026 and Numbers Merge on October 24, 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.*