# Rockfall Challenge vs Gem Merge Flow

Rockfall Challenge and Gem Merge Flow are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Rockfall Challenge | Gem Merge Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 76 MB | 13 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Evgeniy Kosilkov](https://appshunter.io/developer/1709392697) | [嘉燊 张](https://appshunter.io/developer/1881495278) |

## What reviewers say

### Rockfall Challenge

[App page](https://appshunter.io/ios/app/rockfall-challenge/id6744845987)

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

**In-app purchases:** none


### Gem Merge Flow

[App page](https://appshunter.io/ios/app/gem-merge-flow/id6761517945)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rockfall Challenge free?

Rockfall Challenge is free to download, with no in-app purchases.

### Is Gem Merge Flow free?

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

### Do Rockfall Challenge or Gem Merge Flow have ads?

Neither Rockfall Challenge nor Gem Merge Flow shows ads.

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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.*