# Roof Rails vs Gem Stack

The clearest difference is ratings volume: Roof Rails at 252K against Gem Stack's 36K. Roof Rails also leads on review sentiment (43% vs 35%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Roof Rails sells 1 one-off in-app purchase and Gem Stack sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Roof Rails against 4.6 for Gem Stack. That said, the two scores are not equally well evidenced: Roof Rails has 252K ratings behind it against 36K, so its average is the more settled of the two. Written reviews are what separate them: 43% of Roof Rails's written reviews are positive against 35% of Gem Stack's.

Roof Rails ships an update every 5 days, Gem Stack weekly. Both last shipped on September 25, 2026.

## The numbers

| Metric | Roof Rails | Gem Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (252K ratings)](https://appshunter.io/ios/app/roof-rails/id1524760095/reviews) | **[4.6 (36K ratings)](https://appshunter.io/ios/app/gem-stack/id1601511059/reviews)** |
| Number of ratings | **252K** | 36K |
| Positive reviews | **43.2% of reviews** | 34.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 240 MB | 389 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Voodoo](https://appshunter.io/developer/714804730) | [Rollic Games](https://appshunter.io/developer/1452111779) |

## What reviewers say

### Roof Rails

[App page](https://appshunter.io/ios/app/roof-rails/id1524760095)

A challenging and addictive arcade game that is easy to learn but difficult to master. Perfect for quick gaming sessions.

**Highlights:** Easy to pick up, Hard to put down, New and original gameplay, Perfect for killing time

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

**In-app purchases (1)**

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

**What reviewers like**

- 🚀 Fun and addictive game
- 👍 Great time-passer
- 🤩 Incredible experience

**What reviewers complain about**

- 🔥 Too many ads
- 🐛 Glitchy and buggy
- 🤯 Impossible levels

**Reported bugs**

- Levels with impossible obstacles
- Freezing and crashing issues
- Ads blocking UI elements

**Requested features**

- More difficult levels
- Longer levels
- Use for gems after unlocking characters
- Ability to change roller/bar
- Add music/sound


### Gem Stack

[App page](https://appshunter.io/ios/app/gem-stack/id1601511059)

Collect and stack precious gems while navigating a treacherous obstacle course. Dodge traps, merge valuable gems, and protect your growing pile to reach the finish line and claim your rewards. Experience satisfying gem-collecting gameplay with bright visuals and addictive progression.

**Highlights:** Satisfying gem runner gameplay, Obstacle dodging action, Gem merging mechanics, Bright and glittering visuals, Addictive progression system, Collect and stack gems

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $7.99 | one-time |

**What reviewers like**

- 🎮 Fun and addictive gameplay
- 👍 Satisfying gem crafting
- 🕹️ Works offline

**What reviewers complain about**

- 🔍 Too many ads
- 🤔 Paid 'no ads' feature doesn't work
- 🐌 Glitchy and slow performance
- 💰 Purchases don't remove ads

**Reported bugs**

- Game crashes after certain levels
- Purchases not properly registered
- Inconsistent end-of-level experience

**Requested features**

- More level variety and difficulty progression
- Ability to customize gem types and jewelry
- Better in-game currency system
- Improved customer support


## Frequently asked questions

### Is Roof Rails free?

Roof Rails is free to download, with in-app purchases available.

### Is Gem Stack free?

Gem Stack is free to download, with in-app purchases available.

### Which has better reviews, Roof Rails or Gem Stack?

Gem Stack is rated higher. Roof Rails averages 4.5 out of 5 from 252K ratings, while Gem Stack averages 4.6 from 36K ratings.

### Do Roof Rails or Gem Stack have ads?

Both Roof Rails and Gem Stack show ads.

### Which is updated more often, Roof Rails or Gem Stack?

Roof Rails ships an update every 5 days, and Gem Stack weekly. Most recently, Roof Rails was updated on September 25, 2026 and Gem Stack on September 25, 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.*