# Under Crush vs Stack Fortress

The clearest difference is in-app purchases: Stack Fortress at none against Under Crush's 9. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Under Crush sells 9 one-off in-app purchases. Stack Fortress asks for nothing beyond the download.

## The numbers

| Metric | Under Crush | Stack Fortress |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/under-crush/id6749669156/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 134 MB | 168 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Evocentron LLC](https://appshunter.io/developer/1820074067) | [怡平 刘](https://appshunter.io/developer/1531289639) |

## What reviewers say

### Under Crush

[App page](https://appshunter.io/ios/app/under-crush/id6749669156)

A physics-based crane game that challenges your timing and strategy. Swing, drop, and smash obstacles to collect keys and earn gems. Unlock powerful abilities and compete on global leaderboards.

**Highlights:** Physics-based crane gameplay, Strategic obstacle smashing, Key collection for progression, Unlockable abilities (Thunderstorm, Extra Time, Super Load), Dynamic level challenges (e.g., earthquakes), Global leaderboard competition

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Gems | $1.99 | one-time |
| 200 Gems | $2.99 | one-time |
| Gem No Ads | $4.99 | one-time |
| 400 Gems | $5.99 | one-time |
| 800 Gems | $9.99 | one-time |
| 1000 Gems | $12.99 | one-time |
| 1500 Gems | $15.99 | one-time |
| 2000 Gems | $19.99 | one-time |
| 5000 Gems | $39.99 | one-time |


### Stack Fortress

[App page](https://appshunter.io/ios/app/stack-fortress/id6756401309)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Under Crush free?

Under Crush is free to download, with in-app purchases available.

### Is Stack Fortress free?

Stack Fortress is free to download, with no in-app purchases.

### Do Under Crush or Stack Fortress have ads?

Both Under Crush and Stack Fortress show 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.*