# BUMPY UFO vs SlingShot Crystals

The clearest difference is in-app purchases: BUMPY UFO at none against SlingShot Crystals's 1. BUMPY UFO also leads on iOS requirement (8.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. SlingShot Crystals sells 1 one-off in-app purchase. BUMPY UFO asks for nothing beyond the download.

## The numbers

| Metric | BUMPY UFO | SlingShot Crystals |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | — |
| Size | 48 MB | 137 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KAEGUREE](https://appshunter.io/developer/1183810155) | [Inventrix B.V.](https://appshunter.io/developer/1665450175) |

## What reviewers say

### BUMPY UFO

[App page](https://appshunter.io/ios/app/bumpy-ufo/id1503435478)

**Features:** macOS Compatibility

**In-app purchases:** none


### SlingShot Crystals

[App page](https://appshunter.io/ios/app/slingshot-crystals/id6476523538)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $0.99 | one-time |


## Frequently asked questions

### Is BUMPY UFO free?

BUMPY UFO is free to download, with no in-app purchases.

### Is SlingShot Crystals free?

SlingShot Crystals is free to download, with in-app purchases available.

### Do BUMPY UFO or SlingShot Crystals have ads?

Both BUMPY UFO and SlingShot Crystals 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.*