# Spiral helix vs Rolling Ball

The clearest difference is iOS requirement: Spiral helix at 7.0 against Rolling Ball's 13.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Spiral helix | Rolling Ball |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Size | 42 MB | 168 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [阳州 张](https://appshunter.io/developer/1213841587) | [Sujal Jain](https://appshunter.io/developer/1713798544) |

## What reviewers say

### Spiral helix

[App page](https://appshunter.io/ios/app/spiral-helix/id1294561498)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rolling Ball

[App page](https://appshunter.io/ios/app/rolling-ball-strike-master-3d/id6739831443)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spiral helix free?

Spiral helix is free to download, with no in-app purchases.

### Is Rolling Ball free?

Rolling Ball is free to download, with no in-app purchases.

### Do Spiral helix or Rolling Ball have ads?

Neither Spiral helix nor Rolling Ball 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.*