# Double Helix 3D vs Block Pull N' Push

Double Helix 3D and Block Pull N' Push 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 | Double Helix 3D | Block Pull N' Push |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 months |
| Size | 73 MB | 129 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Antonis Panoris](https://appshunter.io/developer/994248872) | [Henrique Silva](https://appshunter.io/developer/492945915) |

## What reviewers say

### Double Helix 3D

[App page](https://appshunter.io/ios/app/double-helix-3d/id1615961011)

**In-app purchases:** none


### Block Pull N' Push

[App page](https://appshunter.io/ios/app/block-pull-n-push/id6498900801)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Double Helix 3D free?

Double Helix 3D is free to download, with no in-app purchases.

### Is Block Pull N' Push free?

Block Pull N' Push is free to download, with no in-app purchases.

### Do Double Helix 3D or Block Pull N' Push have ads?

Both Double Helix 3D and Block Pull N' Push 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.*