# Sliding Puzzle vs ViperGrid

The clearest difference is price: ViperGrid at Free against Sliding Puzzle's $1.99. Sliding Puzzle's advantage is device support and iOS requirement (16.6 vs 26.4). On in-app purchases there is nothing between them.

ViperGrid is free to download; Sliding Puzzle costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Sliding Puzzle | ViperGrid |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | Yes | — |
| Size | 89 MB | 4 MB |
| Requires iOS | **16.6** | 26.4 |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Yevhenii Kolesnyk](https://appshunter.io/developer/1893580471) |

## What reviewers say

### Sliding Puzzle

[App page](https://appshunter.io/ios/app/sliding-puzzle-lets-think/id6760445675)

**In-app purchases:** none


### ViperGrid

[App page](https://appshunter.io/ios/app/vipergrid/id6762260836)

**In-app purchases:** none


## Frequently asked questions

### Is Sliding Puzzle free?

Sliding Puzzle costs $1.99, with no in-app purchases.

### Is ViperGrid free?

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

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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.*