# Negentropy vs Number Puzzle 3D

The clearest difference is in-app purchases: Number Puzzle 3D at none against Negentropy's 7. Number Puzzle 3D also leads on iOS requirement (11.0 vs 15.0). Negentropy's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Negentropy sells 7 one-off in-app purchases. Number Puzzle 3D asks for nothing beyond the download.

## The numbers

| Metric | Negentropy | Number Puzzle 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/negentropy/id990270078/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 21 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 346 MB | 91 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Side Step Studios, LLC](https://appshunter.io/developer/912241443) | [UNCOSOFT](https://appshunter.io/developer/1377644184) |

## What reviewers say

### Negentropy

[App page](https://appshunter.io/ios/app/negentropy/id990270078)

Explore an old house by solving word puzzles in each room. Rearrange letters to escape entropy and advance to the next challenge. Can you master the wordplay to progress?

**Highlights:** Room-based puzzles, Letter rearrangement, Word formation, Progressive challenges, Escape entropy

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puzzle Set 1 | $0.99 | one-time |
| Puzzle Set 2 | $0.99 | one-time |
| Puzzle Set 3 | $0.99 | one-time |
| Puzzle Set 4 | $0.99 | one-time |
| Puzzle Set 5 | $0.99 | one-time |
| Puzzle Set 6 | $0.99 | one-time |
| Puzzle Set 7 | $0.99 | one-time |


### Number Puzzle 3D

[App page](https://appshunter.io/ios/app/number-puzzle-3d/id1665557208)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Negentropy free?

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

### Is Number Puzzle 3D free?

Number Puzzle 3D is free to download, with no in-app purchases.

### Do Negentropy or Number Puzzle 3D have ads?

Number Puzzle 3D shows ads; Negentropy does not.

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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.*