# Nitro Flip vs Mental Boost Puzzle World

Nitro Flip and Mental Boost Puzzle World 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 | Nitro Flip | Mental Boost Puzzle World |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Size | 112 MB | 118 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Yongyu Network Technology Co.LTD](https://appshunter.io/developer/1691830121) | [永强 代](https://appshunter.io/developer/1866734901) |

## What reviewers say

### Nitro Flip

[App page](https://appshunter.io/ios/app/nitro-flip/id6748822701)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mental Boost Puzzle World

[App page](https://appshunter.io/ios/app/mental-boost-puzzle-world/id6757914384)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nitro Flip free?

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

### Is Mental Boost Puzzle World free?

Mental Boost Puzzle World is free to download, with no in-app purchases.

### Do Nitro Flip or Mental Boost Puzzle World have ads?

Both Nitro Flip and Mental Boost Puzzle World 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.*