# Sky Force Industrial Legend vs Mental Exercise

The clearest difference is in-app purchases: Mental Exercise at none against Sky Force Industrial Legend's 1. Sky Force Industrial Legend's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Sky Force Industrial Legend sells 1 one-off in-app purchase. Mental Exercise asks for nothing beyond the download.

## The numbers

| Metric | Sky Force Industrial Legend | Mental Exercise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (313 ratings)](https://appshunter.io/ios/app/mental-exercise-solitaire/id6776508801/reviews)** |
| Number of ratings | — | **313** |
| Positive reviews | — | 23.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | — | Every 2 months |
| Monetization | — | Ad-supported |
| Size | 591 MB | 191 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Macrobian Games](https://appshunter.io/developer/950173977) | [RAHMAN BIN ADEN](https://appshunter.io/developer/1177342882) |

## What reviewers say

### Sky Force Industrial Legend

[App page](https://appshunter.io/ios/app/sky-force-industrial-legend/id6745731533)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Mental Exercise

[App page](https://appshunter.io/ios/app/mental-exercise-solitaire/id6776508801)

A classic card game offering endless levels and a zero-pressure experience for brain training and relaxation. Collect puzzle pieces by clearing games to unlock beautiful artwork. Features unlimited hints, undo, and a magic wand booster.

**Highlights:** Endless solitaire levels, Zero-pressure gameplay, Unlimited hints, Easy undo function, Magic Wand booster, Jigsaw puzzle collection, Unlockable artwork

**In-app purchases:** none


## Frequently asked questions

### Is Sky Force Industrial Legend free?

Sky Force Industrial Legend is free to download, with in-app purchases available.

### Is Mental Exercise free?

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

### Do Sky Force Industrial Legend or Mental Exercise have ads?

Both Sky Force Industrial Legend and Mental Exercise 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.*