# Mental Exercise vs Challenge Sort

The clearest difference is update cadence: Mental Exercise at every 2 days against Challenge Sort's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Mental Exercise ships an update every 2 days, Challenge Sort fortnightly. Both last shipped on September 24, 2026.

## The numbers

| Metric | Mental Exercise | Challenge Sort |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (19 ratings)](https://appshunter.io/ios/app/mental-exercise-solitaire/id6776508801/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Ad-supported | — |
| Size | 191 MB | 151 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [RAHMAN BIN ADEN](https://appshunter.io/developer/1177342882) | [Lutfi AlBragi](https://appshunter.io/developer/1691520787) |

## What reviewers say

### 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


### Challenge Sort

[App page](https://appshunter.io/ios/app/challenge-sort-mind-relax/id6781243727)

**In-app purchases:** none


## Frequently asked questions

### Is Mental Exercise free?

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

### Is Challenge Sort free?

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

### Do Mental Exercise or Challenge Sort have ads?

Both Mental Exercise and Challenge Sort show ads.

### Which is updated more often, Mental Exercise or Challenge Sort?

Mental Exercise ships an update every 2 days, and Challenge Sort fortnightly. Most recently, Mental Exercise was updated on September 24, 2026 and Challenge Sort on September 24, 2026.

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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.*