# Solitaire Challenges vs For Science!

The clearest difference is in-app purchases: For Science! at none against Solitaire Challenges's 6. For Science! also leads on update cadence (every 2 weeks vs every 40 months) and iOS requirement (8.0 vs 13). Solitaire Challenges's advantage is rating (3.4 vs 3.0) and ratings volume (7 vs 2). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Solitaire Challenges sells 6 one-off in-app purchases. For Science! asks for nothing beyond the download.

Solitaire Challenges holds the better App Store score, 3.4 against 3.0. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 54% of Solitaire Challenges's written reviews are positive against 50% of For Science!'s.

Solitaire Challenges ships an update every 40 months, For Science! every 2 weeks. The most recent releases landed on August 21, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Solitaire Challenges | For Science! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (7 ratings)](https://appshunter.io/ios/app/solitaire-challenges/id590507924/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/for-science/id1565887160/reviews) |
| Number of ratings | **7** | 2 |
| Positive reviews | **53.6% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 97 MB | 53 MB |
| Requires iOS | 13 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Jose Varela](https://appshunter.io/developer/336500035) | [Grey Fox Games](https://appshunter.io/developer/1165207737) |

## What reviewers say

### Solitaire Challenges

[App page](https://appshunter.io/ios/app/solitaire-challenges/id590507924)

A card game where you clear the board by matching cards one above or below the deck card. It features 160 levels with varied missions and a wild card to help build sequences. Success requires both luck and strategic card selection.

**Highlights:** Clear board by matching cards, 160 levels with varied missions, Wild card for sequence building, Scoring based on card value and sequences, Skill-based gameplay beyond luck

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 extra lives | $1.99 | one-time |
| Undo button | $1.99 | one-time |
| 5 Extra Cards | $1.99 | one-time |
| Extra Joker | $1.99 | one-time |
| Extra Time | $1.99 | one-time |
| Set of 5 lives | $2.99 | one-time |


### For Science!

[App page](https://appshunter.io/ios/app/for-science/id1565887160)

Enhance your board game experience with this companion app. It provides immersive audio, sound effects, and voice acting to bring the game's theme to life. Customize game length and difficulty for a personalized challenge.

**Highlights:** Real-time timer, Thematic music, Sound effects, Voice acting, Customizable difficulty, Adjustable game length

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solitaire Challenges free?

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

### Is For Science! free?

For Science! is free to download, with no in-app purchases.

### Which has better reviews, Solitaire Challenges or For Science!?

Solitaire Challenges is rated higher. Solitaire Challenges averages 3.4 out of 5 from 7 ratings, while For Science! averages 3.0 from 2 ratings.

### Do Solitaire Challenges or For Science! have ads?

Neither Solitaire Challenges nor For Science! shows ads.

### Which is updated more often, Solitaire Challenges or For Science!?

Solitaire Challenges ships an update every 40 months, and For Science! every 2 weeks. Most recently, Solitaire Challenges was updated on August 21, 2026 and For Science! on June 11, 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.*