# iTaiwan DarkChess vs For Science!

The clearest difference is rating: For Science! at 3.0 against iTaiwan DarkChess's 1.0. For Science! also leads on in-app purchases (none vs 15) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. iTaiwan DarkChess sells 15 one-off in-app purchases. For Science! asks for nothing beyond the download.

For Science! holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 28% of iTaiwan DarkChess's written reviews are positive against 50% of For Science!'s.

iTaiwan DarkChess ships an update every 4 weeks, For Science! every 2 weeks. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | iTaiwan DarkChess | For Science! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/itaiwan-darkchess/id599819975/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/for-science/id1565887160/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 27.6% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 386 MB | 53 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 9+ |
| Developer | [AVECTOR TECH CO., LTD.](https://appshunter.io/developer/585564224) | [Grey Fox Games](https://appshunter.io/developer/1165207737) |

## What reviewers say

### iTaiwan DarkChess

[App page](https://appshunter.io/ios/app/itaiwan-darkchess/id599819975)

Engage in classic DarkChess with both online and offline modes. Play with friends or practice your skills against AI. Features include character updates and daily point refills.

**Highlights:** Online and offline two-player modes, Unlimited offline version access, One-click account creation, Online play with PC users, Single-player ranked records, Regular character updates

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 60 rounds game ad-free mode | $0.99 | one-time |
| 60 rounds double the multiplier | $0.99 | one-time |
| 60 rounds counter attack | $0.99 | one-time |
| 60 rounds annihilation bonus | $0.99 | one-time |
| 1 iTW Gold Coins | $1.99 | one-time |
| 30 days ad-free mode | $1.99 | one-time |
| 30 days double points multiplier | $1.99 | one-time |
| 30 days starts with counter attack | $1.99 | one-time |
| 30 days double annihilation bonus | $1.99 | one-time |
| 5 iTW Gold Coins | $9.99 | one-time |
| 6 iTW Gold Coins | $12.99 | one-time |
| 11 iTW Gold Coins | $19.99 | one-time |
| 20 iTW Gold Coins | $35.99 | one-time |
| 40 iTW Gold Coins | $69.99 | one-time |
| 60 iTW Gold Coins | $99.99 | 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 iTaiwan DarkChess free?

iTaiwan DarkChess 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, iTaiwan DarkChess or For Science!?

For Science! is rated higher. iTaiwan DarkChess averages 1.0 out of 5 from 2 ratings, while For Science! averages 3.0 from 2 ratings.

### Do iTaiwan DarkChess or For Science! have ads?

iTaiwan DarkChess shows ads; For Science! does not.

### Which is updated more often, iTaiwan DarkChess or For Science!?

iTaiwan DarkChess ships an update every 4 weeks, and For Science! every 2 weeks. Most recently, iTaiwan DarkChess was updated on October 22, 2026 and For Science! on October 20, 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.*