# Word Crush PRO vs String Theory Game

The clearest difference is price: String Theory Game at Free against Word Crush PRO's $2.99. String Theory Game also leads on update cadence (every 2 days vs every 21 months) and iOS requirement (10.0 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

String Theory Game is free to download; Word Crush PRO costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Word Crush PRO ships an update every 21 months, String Theory Game every 2 days. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Word Crush PRO | String Theory Game |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/string-theory-game/id6479223958/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 18 MB | 43 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michal Sajban](https://appshunter.io/developer/1523258286) | [Andrew Viesta](https://appshunter.io/developer/1735241726) |

## What reviewers say

### Word Crush PRO

[App page](https://appshunter.io/ios/app/word-crush-pro/id1426530274)

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

**In-app purchases:** none


### String Theory Game

[App page](https://appshunter.io/ios/app/string-theory-game/id6479223958)

A vibrant puzzle game where you recreate patterns by drawing loops between pegs. Strategically place and overlap loops to match the target design with minimal moves. Offers handcrafted puzzles, daily challenges, and endless free play.

**Highlights:** Pattern matching puzzles, Loop drawing mechanics, Color-based loop filling, 60+ handcrafted puzzles, Daily challenges, Free play modes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Word Crush PRO free?

Word Crush PRO costs $2.99, with no in-app purchases.

### Is String Theory Game free?

String Theory Game is free to download, with no in-app purchases.

### Do Word Crush PRO or String Theory Game have ads?

Neither Word Crush PRO nor String Theory Game shows ads.

### Which is updated more often, Word Crush PRO or String Theory Game?

Word Crush PRO ships an update every 21 months, and String Theory Game every 2 days. Most recently, Word Crush PRO was updated on October 8, 2026 and String Theory Game on October 9, 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.*