# One Hand Clapping vs Crystal

The clearest difference is price: Crystal at $0.99 against One Hand Clapping's $10.99. One Hand Clapping's advantage is rating (3.9 vs 2.0) and review sentiment (27% vs 0%). On ads, in-app purchases, monetization model and device support there is nothing between them.

One Hand Clapping costs $10.99 and Crystal $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

One Hand Clapping holds the better App Store score, 3.9 against 2.0. That said, the two scores are not equally well evidenced: One Hand Clapping has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 27% of One Hand Clapping's written reviews are positive against 0% of Crystal's.

## The numbers

| Metric | One Hand Clapping | Crystal |
| --- | --- | --- |
| Price | $10.99 | **$0.99** |
| Rating | **[3.9 (14 ratings)](https://appshunter.io/ios/app/one-hand-clapping-ohc/id1524426643/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/crystal-math/id6468681776/reviews) |
| Number of ratings | **14** | 1 |
| Positive reviews | **27.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | Paid |
| Best chart rank | **#61** | — |
| Size | 693 MB | 475 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [THQ Nordic Mobile GmbH](https://appshunter.io/developer/316574911) | [DeckTronic, LLC](https://appshunter.io/developer/1703505831) |

## What reviewers say

### One Hand Clapping

[App page](https://appshunter.io/ios/app/one-hand-clapping-ohc/id1524426643)

**Currently charting:** #61 Top Paid · Music (US App Store)

A 2D platformer where you solve puzzles by singing or humming into your microphone. Discover the power of your voice to change the game world and build confidence. No vocal talent required, just enjoy the journey.

**Highlights:** Solve puzzles with your voice, Explore six vibrant biomes, Use singing, humming, and beatboxing, Meet helpful characters, Build vocal confidence, Game Center support, Full controller support

**Features:** Vision Pro support

**In-app purchases:** none


### Crystal

[App page](https://appshunter.io/ios/app/crystal-math/id6468681776)

Experience a math-focused runner game inspired by popular social media ads. Navigate a path, make quick numerical choices, and test your skills against challenges. Discover if the fun advertised matches the actual gameplay.

**Highlights:** Math-based runner gameplay, Numerical choice mechanics, Inspired by social media ads, Challenging gameplay, Single-player experience

**In-app purchases:** none


## Frequently asked questions

### Is One Hand Clapping free?

One Hand Clapping costs $10.99, with no in-app purchases.

### Is Crystal free?

Crystal costs $0.99, with no in-app purchases.

### Which has better reviews, One Hand Clapping or Crystal?

One Hand Clapping is rated higher. One Hand Clapping averages 3.9 out of 5 from 14 ratings, while Crystal averages 2.0 from 1 ratings.

### Do One Hand Clapping or Crystal have ads?

Neither One Hand Clapping nor Crystal shows 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.*