# C vs Crystal Diver

The clearest difference is update cadence: Crystal Diver at weekly against C's every 39 months. C's advantage is iOS requirement (10.0 vs 12.0). 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.

C ships an update every 39 months, Crystal Diver weekly. The most recent releases landed on September 17, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | C | Crystal Diver |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Weekly** |
| Size | 77 MB | 47 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [红奎 刘](https://appshunter.io/developer/1465054112) | [HiCold Supply Chain Information Technology Co., Ltd](https://appshunter.io/developer/1493380193) |

## What reviewers say

### C

[App page](https://appshunter.io/ios/app/c-chic/id1604533348)

**Features:** macOS Compatibility

**In-app purchases:** none


### Crystal Diver

[App page](https://appshunter.io/ios/app/crystal-diver/id1610500659)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is C free?

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

### Is Crystal Diver free?

Crystal Diver is free to download, with no in-app purchases.

### Do C or Crystal Diver have ads?

Neither C nor Crystal Diver shows ads.

### Which is updated more often, C or Crystal Diver?

C ships an update every 39 months, and Crystal Diver weekly. Most recently, C was updated on September 17, 2026 and Crystal Diver on September 19, 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.*