# aSTRING Chaos vs ESC COP

The clearest difference is in-app purchases: ESC COP at none against aSTRING Chaos's 2. ESC COP also leads on ads (none vs shown) and iOS requirement (16.4 vs 18.2). On price, update cadence and device support there is nothing between them.

Both are free to download. aSTRING Chaos sells 2 in-app purchases, starting at $0.99 per 7 days. ESC COP asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | aSTRING Chaos | ESC COP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Size | 45 MB | 52 MB |
| Requires iOS | 18.2 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Bilegdemberel Sumiyabayar](https://appshunter.io/developer/1813051157) | [Erxes Inc](https://appshunter.io/developer/1544950091) |

## What reviewers say

### aSTRING Chaos

[App page](https://appshunter.io/ios/app/astring-chaos/id6745579771)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Astring+ Weekly | $0.99 | per 7 days |
| Astring+ Monthly | $1.99 | per month |


### ESC COP

[App page](https://appshunter.io/ios/app/esc-cop-17/id6786924992)

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

**In-app purchases:** none


## Frequently asked questions

### Is aSTRING Chaos free?

aSTRING Chaos is free to download, with in-app purchases available.

### Is ESC COP free?

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

### Do aSTRING Chaos or ESC COP have ads?

aSTRING Chaos shows ads; ESC COP does not.

### Which is updated more often, aSTRING Chaos or ESC COP?

aSTRING Chaos ships an update weekly, and ESC COP weekly. Most recently, aSTRING Chaos was updated on October 30, 2026 and ESC COP on November 5, 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.*