# Kolf vs Echo Chamber

The clearest difference is in-app purchases: Echo Chamber at none against Kolf's 1. Echo Chamber also leads on ads (none vs shown). Kolf's advantage is iOS requirement (12.0 vs 15.6). On price and device support there is nothing between them.

Both are free to download. Kolf sells 1 one-off in-app purchase. Echo Chamber asks for nothing beyond the download.

## The numbers

| Metric | Kolf | Echo Chamber |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Size | 126 MB | 28 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ciro Manna](https://appshunter.io/developer/1461361803) | [APPROX TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1799184649) |

## What reviewers say

### Kolf

[App page](https://appshunter.io/ios/app/kolf/id1617580386)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kolf - No More Ads | $1.99 | one-time |


### Echo Chamber

[App page](https://appshunter.io/ios/app/echo-chamber-puzzle/id6751847059)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kolf free?

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

### Is Echo Chamber free?

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

### Do Kolf or Echo Chamber have ads?

Kolf shows ads; Echo Chamber does not.

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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.*