# ONECHAMBER vs Foosung

The clearest difference is update cadence: Foosung at every 3 days against ONECHAMBER's monthly. Foosung also leads on iOS requirement (15 vs 18.0). 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.

ONECHAMBER ships an update monthly, Foosung every 3 days. Both last shipped on October 9, 2026.

## The numbers

| Metric | ONECHAMBER | Foosung |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 155 MB | 13 MB |
| Requires iOS | 18.0 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Douzone Bizon Co.,Ltd.](https://appshunter.io/developer/871672498) | [FUNNNEW](https://appshunter.io/developer/791077282) |

## What reviewers say

### ONECHAMBER

[App page](https://appshunter.io/ios/app/onechamber/id6478144623)

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

**In-app purchases:** none


### Foosung

[App page](https://appshunter.io/ios/app/foosung/id6800533592)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ONECHAMBER free?

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

### Is Foosung free?

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

### Do ONECHAMBER or Foosung have ads?

Neither ONECHAMBER nor Foosung shows ads.

### Which is updated more often, ONECHAMBER or Foosung?

ONECHAMBER ships an update monthly, and Foosung every 3 days. Most recently, ONECHAMBER was updated on October 9, 2026 and Foosung 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.*