# Focus Flow：Green Focus vs Sungong

The clearest difference is in-app purchases: Sungong at none against Focus Flow：Green Focus's 2. Focus Flow：Green Focus's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Focus Flow：Green Focus sells 2 in-app purchases, starting at $4.99 per 7 days. Sungong asks for nothing beyond the download.

## The numbers

| Metric | Focus Flow：Green Focus | Sungong |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | — | Every 11 days |
| Size | 4 MB | 51 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hong Kong Trillion Industrial Technology Group Limited](https://appshunter.io/developer/1761368993) | [joonseo park](https://appshunter.io/developer/1265149051) |

## What reviewers say

### Focus Flow：Green Focus

[App page](https://appshunter.io/ios/app/focus-flowgreen-focus/id6758989266)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Max | $4.99 | per 7 days |
| Yearly Max | $39.99 | per year |


### Sungong

[App page](https://appshunter.io/ios/app/sungong-pomodoro-study-timer/id6776498059)

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

**In-app purchases:** none


## Frequently asked questions

### Is Focus Flow：Green Focus free?

Focus Flow：Green Focus is free to download, with in-app purchases available.

### Is Sungong free?

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

### Do Focus Flow：Green Focus or Sungong have ads?

Sungong shows ads; Focus Flow：Green Focus 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.*