# Focus Nature vs Prubi

The clearest difference is price: Prubi at Free against Focus Nature's $0.99. Focus Nature's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Prubi is free to download; Focus Nature costs $0.99 up front. Prubi sells 3 in-app purchases, starting at $29.99 per year. Focus Nature asks for nothing beyond the download.

## The numbers

| Metric | Focus Nature | Prubi |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 40 MB | 35 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [yajing pang](https://appshunter.io/developer/1745831534) | [Teawoong Kim](https://appshunter.io/developer/6799824959) |

## What reviewers say

### Focus Nature

[App page](https://appshunter.io/ios/app/focus-nature/id6746399481)

**Features:** macOS Compatibility

**In-app purchases:** none


### Prubi

[App page](https://appshunter.io/ios/app/prubi-ai-note-taking-journal/id6799824957)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Annual | $29.99 | per year |
| Prubi Real Native | $49.00 | per month |
| Premium Lifetime | $109.99 | one-time |


## Frequently asked questions

### Is Focus Nature free?

Focus Nature costs $0.99, with no in-app purchases.

### Is Prubi free?

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

### Do Focus Nature or Prubi have ads?

Neither Focus Nature nor Prubi shows ads.

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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.*