# Five Hours vs Prubi

The clearest difference is price: Prubi at Free against Five Hours's $1.99. Prubi also leads on update cadence (every 3 days vs every 7 months) and iOS requirement (16.4 vs 18.0). Five Hours's advantage is in-app purchases (none vs 3). On ads and device support there is nothing between them.

Prubi is free to download; Five Hours costs $1.99 up front. Prubi sells 3 in-app purchases, starting at $29.99 per year. Five Hours asks for nothing beyond the download.

Five Hours ships an update every 7 months, Prubi every 3 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Five Hours | Prubi |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Size | 3 MB | 35 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tiago Costa](https://appshunter.io/developer/1811300069) | [Teawoong Kim](https://appshunter.io/developer/6799824959) |

## What reviewers say

### Five Hours

[App page](https://appshunter.io/ios/app/five-hours/id6745220843)

**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 Five Hours free?

Five Hours costs $1.99, with no in-app purchases.

### Is Prubi free?

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

### Do Five Hours or Prubi have ads?

Neither Five Hours nor Prubi shows ads.

### Which is updated more often, Five Hours or Prubi?

Five Hours ships an update every 7 months, and Prubi every 3 days. Most recently, Five Hours was updated on November 8, 2026 and Prubi on November 6, 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.*