# Focus Interval vs Proof

The clearest difference is in-app purchases: Focus Interval at none against Proof's 2. Focus Interval also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). Proof's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. Proof sells 2 in-app purchases, starting at $2.99 per month. Focus Interval asks for nothing beyond the download.

## The numbers

| Metric | Focus Interval | Proof |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 2 days |
| Size | 24 MB | 18 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BroSister](https://appshunter.io/developer/1862659942) | [hyeongsik cho](https://appshunter.io/developer/6786529134) |

## What reviewers say

### Focus Interval

[App page](https://appshunter.io/ios/app/focus-interval-pomodoro-timer/id6760988252)

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

**In-app purchases:** none


### Proof

[App page](https://appshunter.io/ios/app/proof/id6786529132)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proof Pro 월간 구독 | $2.99 | per month |
| Proof Pro 월간 구독 | $19.99 | per year |


## Frequently asked questions

### Is Focus Interval free?

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

### Is Proof free?

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

### Do Focus Interval or Proof have ads?

Focus Interval shows ads; Proof 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.*