# When Can I Drive? vs Permille

The clearest difference is ads: Permille at none against When Can I Drive?'s shown. Permille also leads on iOS requirement (16.0 vs 18.6). On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | When Can I Drive? | Permille |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 18 MB | 10 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Thomas Portlock](https://appshunter.io/developer/1890094275) | [Johann Brockstedt](https://appshunter.io/developer/6784398291) |

## What reviewers say

### When Can I Drive?

[App page](https://appshunter.io/ios/app/when-can-i-drive/id6774895449)

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

**In-app purchases:** none


### Permille

[App page](https://appshunter.io/ios/app/permille/id6787531362)

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

**In-app purchases:** none


## Frequently asked questions

### Is When Can I Drive? free?

When Can I Drive? is free to download, with no in-app purchases.

### Is Permille free?

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

### Do When Can I Drive? or Permille have ads?

When Can I Drive? shows ads; Permille does not.

### Which is updated more often, When Can I Drive? or Permille?

When Can I Drive? ships an update every 2 weeks, and Permille every 2 weeks. Most recently, When Can I Drive? was updated on October 14, 2026 and Permille on October 13, 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.*