# Retinal — Check retina capability

> Check retina capability (iPhone/iPad app by Nico Rohrbach.)

- Source: https://appshunter.io/ios/app/retinal/id1564557619 (this page in markdown: same URL + `.md`)
- Developer: [Nico Rohrbach](https://appshunter.io/developer/662717596)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: German (Germany)
- Released: 2021-05-02
- Data updated: 2026-05-18
- User reviews in markdown: https://appshunter.io/ios/app/retinal/id1564557619/reviews.md

## What is Retinal?

Not all displays for Mac are well suited to display the user interface in a non-scaled resolution. A pixel density of about 110 pixels per inch (PPI) for non-Retina, and about 220 PPI for Retina is comfortable for most people.

Use Retinal to work out the pixel density of any display.


## Version history (last 4 releases)

### 1.2 — 2025-09-14

– Updated for iOS 26

### 1.1 — 2025-09-02

– Improved graphical PPI meter.
– Added a label to clearly categorize the current calculated PPI.
– Focus ring on the active field.
– The reset button sets the focus back to the first field.
– Improved handling when not all fields have been filled in yet.
– Added German localization.

### 1.0.1 — 2021-05-16

– Fixed a small label misplacement in the interface

### 1.0 — 2021-05-02

No release notes.

## Apps similar to Retinal

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [YOTTA DPI APP](https://appshunter.io/ios/app/yotta-dpi-app/id6443931737) | — | Free | Utilities |
| [DTrol](https://appshunter.io/ios/app/dtrol/id1296670853) | 5.0 (1) | Free | Utilities |
| [WiPad](https://appshunter.io/ios/app/wipad/id1634755286) | 5.0 (1) | Free | Utilities |
| [DPI610E](https://appshunter.io/ios/app/dpi610e/id1610317737) | — | Free | Utilities |
| [Lensit](https://appshunter.io/ios/app/lensit/id1468948972) | — | Free | Utilities |
| [Megapixel Calculator](https://appshunter.io/ios/app/megapixel-calculator/id1452649309) | 5.0 (2) | Free | Utilities |

## More apps by Nico Rohrbach

- [Deciding](https://appshunter.io/ios/app/deciding/id943823836)
- [Pickchar](https://appshunter.io/ios/app/pickchar/id1565657543)
- [Passsatz](https://appshunter.io/ios/app/passsatz/id6698877095)
- [Babuu](https://appshunter.io/ios/app/babuu/id6751436083)

All apps by Nico Rohrbach: https://appshunter.io/developer/662717596

## Related topics

[ppi guru](https://appshunter.io/ios/topics/ppi-guru)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-18.*