# Retinal vs Perspective Pixels

The clearest difference is update cadence: Retinal at fortnightly against Perspective Pixels's every 5 months. On price, ads, 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.

Retinal ships an update fortnightly, Perspective Pixels every 5 months. The most recent releases landed on September 8, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Retinal | Perspective Pixels |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/perspective-pixels/id6748315710/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | — | Free |
| Size | 1 MB | 3 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nico Rohrbach](https://appshunter.io/developer/662717596) | [Ryan Himmelwright](https://appshunter.io/developer/1825158482) |

## What reviewers say

### Retinal

[App page](https://appshunter.io/ios/app/retinal/id1564557619)

**Features:** macOS Compatibility

**In-app purchases:** none


### Perspective Pixels

[App page](https://appshunter.io/ios/app/perspective-pixels/id6748315710)

This tool helps you understand and compare display specifications like PPI, PPD, and FOV. Input your monitor's details to see how they affect your viewing experience and explore UI scaling effects. Save and compare unlimited configurations with a clean, intuitive interface.

**Highlights:** Calculate PPI, PPD, and FOV, Explore UI scaling effects, Save and compare monitor configurations, Switch between metric and imperial units, Intuitive and user-friendly interface

**In-app purchases:** none


## Frequently asked questions

### Is Retinal free?

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

### Is Perspective Pixels free?

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

### Do Retinal or Perspective Pixels have ads?

Neither Retinal nor Perspective Pixels shows ads.

### Which is updated more often, Retinal or Perspective Pixels?

Retinal ships an update fortnightly, and Perspective Pixels every 5 months. Most recently, Retinal was updated on September 8, 2026 and Perspective Pixels on June 1, 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.*