# PPI Guru - Calc PPI Easily — Check PPI of your devices

> Utility to calculate display's Pixels Per Inch (PPI) for various devices. (iPhone/iPad app by 基伟 徐.)

- Source: https://appshunter.io/ios/app/ppi-guru-calc-ppi-easily/id1514324923 (this page in markdown: same URL + `.md`)
- Developer: [基伟 徐](https://appshunter.io/developer/391905315)
- Category: Utilities, Productivity
- Price: Free
- Rating: 3.20/5 from 6 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 32 MB
- Languages: American English
- Released: 2020-05-20
- Data updated: 2026-08-17
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ppi-guru-calc-ppi-easily/id1514324923/reviews.md

## What is PPI Guru?

PPI Guru is utility to calculate display's PPI (Pixels Per Inch) of Phones, Pads or Laptops, even Monitors.
For calculating PPI of specified display, just input screen width, height in pixels and diagonal size of the screen in inches, the PPI will be auto calculated and show in result. And it will indicate that display is or not a Retina Display. (Retina Display means (size greater or equal than 10″ and PPI greater or equal than 200) or (size less than 10″ and PPI greater or equal than 300)).

Key Features:
• Calculating PPI automatic
• Search device information from internet
• Retina Display indicator
• Save device information

For public sale devices, you can just enter device name, then press Search Info, PPI Guru will search that name with Google, then grab display's information of that device.
PS. Search Info may not return accurate information, and it depends on accessibility to Google.
Device's information could be saved in local database for further reference.

## Key features

- Automatic PPI calculation
- Search device information online
- Retina Display indicator
- Save device information locally
- Supports phones, tablets, laptops, and monitors

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/ppi-guru-calc-ppi-easily/id1514324923/reviews.md

### 4/5 — Aura

*2026-07-23*

Muito bommm pra ff to dando só lata

### 5/5 — So caspa

*2026-07-06*

É mt bom para dar caspa

### 2/5 — Mais ou menos

*2026-06-28*

Não gostei muito

## Frequently asked questions about PPI Guru

### How do I calculate PPI with PPI Guru?

To calculate PPI with PPI Guru, simply input the screen's width and height in pixels, along with the diagonal screen size in inches. The app will automatically compute and display the PPI.

### Does PPI Guru identify Retina Displays?

Yes, PPI Guru includes a Retina Display indicator. It determines if a display is Retina based on specific size and PPI thresholds, as defined in the app's logic.

### Can PPI Guru find device information automatically?

PPI Guru can search for device information from the internet. By entering a device name, it attempts to find display specifications via Google, though accuracy depends on search results.

### Can I save device information in PPI Guru?

Yes, device information calculated or searched for within PPI Guru can be saved in a local database for future reference and quick access.

### What devices does PPI Guru support?

PPI Guru is designed to calculate the PPI for various displays, including phones, tablets, laptops, and monitors.

### Is PPI Guru free to use?

Yes, PPI Guru is available for free. There are no costs associated with downloading or using its core PPI calculation features.

### How often is PPI Guru updated?

PPI Guru was last updated on March 16, 2021, with version 1.1. Future updates may be released to improve functionality or compatibility.

### What is the age rating for PPI Guru?

PPI Guru has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

## Version history (last 2 releases)

### 1.1 — 2021-03-16

- Add OLED equivalent PPI result

### 1.0 — 2020-05-20

No release notes.

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## More apps by 基伟 徐

- [Power JSON Editor Mobile](https://appshunter.io/ios/app/power-json-editor-mobile/id1557433043)
- [MermaidEditor](https://appshunter.io/ios/app/mermaideditor/id1581312955)

All apps by 基伟 徐: https://appshunter.io/developer/391905315

## Related topics

[ppi guru](https://appshunter.io/ios/topics/ppi-guru) · [ppi](https://appshunter.io/ios/topics/ppi) · [ppi calc](https://appshunter.io/ios/topics/ppi-calc) · [ppi calculator](https://appshunter.io/ios/topics/ppi-calculator) · [kaplan ppi](https://appshunter.io/ios/topics/kaplan-ppi) · [resolution changer](https://appshunter.io/ios/topics/resolution-changer) · [ppl calc](https://appshunter.io/ios/topics/ppl-calc) · [dpi](https://appshunter.io/ios/topics/dpi) · [dpi calculator](https://appshunter.io/ios/topics/dpi-calculator) · [my dpi](https://appshunter.io/ios/topics/my-dpi) · [ppi2pass](https://appshunter.io/ios/topics/ppi2pass)

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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 2026-08-17.*