PPI Calc vs Retinal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PPI Calc
Calculate pixels per inch (PPI) for any screen, along with aspect ratio and screen measurements. View data in inches or centimeters. Includes presets for standard resolutions and common devices.
- PPI calculation
- Aspect ratio display
- Screen height and width
- Screen area calculation
- Inch and centimeter units
- Standard resolution presets
- Common device presets
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With this handy application you can calculate the PPI (pixels per inch) of all the screens you want. In addition to the PPI you can get information about aspect ratio and the measurements of the screen: * Height * Width * Area All the data are available in either inches or centimeters. To make your life easier there is also a list of standard resolutions and many common devices. Tap the item you want to preset the data without having to write anything.
Retinal
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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.
Screenshots
Verdict
The clearest difference is device support: PPI Calc at 3 against Retinal's 1. PPI Calc also leads on iOS requirement (7.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PPI Calc | Retinal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (13 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 13 — better | — |
| Update frequency | — | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 7.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Fausto Ristagno | Nico Rohrbach |
In-app purchases
PPI Calc
No in-app purchases
Retinal
No in-app purchases
