250+ iOS apps curated and reviewed
Out of 250+ ppi calculator apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free was $0.99 | 4.5★ (66) | No | No | Aug 2026 | |
| 2 |  | Free | 3.2★ (6) | No | No | Aug 2026 | |
| 3 |  | Free | 4.3★ (3) | No | No | Jul 2026 | |
| 4 |  | Free | 4.4★ (13) | No | No | Aug 2026 | |
| 5 |  | Free | 4.9★ (409K) | Yes | No | Sep 2026 | |
| 6 |  | Free | 4.4★ (7) | No | No | May 2026 | |
| 7 |  | Free | 4.7★ (61K) | No | No | Sep 2026 | |
| 8 |  | Free | 3.0★ (1) | Yes | No | May 2026 |
Calculate your display's pixel density (PPI) using its dimensions and pixel count. Learn about PPI and DPI definitions, and how to categorize screen resolution.
Easily calculate the Pixels Per Inch (PPI) for any screen, from phones to monitors. Input screen dimensions and diagonal size to get an instant PPI result and determine if it qualifies as a Retina Display. You can also search for device information online and save your calculations.
Calculate display settings like DPI and PPI using only screen resolution and diagonal measurements. This straightforward utility tool provides essential display information.
