Comparison

Megapixel Calculator vs Pixel Density Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Megapixel Calculator

This utility helps you understand screen and image resolutions. Calculate megapixels from dimensions or find dimensions from megapixels. It also includes a DPI calculator for screens.

Highlights
  • Calculate megapixels from dimensions
  • Calculate dimensions from megapixels
  • Determine aspect ratio
  • DPI calculator
  • Supports various resolutions
Features
Read full description

Megapixel Calculator is very useful and informative app for understanding different resolutions. Just type number of megapixels and you will see all possible variations of screen, photo and camera resolutions. Or even more - type the resolution of your photo, screen or camera, and the app will tell you the aspect ratio and number of megapixels. Now app includes DPI calculator. Just input screen resolution and size in inches, and the DPI of the screen will be shown. Megapixel Calculator now includes: - Resolutions Calculator - Megapixel Calculator - DPI Calculator

About

Pixel Density Calculator

Calculate the pixels per inch (PPI) or dots per inch (DPI) for any display. This tool helps determine screen resolution based on dimensions and pixel count, also calculating screen size, aspect ratio, and megapixels.

Highlights
  • Calculate Pixels Per Inch (PPI)
  • Calculate Dots Per Inch (DPI)
  • Determine screen size
  • Calculate aspect ratio
  • Megapixel count calculation
  • Shape preview
Features
Read full description

Pixel Density Calculator are used for calculating pixels per inch (PPI) or dots per inch (DPI) of any display based on its dimensions and the pixel count. PPI is a measure of pixel density or resolution of a monitors, smartphones, tablets, smart watches, computer screen, notebooks, television screen or other display device. Pixels per inch indicates how many pixels are in a 1 inch line on a display. Also calculated are screen size, screen width, screen height, aspect ratio and total number of megapixels. Calculation including shape preview. The formula to calculate PPI from diagonal: PPI = √(w² + h²)/d where: d – Diagonal screen size in inches. w – Number of pixels along the horizontal line. h – Number of pixels along the vertical line. Calculate the number of pixels that fit on the diagonal: d = √(w² + h²) where: w - Number of pixels along the horizontal line. h - Number of pixels along the vertical line. Then, calculate the PPI as the ratio between the number of pixels along the diagonal and the diagonal screen size: PPI = d/di where di is the diagonal screen size in inches. Pixels per Inch Quality value 120 PPI - Low 120-160 PPI - Medium 160-213 PPI - Medium High 213-240 PPI - High 240-320 PPI - eXtra High 320-480 PPI - eXtra x2 High 480-640 PPI - eXtra x3 High What is pixel density: Pixels per inch (PPI) are a measurement of the pixel density (resolution) of devices in various contexts: typically computer LCD or OLED displays, image scanners, and digital camera image sensors. The PPI of a computer display is related to the size of the display in inches and the total number of pixels in the horizontal and vertical directions. The PPI and DPI definitions are essentially equivalent. Dots per inch, or DPI, is comparable to pixels per inch. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

Screenshots

Megapixel Calculator4 screens
Pixel Density Calculator4 screens

Verdict

The call

The clearest difference is price: Megapixel Calculator at Free against Pixel Density Calculator's $2.99. Megapixel Calculator also leads on update cadence (every 10 months vs every 38 months). Pixel Density Calculator's advantage is ads (none vs shown) and iOS requirement (13 vs 16.0). On rating, ratings volume, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Megapixel Calculator is free to download; Pixel Density Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Megapixel Calculator against 5.0 for Pixel Density Calculator. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Megapixel Calculator ships an update every 10 months, Pixel Density Calculator every 38 months. The most recent releases landed on October 22, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 4 level
Megapixel Calculator versus Pixel Density Calculator: the parameters behind the verdict, then further details
ParameterMegapixel CalculatorPixel Density Calculator
PriceFree — better$2.99
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 10 months — betterEvery 38 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013 — better
Further details — not scored
Size4 MB3 MB
Age rating4+4+
DeveloperTihomir RadevHeng Jia Liang

Customer experience

Megapixel Calculator

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Pixel Density Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Megapixel Calculator

No in-app purchases

None

Pixel Density Calculator

No in-app purchases

Questions

Is Megapixel Calculator free?
Megapixel Calculator is free to download, with no in-app purchases.
Is Pixel Density Calculator free?
Pixel Density Calculator costs $2.99, with no in-app purchases.
Which has better reviews, Megapixel Calculator or Pixel Density Calculator?
Megapixel Calculator and Pixel Density Calculator are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Megapixel Calculator or Pixel Density Calculator have ads?
Megapixel Calculator shows ads; Pixel Density Calculator does not.
Which is updated more often, Megapixel Calculator or Pixel Density Calculator?
Megapixel Calculator ships an update every 10 months, and Pixel Density Calculator every 38 months. Most recently, Megapixel Calculator was updated on October 22, 2026 and Pixel Density Calculator on October 12, 2026.

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