Comparison

Qalculator vs Megapixels Resolution Calc

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

Head to head
About

Qalculator

This app provides specialized calculation tools for media professionals in film, TV, theatre, and events. It offers utilities for lighting, projection, cameras, audio, and more, simplifying complex industry tasks.

Highlights
  • Lighting beam calculations
  • Projection tools
  • Camera distance and focal length calculations
  • Audio delay and phase offset calculations
  • Display size and bandwidth calculations
  • Tap BPM and DIP switch utilities
Features
Read full description

Qalculator is a convenient tool for media professionals. Qalculator offers a variety of different calculation tools and utilities all of which are made for tasks often performed within the Film-/TV-, Theatre- and Event Industry. This includes: - Lighting Beam Calculation - Projection Tools - Camera Tools - Audio Tools - Tap BPM - Display Size - DIP Switches - Bandwidth Calculation - Frames To Time This app is designed for professionals such as Sound Engineers, Audio Technicians, Lighting Designers, Lighting Technicians, Lighting Operators, Video Engineers, Video Technicians, Camera Men, Camera Technicians and many more. How big will the projected image be if I use a lens factor of 1,5:1 and have my projector at 32' 5" distance from the screen? Qalculator will help! Want to know which focal length you need to get a close up shot? Qalculator assists you. Ever wanted to know how wide a 103" Screen is? Qalculator delivers the solution at your fingertip. Feedback and feature requests are very welcome! Qalculator does: - Lighting beam diameter calculation - Lighting beam object distance calculation - Video projector image size calculation - Video projection lens factor for given image size and projection distance - Video projection distance for given image size and lens factor - Video projection approximate brightness calculation (lux/fc) - Camera distance for given focal length and field of view - Camera focal length for given distance and field of view - Camera field of view for given object distance and focal length - Camera chip size selector for a variety of different chip sizes - Audio delay time for given distance with respect to temperature - Audio wavelengths and travel times for given frequency with respect to temperature - Audio find phase offset and delay for instance for bass speaker arrays - Display Size calculates the complete dimensions for diagonal screen sizes - Tap BPM tap to calculate the average beats per minute - DIP Switches for DMX addressing of DIP switch based devices - DIP Switch offset to step through the DMX address fixture per fixture - Transfer time calculation for a given file size and bandwidth … and more.

About

Megapixels Resolution Calc

Features
Read full description

How many pixels in a 12 megapixels image? How does that compare to difference aspect ratio? What is the resolution of Digital Cinema with 21:9 aspect ratio? How many megapixels by giving X width and Y height by image? How about the aspect ratio? The answer is here! This is a megapixel-resolution calculator, a tool to calculate and convert the graphical resolution base on 4 different aspect ratios 4:3 (SD), 16:9 (HD/fHD/4K), 21:9 (cinema) and 1:1. This tool also calculates and convert graphical resolution to megapixels. The output will include 4 different aspect ratios 4:3 (SD), 16:9 (HD/fHD/4K), 21:9 (cinema) and 1:1 if the ratio match one of these. Preview box will give you an impression for resolution input. 21:9, 16:9 and 4:3 is the ratio of x:y or width:height of the image sensor or output image/video format. Older digital cameras/camcorders aspect ratio is usually 4:3 (SD). However newer digital cameras/camcorders aspect ratio is 16:9 (HD/fHD/4K). Video cameras such as camcorders can be either 4:3 (SD) or 16:9 (HD/fHD/4K). Some camcorders (video and digital) can do both 4:3 (SD) and 16:9 (HD/fHD/4K). Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

Screenshots

Qalculator4 screens
Megapixels Resolution Calc4 screens

Verdict

The call

The clearest difference is update cadence: Qalculator at every 4 months against Megapixels Resolution Calc's every 38 months. Megapixels Resolution Calc's advantage is iOS requirement (13 vs 15.6). On price, ads, 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

Qalculator costs $2.99 and Megapixels Resolution Calc $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Qalculator ships an update every 4 months, Megapixels Resolution Calc every 38 months. The most recent releases landed on October 8, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level
Qalculator versus Megapixels Resolution Calc: the parameters behind the verdict, then further details
ParameterQalculatorMegapixels Resolution Calc
Price$2.99$2.99
Rating5.0 (5 ratings) — better—
Positive reviews90.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 4 months — betterEvery 38 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613 — better
Further details — not scored
Size2 MB1 MB
Age rating4+4+
DeveloperQConcept GmbH & Co. KGHeng Jia Liang

In-app purchases

None

Qalculator

No in-app purchases

None

Megapixels Resolution Calc

No in-app purchases

Questions

Is Qalculator free?
Qalculator costs $2.99, with no in-app purchases.
Is Megapixels Resolution Calc free?
Megapixels Resolution Calc costs $2.99, with no in-app purchases.
Do Qalculator or Megapixels Resolution Calc have ads?
Neither Qalculator nor Megapixels Resolution Calc shows ads.
Which is updated more often, Qalculator or Megapixels Resolution Calc?
Qalculator ships an update every 4 months, and Megapixels Resolution Calc every 38 months. Most recently, Qalculator was updated on October 8, 2026 and Megapixels Resolution Calc on October 27, 2026.

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