Comparison

Megapixels Resolution Calc vs Magnetometer

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

Head to head
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.

About

Magnetometer

Transform your device into a precise electromagnetic field detector. Ideal for electrical safety checks, scientific exploration, and environmental monitoring with real-time readings and historical data.

Highlights
  • Real-time EMF detection
  • Historical trend charts
  • Customizable alerts
  • Data export
  • Multiple units support
  • Adjustable sampling rates
Read full description

Magnetometer turns your device into a precise electromagnetic field (EMF) detector using the built-in magnetometer sensor. Perfect for electrical safety checks, scientific exploration, and environmental monitoring. ONE-TIME PURCHASE - NO SUBSCRIPTION FEES, NO IN-APP PURCHASES, NO ADS Professional Features: • Real-time EMF detection with live updates • Beautiful circular gauge with color-coded intensity levels • Historical trend charts for pattern analysis • Customizable alert thresholds and notifications • Data export for further analysis • Multiple units support (µT and Gauss) • Adjustable sampling rates and smoothing Key Applications: • Electrical safety inspections • Scientific research and education • Environmental EMF monitoring • Electronics troubleshooting • Educational demonstrations Advanced Tools: • Save and review measurement sessions • Export data in standard formats • Customizable sensitivity settings • Professional-grade calibration • Clean, intuitive interface designed for both beginners and experts The app provides accurate readings using your device's built-in magnetometer, displaying measurements in both microtesla (µT) and Gauss units. The intuitive interface makes it easy to monitor electromagnetic fields in your environment. Pay once, own forever. No hidden costs, no subscriptions, no advertisements. Full functionality included with your purchase. Note: Accuracy depends on your device's sensor capabilities. This app is designed for educational and monitoring purposes. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Megapixels Resolution Calc4 screens
Magnetometer4 screens

Verdict

The call

The clearest difference is update cadence: Magnetometer at weekly against Megapixels Resolution Calc's every 38 months. Magnetometer also leads on price ($1.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement 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

Megapixels Resolution Calc costs $2.99 and Magnetometer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Megapixels Resolution Calc ships an update every 38 months, Magnetometer weekly. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 7 level
Megapixels Resolution Calc versus Magnetometer: the parameters behind the verdict, then further details
ParameterMegapixels Resolution CalcMagnetometer
Price$2.99$1.99 — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 38 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS1313.0
Further details — not scored
Size1 MB23 MB
Age rating4+4+
DeveloperHeng Jia LiangSootheTrail Solutions LLC

In-app purchases

None

Megapixels Resolution Calc

No in-app purchases

None

Magnetometer

No in-app purchases

Questions

Is Megapixels Resolution Calc free?
Megapixels Resolution Calc costs $2.99, with no in-app purchases.
Is Magnetometer free?
Magnetometer costs $1.99, with no in-app purchases.
Do Megapixels Resolution Calc or Magnetometer have ads?
Neither Megapixels Resolution Calc nor Magnetometer shows ads.
Which is updated more often, Megapixels Resolution Calc or Magnetometer?
Megapixels Resolution Calc ships an update every 38 months, and Magnetometer weekly. Most recently, Megapixels Resolution Calc was updated on October 9, 2026 and Magnetometer on October 1, 2026.

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