Megapixels Resolution Calc vs Magnetometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Megapixels Resolution Calc
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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.
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.
- Real-time EMF detection
- Historical trend charts
- Customizable alerts
- Data export
- Multiple units support
- Adjustable sampling rates
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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
Verdict
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
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.
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.
| Parameter | Megapixels Resolution Calc | Magnetometer |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 38 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13 | 13.0 |
| Further details — not scored | ||
| Size | 1 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Heng Jia Liang | SootheTrail Solutions LLC |
In-app purchases
Megapixels Resolution Calc
No in-app purchases
Magnetometer
No in-app purchases
Questions
Is Megapixels Resolution Calc free?
Is Magnetometer free?
Do Megapixels Resolution Calc or Magnetometer have ads?
Which is updated more often, Megapixels Resolution Calc or Magnetometer?
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