Comparison

Magnetic Detector, Stud Finder vs 核辐射检测

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

Head to head
About

Magnetic Detector, Stud Finder

This app uses your device's magnetometer to detect magnetic and electromagnetic fields. It helps locate metal objects, hidden wires, pipes, and even wood studs behind walls. Get real-time readings and alerts to explore your surroundings.

Highlights
  • Detects magnetic and EMF fields
  • Locates metal objects, wires, and pipes
  • Finds hidden wood studs behind walls
  • Real-time magnetic field intensity readings (μT & mG)
  • Active detection beep alerts
  • Automatic storage of time and measurements
Features
Read full description

Turn your iPhone into a powerful Magnetic Detector and Metal Detector. Detect nearby magnetic fields, find hidden metal screws and nails, scan walls for magnetic objects, and measure EMF magnetic field activity in real time using your device's built-in magnetometer. Whether you're searching for metal fasteners behind walls, exploring magnetic sources, or measuring magnetic field strength, Magnetic Detector makes it easy to visualize changes in your surroundings. Magnetic Detector is handy for comparing readings around appliances, walls, and everyday objects. When used as a Metal Detector, it can help you spot nearby iron or steel items by showing changes in the magnetic field. FIND HIDDEN METAL OBJECTS Use your iPhone as a magnetic metal detector to help locate ferromagnetic objects such as iron and steel screws, nails, certain pipes, metal fittings, and other magnetic materials. Move your device slowly along walls or plasterboard to detect magnetic disturbances. Metal fasteners may help indicate the location of hidden wall studs. DETECT & MEASURE MAGNETIC FIELDS Transform your device into a real-time EMF magnetic field meter. Monitor magnetic field intensity with an intuitive digital gauge and observe how measurements change as you approach magnetic objects. The app displays magnetic field strength in: - μT (microtesla) - mG (milligauss) Earth's magnetic field is typically 25–65 μT. 1 μT equals 10 mG. POWERFUL DETECTION FEATURES - Real-time magnetic field and EMF magnetic field measurements. - Magnetic metal detection using your device's built-in magnetometer. - Interactive gauge displaying magnetic field intensity. - Audible warning when the magnetic field exceeds the configured threshold. - Automatic recording of measurements and timestamps. - Three-axis magnetic field readings (Bx, By, Bz). - 3D visualization of magnetic field measurements. - Room scanning to explore magnetic hotspots. - Support for microtesla and milligauss measurements. USE YOUR IPHONE AS A STUD FINDER Searching for hidden screws or nails in a wall? Magnetic Detector can help identify nearby ferromagnetic fasteners that may indicate the position of wooden studs or metal structures. IDEAL FOR DIY, EDUCATION & EXPLORATION Magnetic Detector can be useful for: - DIY enthusiasts and handymen exploring walls for magnetic fasteners. - Students conducting physics experiments and school projects. - Teachers demonstrating magnetic field behavior. - Engineers and technology enthusiasts studying magnetic measurements. - Anyone curious about magnetic activity around electronic devices, speakers, magnets, and other objects. HOW DOES IT WORK? The app uses the magnetometer integrated into your iPhone to measure nearby magnetic field strength. Ferromagnetic objects can produce or disturb local magnetic fields. As you move your device closer to these objects, the magnetic field readings may change, helping you identify potential magnetic sources. Tip: Shake your device to help recalibrate the magnetic sensor. Keep your phone away from magnetic accessories that could interfere with measurements. IMPORTANT INFORMATION Magnetic Detector is designed for personal, educational, and entertainment purposes. It is not a replacement for professional metal detectors, stud finders, electrical wire detectors, or safety equipment. Detection is primarily limited to nearby magnetic and ferromagnetic materials. The app cannot directly detect wooden studs, non-magnetic metals such as copper or aluminum, or reliably identify electrical wiring. Always verify wall conditions with appropriate professional tools before drilling. Accuracy depends on your device, distance, and magnetic interference. If you experience any issues or have suggestions, please contact us and include your device model and iOS version. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

核辐射检测

Features
Read full description

核辐射检测是一款反映核辐射水平及查询全国城市实时天气的软件,实时统计每次监测的辐射值,快速查看当前所处位置的所有辐射信息,它是您生活中的必备软件!

Screenshots

Magnetic Detector, Stud Finder4 screens
核辐射检测3 screens

Verdict

The call

The clearest difference is ads: 核辐射检测 at none against Magnetic Detector, Stud Finder's shown. 核辐射检测 also leads on update cadence (every 9 days vs every 2 months) and iOS requirement (13.0 vs 15.6). On price, 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

Both are free to download. Magnetic Detector, Stud Finder sells 4 in-app purchases, starting at $4.99 per 7 days and 核辐射检测 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Magnetic Detector, Stud Finder ships an update every 2 months, 核辐射检测 every 9 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Magnetic Detector, Stud Finder versus 核辐射检测: the parameters behind the verdict, then further details
ParameterMagnetic Detector, Stud Finder核辐射检测
PriceFreeFree
Rating4.6 (444 ratings) — better—
Positive reviews90.2% of reviews—
Number of ratings444 — better—
Update frequencyEvery 2 monthsEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size30 MB28 MB
Age rating4+4+
DeveloperJose Bello薇 吴

Bugs and requests

Magnetic Detector, Stud Finder

Reported bugs

2 issues
  • Readings sometimes inconsistent or stop at certain thresholds
  • Compatibility issues with some devices

Requested features

3 requests
  • Add support for measuring electric fields
  • Improve accuracy and sensitivity
  • Provide more detailed readings and analysis

核辐射检测

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Magnetic Detector, Stud Finder

Subscriptions1
  • Weekly Full Access$4.997 Days
One-time3
  • Remove Ads - Magnetic Detector$2.99
  • Unlock all - Premium & Warning Beep$4.99
  • Lifetime Full Access$12.99
1 purchases

核辐射检测

One-time1
  • 核辐射检测永久会员$2.99

Questions

Is Magnetic Detector, Stud Finder free?
Magnetic Detector, Stud Finder is free to download, with in-app purchases available.
Is 核辐射检测 free?
核辐射检测 is free to download, with in-app purchases available.
Do Magnetic Detector, Stud Finder or 核辐射检测 have ads?
Magnetic Detector, Stud Finder shows ads; 核辐射检测 does not.
Which is updated more often, Magnetic Detector, Stud Finder or 核辐射检测?
Magnetic Detector, Stud Finder ships an update every 2 months, and 核辐射检测 every 9 days. Most recently, Magnetic Detector, Stud Finder was updated on November 2, 2026 and 核辐射检测 on October 30, 2026.

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