Sensor Node vs Metal Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sensor Node
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The Sensor Node App allows device owners and administrators for corporate accounts to access their Sensor Node device data and manage their devices. Devices can be added to the account, edited and deleted. To add a new device, you scan a QR code, and give it a name. It's as simple as that! The Sensor Node Device and the App are both subject to continuous improvement. Monkeytronics welcomes feedback to help improve users' experience.
Metal Detector
This utility app uses your iPhone's sensors to detect metals, studs, and electromagnetic fields. It can also identify lens reflections and analyze WiFi networks for potential surveillance devices, offering a comprehensive scanning tool for security and home improvement.
- Metal and stud detection
- Lens reflection scanner
- EMF meter
- WiFi analyzer
- Easy calibration
- Lightweight and portable
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Metal Detector: Stud Finder turns your iPhone's built-in sensors into a pocket toolkit for finding hidden metal, magnetic fields, spy cameras and unknown devices. SCAN FOR METAL • Live magnetic field reading in µT with a clear gauge and a real-time graph • Sensitivity presets and one-tap calibration • Sound and haptic feedback that gets stronger as you get closer • Save every scan to your history HIDDEN CAMERA DETECTOR • Sweep a room with your camera to spot lens reflections • On-device detection, haptic alerts and a live HUD • Step-by-step "What should I do?" guide if something is found WI-FI & NETWORK CHECK • See the devices connected to your network • Spot unknown or suspicious devices BLUETOOTH SCANNER • Find nearby Bluetooth devices and see their signal strength ROOM SWEEP • A guided checklist that combines the camera, Wi-Fi and Bluetooth checks into one report STUD FINDER & WIRE LOCATOR • Find metal studs, nails, screws and wiring behind walls using the magnetic field • Move the phone slowly along the wall and watch the graph SIGNAL FINDER • Follow a signal with a direction and strength meter LEVEL & COMPASS • Level and compass in one screen EMF / ELECTROMAGNETIC DETECTOR • Measure the electromagnetic field around you with a live chart, calibration and reset MAIL SECURITY CHECK • Enter an email domain to check its public email security settings (SPF, DMARC and more) SCAN HISTORY & EXPORT • Review past scans and export them as PDF or CSV • Optional Face ID lock for your history MADE FOR EVERYDAY USE • Light and dark mode, with an Appearance setting (Auto, Light or Dark) • Home Screen quick actions and Siri Shortcuts • Available in English, Chinese (Simplified), Dutch, French, German, Italian, Japanese, Korean, Portuguese (Brazil) and Spanish (Latin America) IMPORTANT This app uses your iPhone's magnetometer and camera. It detects metal and magnetic fields, not wood or plastic, and it cannot see through walls. Results are indications, not guarantees. It is not a replacement for professional detection equipment or safety checks. SUBSCRIPTION & PRICING Metal Detector: Stud Finder is free to download with limited free scans. Unlock unlimited scans, all tools and an ad-free experience with: • Payment is charged to your Apple ID account at confirmation of purchase. • Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. • Your account is charged for renewal within 24 hours before the end of the current period, at the price of the chosen plan. • You can manage or cancel your subscription anytime in Settings > [your name] > Subscriptions. • Any unused portion of a free trial period, if offered, is forfeited when you purchase a subscription. • Prices may vary by country and are shown in your local currency in the app. Privacy Policy: https://sites.google.com/view/metal-detector-finder/privacy-policy Terms of Use: https://sites.google.com/view/metal-detector-finder/terms-conditions Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Sensor Node at none against Metal Detector's 3. Sensor Node also leads on update cadence (every 2 months vs every 5 months) and iOS requirement (11.0 vs 15.6). On price, ads 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
Both are free to download. Metal Detector sells 3 in-app purchases, starting at $3.99 per 7 days. Sensor Node asks for nothing beyond the download.
Sensor Node ships an update every 2 months, Metal Detector every 5 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.
| Parameter | Sensor Node | Metal Detector |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (8 ratings) — better |
| Number of ratings | — | 8 — better |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 42 MB | 123 MB |
| Age rating | 4+ | 4+ |
| Developer | Monkeytronics Ltd | Reena Williams |
In-app purchases
Sensor Node
No in-app purchases
Metal Detector
- Weekly Subscription$3.997 Days
- Weekly Subscription3 Days trial$5.997 Days
- Yearly Subscriptions$39.991 Year
Questions
Is Sensor Node free?
Is Metal Detector free?
Do Sensor Node or Metal Detector have ads?
Which is updated more often, Sensor Node or Metal Detector?
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