BLE vs Metal Detector 3D Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLE
This utility tool assists developers in creating and maintaining Bluetooth Low Energy products. It enables connection establishment, monitoring, and configuration for RF testing of BLE devices. Log files can be shared for further analysis.
- Connect to BLE devices
- Monitor connections
- Configure connection parameters
- Start/stop test mode
- Share log files
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This tool is intended to support developers in their work to develop and maintain Bluetooth Low Energy products. BleRf Test can measure the quality of an RF link in both direction for any product implementing the BLE service for RF test. Features: - establish a connection to a BLE device - monitor said connection - share log files with other smartphone apps This app is only intended to support the development of BLE devices.
Metal Detector 3D Plus
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Metal Detector enables you to detect metal objects using your iOS devices. You can preview the magnetic field level through a graph and a 3D directional display. Metal Detector measures the magnetic field using the device’s built-in magnetic sensor. The natural magnetic field level (EMF) typically ranges from 25 to 65 µT (microtesla), or 250 mG (milligauss). 1 µT = 10 mG. Any reading above this range may indicate the presence of metal or a change in electromagnetic activity in the area. The magnetic field level increases when metal (such as steel or iron) is near the phone. Magnetic field levels will fluctuate as you move around. You can use this app to find metal objects like electrical wires in walls or iron pipes underground. Metal Detector is most effective at detecting ferromagnetic materials (e.g., iron) and cannot detect non-ferromagnetic materials such as wood, glass, plastic, paper, copper, or aluminum. Features: • Displays device orientation in 3D space using a compass. • 3D magnet icon enlarges as magnetic field strength increases. • Shows maximum detected magnetic field level. • Graph displays magnetic field level over time. • Screenshot functionality with saving to the camera roll. • 3D magnet orientation defaults to magnetic north, like a traditional compass. • Option to reset the maximum magnetic field value. • Sound notification when the maximum magnetic field level is reached. • Option to enable or disable sound notifications. Usage: • Detect metal objects such as electrical wires in walls or buried iron pipes. • Identify objects that may or may not be metal. • Monitor magnetic field level changes in specific areas (e.g., when approaching large metal structures). • Some users believe it may detect paranormal activity (use at your own discretion). • And much more—limited only by your imagination! You can also record your screen for reference: • Go to Settings > Control Center > Customize Controls, then tap the + next to Screen Recording. • Open Control Center. • Tap the Screen Recording icon (circle with a dot inside) to start recording. • The recording begins after a 3-second countdown. • To stop, tap the red status bar or red icon. • The screen recording will be saved in Photos for later viewing. Note: Magnetic field readings may be affected by nearby electronic equipment (TVs, computers, microwaves) due to electromagnetic interference. Thank you for your support! Visit nitrio.com for more great apps for your iOS devices.
Screenshots
Verdict
The clearest difference is price: BLE at Free against Metal Detector 3D Plus's $2.99. Metal Detector 3D Plus's advantage is iOS requirement (13.0 vs 15.0). On update cadence, 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
BLE is free to download; Metal Detector 3D Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BLE ships an update every 64 months, Metal Detector 3D Plus every 38 months. The most recent releases landed on October 20, 2026 and October 27, 2026 respectively.
| Parameter | BLE | Metal Detector 3D Plus |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 3.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 64 months | Every 38 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 80 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Arendi AG | Heng Jia Liang |
In-app purchases
BLE
No in-app purchases
Metal Detector 3D Plus
No in-app purchases
Questions
Is BLE free?
Is Metal Detector 3D Plus free?
Do BLE or Metal Detector 3D Plus have ads?
Which is updated more often, BLE or Metal Detector 3D Plus?
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