Comparison

Bluetooth Sleuth vs Metal Detector 3D Plus

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

Head to head
About

Bluetooth Sleuth

This utility allows users to deeply interact with their device's Bluetooth capabilities. It supports scanning for peripherals, advertising custom services, broadcasting and ranging iBeacons, and searching a comprehensive Bluetooth database.

Highlights
  • Configure custom Bluetooth advertisements
  • Scan for specific or all advertising devices
  • Connect to and browse peripheral services
  • Broadcast and range iBeacons
  • Search Bluetooth assigned numbers database
  • Monitor RSSI values with graphing
Features
Read full description

Bluetooth Sleuth is meant to be a well rounded app for interacting with your iOS or supported macOS device's Bluetooth functionality. This includes advertising and scanning for peripherals, as well as broadcasting, monitoring, and ranging iBeacons. The following covers some of the features included in Bluetooth Sleuth: [ADVERTISE] - Ability to configure an advertisement with your device - Create custom services, with their own characteristics and descriptors to advertise - Automatically saves custom services for later reuse [SCAN] - Ability to scan for all advertising devices within range - Ability to scan for specific advertisements that contain the provided CoreBluetooth UUID - Displays all peripherals, sorted by RSSI, with the ability to connect to devices that are open to connections - Browse a peripheral's services, characteristics, and descriptors - Monitor recent peripheral RSSI values with included graphing tools - Ability to automatically reconnect to a previously connected peripheral - Filter results to require names, ability to connect or minimum RSSI value [SEARCH] - Search through over 5,000 records in the Bluetooth database of assigned numbers for companies, services, characteristics and other related values [BROADCAST] - Configure your device to act as an iBeacon by providing it with a UUID, and optional major and minor values [RANGE] - Observe for the presence of any iBeacons broadcasting with the values you provide - See device information for any iBeacons located - Monitor recent iBeacon RSSI values with included graphing tools [MONITOR] - Observe region updates for any iBeacons broadcasting with the values you provide

About

Metal Detector 3D Plus

Features
Read full description

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

Bluetooth Sleuth4 screens
Metal Detector 3D Plus4 screens

Verdict

The call

The clearest difference is update cadence: Bluetooth Sleuth at every 2 months against Metal Detector 3D Plus's every 38 months. Bluetooth Sleuth also leads on price ($0.99 vs $2.99). Metal Detector 3D Plus's advantage is iOS requirement (13.0 vs 16.0). On 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

CostPrice · In-app purchases · Ads · Monetization

Bluetooth Sleuth costs $0.99 and Metal Detector 3D Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Bluetooth Sleuth ships an update every 2 months, Metal Detector 3D Plus every 38 months. The most recent releases landed on October 16, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 6 level
Bluetooth Sleuth versus Metal Detector 3D Plus: the parameters behind the verdict, then further details
ParameterBluetooth SleuthMetal Detector 3D Plus
Price$0.99 — better$2.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 months — betterEvery 38 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size3 MB2 MB
Age rating4+4+
DeveloperSean McNeilHeng Jia Liang

In-app purchases

None

Bluetooth Sleuth

No in-app purchases

None

Metal Detector 3D Plus

No in-app purchases

Questions

Is Bluetooth Sleuth free?
Bluetooth Sleuth costs $0.99, with no in-app purchases.
Is Metal Detector 3D Plus free?
Metal Detector 3D Plus costs $2.99, with no in-app purchases.
Do Bluetooth Sleuth or Metal Detector 3D Plus have ads?
Neither Bluetooth Sleuth nor Metal Detector 3D Plus shows ads.
Which is updated more often, Bluetooth Sleuth or Metal Detector 3D Plus?
Bluetooth Sleuth ships an update every 2 months, and Metal Detector 3D Plus every 38 months. Most recently, Bluetooth Sleuth was updated on October 16, 2026 and Metal Detector 3D Plus on October 27, 2026.

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