Bug Detector Scanner

Contains ads
2.39K reviews
Content rating
Everyone
500K+
Downloads
Content rating
Everyone
Learn more
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About this app

Bug Detector Scanner is a practical privacy inspection tool that helps you check unfamiliar objects and spaces using your phone’s magnetometer together with guided visual inspection.

Use the magnetic scanner to watch changes in the surrounding magnetic field, compare repeated measurements and inspect areas more carefully. The app gives you several ways to view the same magnetometer data, so you are not relying on a single reading or sudden spike.

Whether you are checking a hotel room, bedroom, changing room, restroom, office, vehicle or another private space, Bug Detector Scanner gives you useful tools and simple step-by-step guidance.

MAGNETIC SCANNER:
Measure nearby magnetic field strength using the magnetometer built into your phone.

Choose between:
• Guided comparison scan
• Live signal graph
• Field strength meter
• X, Y and Z sensor readings

GUIDED COMPARISON SCAN:
Magnetic readings can change for many normal reasons, so one high value is not always useful on its own.

The guided scan lets you record a baseline and then measure the same object or area three times. You can compare the average reading, difference, highest value and whether the change appears consistently across your measurements.

This makes it easier to notice repeatable magnetic changes instead of reacting to a single spike.

LIVE SIGNAL GRAPH:
Watch magnetic field changes in real time while moving your phone around an object or area.

The graph makes it easier to see peaks, drops and changes over time. You can also view the current field strength and use sound alerts for elevated readings.

FIELD STRENGTH METER:
For quick checks, use the field strength meter to see the current magnetic reading in µT.

It is useful when comparing different objects or checking whether the reading changes as you move closer or farther away.

SENSOR VALUES:
Want more detail?
View the total magnetic-field strength together with the X, Y and Z values reported by your phone’s magnetometer.

69 GUIDED PRIVACY CHECKS:
Bug Detector Scanner also includes guided visual inspection checklists with 69 inspection points across 7 different environments.

Checklists include:

• Hotel rooms
• Bedrooms
• Changing rooms
• Restrooms
• Vehicles
• Offices
• Other private spaces

PRIVACY FIELD GUIDE:
Not every strong magnetic reading means something suspicious.

The built-in guide explains how to prepare and calibrate your phone, repeat a scan properly, compare readings and recognize common sources of false positives.

The app encourages you to combine magnetometer readings with visual inspection and common sense.

If you are concerned about a possible hidden camera, microphone, tracker or unfamiliar electronic device, magnetic readings may provide an additional clue, but they should not be treated as proof by themselves.

KEY FEATURES:
• Magnetic scanner using your phone’s magnetometer
• Guided comparison measurements
• Live magnetic signal graph
• Field strength meter
• X, Y and Z sensor readings
• Sound alerts
• 69 guided inspection points
• 7 inspection environments
• Saved inspection progress
• Calibration guidance
• False positive information
• Clean and easy to use interface

SCAN SMARTER. INSPECT BETTER.

Bug Detector Scanner is designed to make privacy checks more structured and easier to understand.

Take your time, compare readings, repeat measurements and check ordinary sources before deciding whether something needs a closer look.

IMPORTANT:
Bug Detector Scanner relies on the magnetometer sensor available in your phone. Readings and accuracy can vary between devices and may be affected by nearby electronics, magnets, wiring, metal objects and other environmental factors.

Magnetic readings provide supporting information only. They do not identify or confirm the presence of a hidden camera, microphone, tracker, bug or other surveillance device.

Always check ordinary sources first and only inspect places or objects where you have permission to do so.
Bug detector scanner with magnetometer, live graph and guided privacy checks
Updated on
Aug 27, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

2.38K reviews
A Google user
June 24, 2019
Ads make it unusable. Freezes tripping over itself trying to put another ad up where you just closed another. It's obvious what their objective is, not to provide a quality app. Believe me, no one rated this anywhere close to 5 stars which means they are stuffing the numbers, lying & trying to fool you out of a few more clicks. Shame on you. Don't download, you'll be sorry!
215 people found this review helpful
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None of Your business
September 17, 2020
Like it says it uses the magnetometer in your device, I am guessing to detect electro magnetic fields that are created by radio waves of any type, producing very inaccurate results and in most cases just plain wrong. The developer is obviously a shady character being that almost all reviews above 1 star are fake. I will not be having any of this developers software on any of my devices again.
158 people found this review helpful
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Jackie L Samm (Baby Jackie)
February 20, 2023
I'm so very shocked that there's not more ratings reviews whatever you call them I've never reviewed a app in my life .I even put it to the test e as soon as it went off the something. That "something " waa EXACTLY whyI I saight after the app in first place.the 3 other phones w "this" app aggred ! After being swept later disciples Dead on the other $300 device picked up the exact same thing even down to the numbers.. good job developer of this one !!¡!
10 people found this review helpful
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What’s new

A major Bug Detector Scanner update is here!
• All new modern privacy focused interface
• New Guided Comparison Scan for repeatable magnetic checks
• New live magnetic signal graph
• Improved field strength meter and sensor readings
• 69 guided privacy inspection points
• New Privacy Field Guide with calibration and false positive tips
• Improved scanning experience, performance and stability
Enjoy a cleaner, smarter and more reliable privacy inspection experience.