Detector:Find Lost/Spy Device

Detector:Find Lost/Spy Device

By 长金 胡

Detector:Find Lost/Spy Device is a privacy utility for identifying hidden surveillance equipment on iOS.

The App DNA

What makes this app unique?

It replaces the need for expensive, specialized hardware by using standard smartphone sensors to provide immediate peace of mind in unfamiliar environments.

For Travelers and individuals concerned about privacy in hotels or unfamiliar environments.

What does it look like?

Key features

Multi-Faceted Detectionedge

Scans for hidden devices using Bluetooth, magnetic field, infrared, and Wi-Fi sensors.

Real-Time Alertsstandard

Triggers immediate notifications upon detection of suspicious signals.

Customizable Scanning Parametersstandard

Allows users to adjust sensitivity based on environment needs.

How much does it cost?

freeFree to download and use

The app is distributed as a free utility with no explicit subscription or IAP tiers, relying on ad-supported revenue.

Velocity

Dormant developmentShow more...

5 versions in history. Development pace: zombie.

See all version history

Who built it?

长金 胡

13+ apps tracked · Utilities

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Explore the full publisher profile

User Sentiment

What do users think recently?

Fresh user feedback skews thrilled. Users appreciate diverse detection methods like magnetic field and infrared scanning provide users with multiple ways to identify hidden devices and the free version offers significant utility without aggressive paywalls or hidden costs for core scanning features.

How are ratings & reviews evolving?

App Store
4.60 · 483

What users say, by theme

What Users Love
  • Diverse detection methods like magnetic field and infrared scanning provide users with multiple ways to identify hidden devices
  • The free version offers significant utility without aggressive paywalls or hidden costs for core scanning features
  • Straightforward interface design allows non-technical users to scan their environment for nearby devices with minimal friction
What Frustrates Users
  • Inconsistent distance measurements during Bluetooth scans cause confusion and make locating specific devices difficult for users
+ 1 more theme
What Users Want 1 request inside

49 of 49 recent reviews analyzed · high confidence · Thrilled overall

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Unlock 1 more frustration theme and 1 user request, each backed by review evidence.

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Competition

Competitive landscape for Detector:Find Lost/Spy Device

How's the Utilities market?

Detector:Find Lost/Spy Device maintains a 4.6-star rating across 483 total ratings, positioning it as a reliable free utility in the crowded privacy-tool segment.

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The rivals identified

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The Analyst's Read

Key takeaways for Detector:Find Lost/Spy Device

Where is it heading?

The privacy-utility market is consolidating around tools that offer reliable, real-time background monitoring. Detector:Find Lost/Spy Device remains stable due to its free, multi-sensor value proposition, but the lack of active development creates a churn risk as users seek more precise, updated alternatives.

  • The two-year update gap signals a maintenance-only posture, which prevents the team from addressing the proximity-measurement inaccuracies that frustrate users.
  • High sentiment scores indicate that the core multi-sensor utility remains highly valued, providing a stable base for future feature expansion.

The SWOT

Core Strengths
  • Multi-sensor integration provides a comprehensive privacy-scanning utility
Critical Frictions 2 weaknesses inside
Growth Levers
  • Background monitoring would increase passive utility and retention
Market Threats 1 threat identified

Next best moves

2 Invest

Stabilize Bluetooth proximity algorithms because inconsistent readings are the top complaint → improve device-location accuracy

+ 1 more prioritized move

The counter-intuitive read

The app's lack of updates is its current retention strategy…

Read the full take

Since the last report: The app's intelligence profile expanded due to a larger review sample size, surfacing specific technical complaints regarding Bluetooth proximity and ad-supported monetization. Despite this, the development status remains stagnant with no updates in over two years.

Bottom line

Stabilizing the core proximity algorithms would address the primary frustration driving negative sentiment. If the developer fails to resume the update cadence, the app risks losing its utility-based retention to competitors that offer more reliable, actively maintained detection tools.

Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.

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FAQ

Is Detector:Find Lost/Spy Device safe to use for privacy scanning?
Yes, the app is a utility designed to scan for hidden devices using standard smartphone sensors like Bluetooth and infrared. It does not require payment for core scanning features.
Does this app work without an internet connection?
The app uses local sensors like magnetic fields and Bluetooth to detect devices, which generally function offline. However, some features may rely on connectivity for ad delivery.
What is the difference between this and other spy device detectors?
This app distinguishes itself by aggregating four different detection methods—Bluetooth, magnetic field, infrared, and Wi-Fi—into one free interface, whereas many rivals focus on only one or two sensors.

Sources

  1. [1] App Store

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Detector:Find Lost/Spy Device, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

The app's intelligence profile expanded due to a larger review sample size, surfacing specific technical complaints regarding Bluetooth proximity and ad-supported monetization. Despite this, the development status remains stagnant with no updates in over two years.

added

Documented User Complaints

improved

Feature Repositioning

shifted

Target Audience Narrowing

added

Feature Documentation

Cite this report

Marlvel.ai. “Detector:Find Lost/Spy Device Intelligence Report.” Updated Sep 15, 2026. https://marlvel.ai/apps/detector-find-lost-spy-device

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