Comparison

Hidden Camera Detector vs Sonar

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

Head to head
About

Hidden Camera Detector

Detect hidden cameras and spy devices in any room using your phone. This app offers multiple scanning methods to quickly identify potential surveillance equipment, ensuring your privacy in hotels, rentals, and other spaces.

Highlights
  • Wi-Fi network scanner
  • Infrared (IR) lens viewer
  • Magnetic field detector
  • Audio bug detection
  • Fast room sweep
  • Step-by-step guide
Features
Read full description

Worried someone is watching? Check into any hotel, Airbnb, or rental and sweep the room for hidden cameras and spy devices. NSpy is a hidden camera detector that turns your iPhone into a portable counter-surveillance kit — no extra gear, no tech skills required. Hidden cameras are smaller and cheaper than ever. A pinhole camera can hide inside a smoke detector, an alarm clock, a power outlet, a USB charger, or an air vent. NSpy gives you three detection methods to help you look for them and check your space. How NSpy works • Wi-Fi network scanner — lists the devices on the same Wi-Fi network and flags camera-like and microphone-like hardware as suspicious, so you know where to look first. • Infrared (IR) view — dim the lights and use the color filters to help you spot the glow of night-vision IR LEDs, which is invisible to the naked eye. • Magnetic field detector — uses your phone's magnetometer to show magnetic changes near clocks, vents, outlets, and smoke detectors, helping you narrow down where to look. What you get • Three scan methods in one app, each started with one tap • Per-device detail view to inspect anything suspicious on the network • Flags network-connected microphones and audio devices on the same Wi-Fi • Step-by-step "how it works" guide so you know exactly what to look for • Clean, private interface — your scans stay on your device • Multi-language support and responsive in-app support Who it's for • Travelers checking into hotels, motels, and short-term rentals • Airbnb and vacation-rental guests who want peace of mind on arrival • Renters and tenants inspecting a new apartment or room • Parents checking a child's bedroom or a babysitter's space • Business travelers securing a room before a private meeting • Domestic-violence survivors and anyone worried about being watched or stalked • Anyone uneasy about a bathroom, changing room, locker room, dressing room, or gym Why NSpy When you walk into an unfamiliar space, you shouldn't have to wonder who's recording you. NSpy combines a Wi-Fi scanner, an infrared camera viewer, and an EMF/magnetic detector into one focused privacy tool built for one job: helping you check for hidden cameras, spy gear, and listening devices. It's a hidden camera finder and bug detector you can carry everywhere. A few quick notes: NSpy is a privacy and counter-surveillance scanning tool, not a guarantee against every covert device. No detector app can promise it will find 100% of hidden cameras, so use NSpy together with a careful visual inspection of mirrors, vents, and electronics. NSpy is not an antivirus, a Wi-Fi speed test, or a Bluetooth tracker finder. Download NSpy and take privacy back into your own hands. Scan your next hotel, rental, or meeting room with confidence. Pro unlocks unlimited scans, infrared color filters, magnetic field detection, and complete device reports. NSpy offers optional paid subscriptions for access to certain features. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and can be managed or cancelled at any time in your App Store account settings. Privacy Policy: https://vidus6.com/hidden-camera-detector/privacy Terms of Service: https://vidus6.com/hidden-camera-detector/terms

About

Sonar

Features
Read full description

SONAR: HIDDEN CAMERA AND TRACKER DETECTOR Sonar helps you check for hidden cameras, hidden microphones, and Bluetooth/Wi-Fi trackers, a privacy inspection support tool with infrared, Wi-Fi network, and Bluetooth scanning. Whether you're in a motel room, hotel, Airbnb, locker room, public restroom, fitting room, car, or your own luggage, Sonar helps you inspect the space in minutes. IMPORTANT: no phone app can guarantee with certainty that a space is free of hidden cameras. Sonar is a support tool, each finding comes with a confidence level so you can physically check the spot it flags. Always use it alongside a manual inspection. DETECTOR FEATURES Infrared scanner Point your phone's camera and look for the telltale reflection of hidden spy camera lenses, a common sign in cameras disguised as a button camera, pen camera, charger, smoke detector, or clock. Works best in a dark room and doesn't replace a physical check. Wi-Fi network and Bluetooth device detection Sonar scans the local Wi-Fi network and nearby Bluetooth devices to flag devices with characteristics of connected cameras or trackers. Each result shows a confidence level, not a definitive confirmation. Bluetooth tracker detector Flags signals from Bluetooth trackers nearby: in your car, bag, luggage, or personal belongings, as support against unwanted tracking during travel and everyday life. Guided sweep A practical checklist walks you through spots where cameras and microphones are commonly hidden: outlets, smoke detectors, picture frames, mirrors, chargers, clocks, and more, so you can physically inspect each one. Clear, straightforward results See the confidence level of each finding, with real-time visual indication, no technical jargon. WHY USE SONAR Works offline Simple interface anyone can use Fast: full sweep in just a few minutes No complicated sign-up GREAT FOR - Motel, hotel, and Airbnb stays - Short-term rentals and vacation homes - Locker rooms, gyms, and public restrooms - Store fitting rooms - Checking your car and luggage for trackers - Confidential meetings and work spaces YOUR PRIVACY COMES FIRST Hidden cameras and trackers are more common than you'd think. Sonar exists to give you a support tool for checking your space, simple and accessible, always as a complement to your own inspection, never as an absolute guarantee. WHERE YOU CAN USE SONAR Hotel room · Motel room · Airbnb · Vacation rental · Bed and breakfast · Hostel · Resort · Spa · Sauna · Public restroom · Gym locker room · Pool locker room · Club locker room · Store fitting room · Lingerie fitting room · Event or theater dressing room · Meeting room · Shared office · Coworking space · Rental car · Uber or taxi · Rented beach house · Vacation cabin · Guest room at someone else's home · Doctor's office or clinic · Short-term rental property THE GUIDED CHECKLIST COVERS COMMON SPOTS LIKE Smoke detector · Wall clock · Desk clock · Alarm clock · Phone charger · USB wall adapter · Power strip · Wi-Fi router · Bluetooth speaker · Wall art · Picture frame · Mirror · Desk lamp · TV remote control · Teddy bear · Glasses · Pen · Keychain · Fake potted plant · Book on a shelf Download Sonar now and run your first sweep in under 2 minutes. ---------------------------- Terms of Use (EULA): https://sonarcameradetector.com/terms

Screenshots

Hidden Camera Detector4 screens
Sonar4 screens

Verdict

The call

The clearest difference is device support: Hidden Camera Detector at 3 against Sonar's 1. On price, update cadence, ads and in-app purchases 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

Both are free to download. Hidden Camera Detector sells 7 in-app purchases, starting at $2.99 per 7 days and Sonar sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Hidden Camera Detector versus Sonar: the parameters behind the verdict, then further details
ParameterHidden Camera DetectorSonar
PriceFreeFree
Rating3.5 (4 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings4 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size60 MB55 MB
Age rating4+4+
DeveloperVIDUS TEKNOLOJI ANONIM SIRKETICaue Mattos Silvestre

In-app purchases

7 purchases

Hidden Camera Detector

Subscriptions6
  • Weekly Special: Privacy Pro$2.997 Days
  • Weekly Pro: Privacy Scanner$7.997 Days
  • Weekly Trial: Privacy Pro3 Days trial$7.997 Days
Show 3 more
  • NSpy Hidden Camera Detector$14.997 Days
  • NSpy: 3 Months Premium$39.993 Months
  • Annual Pro: Privacy Scanner$49.991 Year
One-time1
  • Lifetime Premium$99.99
3 purchases

Sonar

Subscriptions3
  • Weekly$4.997 Days
  • Monthly Subscription$8.991 Month
  • Annual Subscription3 Days trial$29.991 Year

Questions

Is Hidden Camera Detector free?
Hidden Camera Detector is free to download, with in-app purchases available.
Is Sonar free?
Sonar is free to download, with in-app purchases available.
Do Hidden Camera Detector or Sonar have ads?
Neither Hidden Camera Detector nor Sonar shows ads.
Which is updated more often, Hidden Camera Detector or Sonar?
Hidden Camera Detector ships an update every 3 weeks, and Sonar every 3 weeks. Most recently, Hidden Camera Detector was updated on October 28, 2026 and Sonar on October 24, 2026.

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