Sentry: Hidden Camera Scan
IR, magnetic & Wi-Fi room scan
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Measures five signals in a room — IR, magnetic, lens glare, Wi-Fi & Bluetooth — and shows you every reading. A scanning aid, not a guarantee. 100% on-device.
A room-scanning aid for your phone.
Hidden cameras get concealed in everyday objects — smoke detectors, USB chargers, alarm clocks, vents and mirrors. Sentry uses the sensors already in your phone to measure five different signals in a room and shows you every reading, so you know which spots are worth inspecting by hand.
Sentry does not identify cameras. It measures signals — infrared light, magnetic fields, bright reflections, and the devices on the network around you — and each of those signals can come from ordinary electronics just as easily as from a camera. No app, and no dedicated hardware, can find every hidden camera. Sentry is a tool that guides a careful manual check; it is not a guarantee and should never be treated as one.
WHAT SENTRY MEASURES
• Infrared (IR) Scan — your camera sensor can show infrared light, the kind night-vision cameras emit in the dark (as do remotes and many sensors)
• Magnetic Field — reads spikes near powered electronics, including devices with no Wi-Fi
• Lens Reflection Scan — on-device image analysis flags bright, lens-like glare for you to look at
• Wi-Fi Network Audit — lists devices on the network you're joined to and flags names matching known camera brands
• Bluetooth Scan — lists nearby advertising devices with an estimated distance
HOW TO USE IT
1. Tap Scan and pan your phone slowly around the room
2. Watch the live readings — a glow, a highlighted box or a signal spike
3. Go to each flagged spot and inspect it with your own eyes and hands
The third step is the important one. Sentry tells you where to look; it cannot tell you what is there.
BUILT PRIVATE
Sentry works entirely on your device. No account. No uploads. No tracking. Your scans and any photos you save never leave your phone.
WHO IT'S FOR
• Travelers in hotels, motels and Airbnbs
• Renters checking a new place
• Changing rooms, fitting rooms and restrooms
• Meeting rooms and private offices
SENTRY PRO
Sentry Pro unlocks all 5 scan methods, unlimited full-room guided sweeps, and a private scan history. Choose a one-time Lifetime purchase, a Yearly plan, or a flexible Weekly plan. Cancel anytime.
IF YOU FIND SOMETHING
If you believe you've found a real device, stay calm, don't touch it, document it, and contact the property and your local authorities.
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Subscription details:
• Sentry Pro is available as a Weekly, Yearly or one-time Lifetime purchase. Prices are shown in the app and may vary by region.
• Subscriptions auto-renew unless turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends.
• Manage or cancel anytime in your App Store account settings. Any unused portion of a free trial is forfeited when you buy a subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://sites.google.com/view/sentryhiddencameradetector/home
Questions or feedback? developer.nasar416@gmail.com
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Redesigned Settings — everything is easier to find, with a new About & Legal page for support, restore, terms and privacy.
• Choose your language inside the app — no need to change your iPhone settings.
• Plans and prices now load directly from the App Store in your local currency.
• Bug fixes and performance improvements.
The developer, MD. NASAR UDDIN REDOY, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MD. NASAR UDDIN REDOY
- Size
- 16.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 32 more
- English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Sentry Pro (Yearly) $59.99
- Sentry Pro (Weekly) $9.99
- Sentry Pro Lifetime $99.99
- Sentry Pro Lifetime $149.99
- Copyright
- © 2026 Md. Nasar Uddin Redoy