Comparison

Sentry vs Camera Finder

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

Head to head
About

Sentry

Features
Read full description

A room-scanning aid for your phone. Hidden cameras get concealed in everyday objects โ€” 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 โ€” infrared light, magnetic fields, bright reflections, and the devices on the network around you โ€” 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 โ€ข Infrared (IR) Scan โ€” your camera sensor can show infrared light, the kind night-vision cameras emit in the dark (as do remotes and many sensors) โ€ข Magnetic Field โ€” reads spikes near powered electronics, including devices with no Wi-Fi โ€ข Lens Reflection Scan โ€” on-device image analysis flags bright, lens-like glare for you to look at โ€ข Wi-Fi Network Audit โ€” lists devices on the network you're joined to and flags names matching known camera brands โ€ข Bluetooth Scan โ€” 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 โ€” 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 โ€ข Travelers in hotels, motels and Airbnbs โ€ข Renters checking a new place โ€ข Changing rooms, fitting rooms and restrooms โ€ข 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. ---------- Subscription details: โ€ข Sentry Pro is available as a Weekly, Yearly or one-time Lifetime purchase. Prices are shown in the app and may vary by region. โ€ข 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. โ€ข 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

About

Camera Finder

Features
Read full description

Protect your privacy wherever you go. Camera Finder: Spy Detector gives you 8 powerful detection tools to check hotel rooms, Airbnb rentals, vacation homes, changing rooms, and any private space for hidden cameras and recording devices โ€” using only your iPhone's built-in sensors. -> 8 DETECTION METHODS IN ONE APP -> Magnetic Field Detector Detects the electromagnetic signature of hidden electronics. Move your phone near suspicious objects โ€” the gauge rises when a device is nearby. -> IR Camera Detector Infrared LEDs used by night-vision spy cameras are invisible to the naked eye โ€” but not to your iPhone. Scan in a dark room to reveal glowing IR sources on screen. -> Multi-Color Light Scan View your surroundings through 4 simultaneous color filters. Camera lenses reflect light differently than ordinary surfaces โ€” compare reflections to spot anomalies. -> Lens Glare Scanner Live camera view with real-time glare detection. Tiny camera lenses produce a distinctive glare point โ€” this scanner highlights suspicious reflections as you pan. -> AR Camera Scan Augmented reality mode lets you drop persistent markers on suspicious spots as you scan a room. Markers stay anchored in 3D space so you can track every flagged location. -> Wi-Fi Device Scanner Lists every device broadcasting on your Wi-Fi network. Unfamiliar devices are flagged for your review โ€” a hidden camera connected to Wi-Fi will appear here. -> Bluetooth Scanner Scans for nearby Bluetooth devices. Many modern spy cameras transmit via Bluetooth โ€” this scanner shows signal strength so you can locate the source. -> Mirror / Two-Way Glass Test Step-by-step fingernail gap test to identify two-way mirrors. Includes an optional camera assist mode for additional visual reference. -> REFERENCE TOOLS โ€ข Hiding Spot Guide โ€” room-by-room reference of the most common hiding spots (bedroom, bathroom, living room, office) โ€ข Scan History โ€” review and manage all your past scan sessions โ€ข Adjustable IR sensitivity โ€” tune detection to your environment -> YOUR PRIVACY FIRST โ€ข All scanning happens entirely on your device โ€” no data is sent to any server โ€ข No account required โ€ข No location tracking โ€ข Camera, Bluetooth, and Wi-Fi access used only while you are actively scanning -> IMPORTANT DISCLAIMER Camera Finder is an assistive scanning tool. It does not guarantee detection of all hidden cameras or recording devices. Sensor-based detection has inherent limitations and may produce false positives. Always follow up with a thorough manual physical inspection. This app is intended solely to help protect your own privacy. Privacy Policy : https://sites.google.com/view/cameratc/home Apple Terms of Use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Sentry4 screens
Camera Finder4 screens

Verdict

The call

The clearest difference is ads: Sentry at none against Camera Finder's shown. Camera Finder's advantage is update cadence (every 6 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Sentry sells 4 in-app purchases, starting at $9.99 per 7 days and Camera Finder sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sentry ships an update fortnightly, Camera Finder every 6 days. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

Scorecard2 real differences ยท 4 level
Sentry versus Camera Finder: the parameters behind the verdict, then further details
ParameterSentryCamera Finder
PriceFreeFree
Update frequencyFortnightlyEvery 6 days โ€” better
AdsNo โ€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS17.016.6 โ€” better
Further details โ€” not scored
Size16 MB15 MB
Age rating4+12+
DeveloperMD. NASAR UDDIN REDOYAPP TEAM

In-app purchases

4 purchases

Sentry

Subscriptions2
  • Sentry Pro (Weekly)$9.997 Days
  • Sentry Pro (Yearly)3 Days trial$59.991 Year
One-time2
  • Sentry Pro Lifetime$99.99
  • Sentry Pro Lifetime$149.99
3 purchases

Camera Finder

Subscriptions3
  • Weekly$2.997 Days
  • Monthly$9.991 Month
  • Yearly$49.991 Year

Questions

Is Sentry free?
Sentry is free to download, with in-app purchases available.
Is Camera Finder free?
Camera Finder is free to download, with in-app purchases available.
Do Sentry or Camera Finder have ads?
Camera Finder shows ads; Sentry does not.
Which is updated more often, Sentry or Camera Finder?
Sentry ships an update fortnightly, and Camera Finder every 6 days. Most recently, Sentry was updated on September 18, 2026 and Camera Finder on September 10, 2026.

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