Comparison

Hidden Device Radar vs Argus

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

Head to head
About

Hidden Device Radar

Detect hidden cameras, trackers, and smart devices using Bluetooth, Wi-Fi, and NFC signals. Get real-time threat scoring and a proximity graph to locate suspicious devices. Protect your privacy by scanning hotel rooms, rentals, or your home.

Highlights
  • Bluetooth device detection
  • Wi-Fi/local network scanning
  • Real-time threat scoring
  • Signal Strength Finder (Pro)
  • Detection history
  • On-device processing
Features
Read full description

Worried someone is watching or following you? Hidden Device Radar helps you find hidden cameras, trackers, and unknown smart devices — right from your iPhone. Whether you're checking a hotel room, a short-term rental, an office, a car, or your own home, Hidden Device Radar gives you a fast, private way to spot devices that may be recording or tracking you. WHAT IT DETECTS • Bluetooth devices — trackers (AirTag, Tile, SmartTag, Chipolo), cameras, speakers, wearables, and other IoT gadgets • Wi-Fi / local network devices — IP cameras, baby monitors, NVRs, doorbells, and smart-home hardware • Unknown trackers that may be traveling with you • NFC tags — tap to identify a chip hidden in an object (on supported iPhones) KEY FEATURES • Real-time threat scoring — every device is flagged as Info, Suspicious, Elevated, or Critical • Signal Strength Finder — a "warmer / colder" proximity graph that helps you physically locate a device (Pro) • Scan modes for a quick sweep, a single room, or a whole floor • Detailed device fingerprints and manufacturer identification • Detection history so you can tell what's new versus what's always there • 100% on-device — your scans never leave your iPhone. No account, no tracking, no ads. HIDDEN DEVICE RADAR PRO Unlock everything with a one-time purchase: • Signal Strength Finder • NFC Tap-to-Identify • Full threat analysis and guidance • Unlimited detection history • AI Trend Insight HONEST ABOUT LIMITATIONS Hidden Device Radar detects devices that broadcast Bluetooth, Wi-Fi, or NFC signals. Bluetooth, Wi-Fi, and NFC advertisements are unauthenticated, so results are strong investigative leads — not legal proof of a device's identity or intent. The app cannot detect devices that are powered off, purely analog/wired, or that broadcast no signal. PRIVACY FIRST Everything runs locally on your device. We don't collect, upload, or sell your data. There are no accounts and no ads. Use Hidden Device Radar to check your own spaces and protect your own privacy. Always follow the laws in your area.

About

Argus

Detect hidden cameras and trackers in any room using multiple scanning methods. It offers Wi-Fi, Bluetooth, lens, infrared, and magnet detection to ensure privacy in various locations like hotels and rentals. The app prioritizes user privacy with no account required and local data storage.

Highlights
  • Wi-Fi scanner for network devices
  • Bluetooth tracker locator
  • Lens camera finder mode
  • Infrared mode for night-vision cameras
  • Magnet check for hidden electronics
  • Privacy-focused with no account needed
Features
Read full description

Argus checks any room for hidden cameras and trackers with four scanners on your iPhone: Wi-Fi, Bluetooth with a tracker locator, a camera finder with Lens and Infrared modes, and a magnet check. The Lens camera finder is free with no scan limit and no account, and so is finding a tracker. Hotel rooms, Airbnbs and holiday rentals, changing rooms, gym lockers, rental cars. No app finds every camera, and no single method does: one in a smoke detector may sit on the room's Wi-Fi, or record to a memory card and touch no network. That is why Argus checks four ways. WI-FI SCANNER Finds the devices on the network you joined and flags those answering on camera ports: RTSP video streams, ONVIF, Hikvision, Dahua, XMEye, V380, Ezviz, Tapo, Reolink. Printers, routers and TVs that name themselves are set aside. Free: the device count, camera alerts and identified devices by name. Argus Pro shows which device it is: address, open ports and what its service says about itself, often the firmware. Blind spot: hotel guest Wi-Fi often keeps devices apart; Argus says so instead of calling the room clean. BLUETOOTH AND FIND IT Lists nearby Bluetooth devices and recognises item trackers: Tile, Samsung SmartTag, Chipolo, Pebblebee, Google Find My Device tags. Find it walks you to one: a ring fills as you get closer, ticks quicken, an optional beep helps. Free: the count, possible trackers and finding them. Argus Pro: every device by name and signal, and Find it for any of them. Blind spot: a paired, silent device doesn't advertise, and iPhone may hide Apple's Find My tags from apps (iOS warns about those itself). CAMERA FINDER: LENS AND INFRARED Lens mode, free: lights off, torch on, sweep slowly. A lens returns a tight bright glint; a red, green or blue filter makes it stand out. Infrared mode, Argus Pro: night-vision cameras light a room with infrared your eyes can't see, and an iPhone camera often can. Argus looks for that light and beeps when it spots one. Blind spot: both need a dark room, and a shiny point or ordinary light can trigger them. A flag means look closer. MAGNET CHECK, ARGUS PRO Hold the phone close to a smoke detector, clock or charger: the dial jumps at the metal and magnets of hidden electronics, with a buzz and a beep. Screws and pipes move it too, so compare with a similar object you trust. A FIVE-MINUTE SWEEP Scan the Wi-Fi. Run Bluetooth from the bed and follow any tracker with Find it. Lights off: sweep everything facing the bed in Lens, then Infrared. Pass the magnet over whatever stood out. Two checks pointing at one object: inspect it. PRIVACY No account, no ads. What a scan finds stays on your iPhone. Camera frames and sensor readings are never recorded; only Wi-Fi and Bluetooth scans are saved, on your phone. Subscriptions run through Apple and RevenueCat; crash reports and usage analytics are not linked to you. No tracking. In 13 languages: English, Spanish, Portuguese, French, Arabic, Turkish, Korean, Japanese, Traditional Chinese, Indonesian, Vietnamese, Hindi, German. FREE AND ARGUS PRO Free: the Lens camera finder; Wi-Fi and Bluetooth scans with their counts, camera and tracker alerts; identified Wi-Fi devices; finding a tracker. Argus Pro: which Wi-Fi device it is and its details; every Bluetooth device by name; Find it for any device; Infrared mode; the magnet check. Requires iOS 16 or later. Hotel sweep guide: https://tatrom.github.io/ Argus Pro is a weekly or yearly auto-renewable subscription. The price is shown in the app before you subscribe. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Manage or cancel it in your Apple Account settings. Terms of Use: https://tatrom.github.io/privacy-terms/terms-of-use.html Privacy Policy: https://tatrom.github.io/privacy-terms/privacy-policy.html

Screenshots

Hidden Device Radar4 screens
Argus4 screens

Verdict

The call

Hidden Device Radar and Argus are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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 Device Radar sells 1 one-off in-app purchase and Argus sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Hidden Device Radar against 5.0 for Argus. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

UpkeepUpdate frequency

Hidden Device Radar ships an update every 2 weeks, Argus every 3 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

ScorecardNo meaningful differences
Hidden Device Radar versus Argus: the parameters behind the verdict, then further details
ParameterHidden Device RadarArgus
PriceFreeFree
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews—
Number of ratings23 — better
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.0 — better
Further details — not scored
Size9 MB35 MB
Age rating4+4+
DeveloperAurem Digital llcRoman Hadiiev

Customer experience

Hidden Device Radar

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Argus

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Hidden Device Radar

One-time1
  • Hidden Device Radar$4.99
2 purchases

Argus

Subscriptions2
  • Weekly$7.997 Days
  • Yearly3 Days trial$49.991 Year

Questions

Is Hidden Device Radar free?
Hidden Device Radar is free to download, with in-app purchases available.
Is Argus free?
Argus is free to download, with in-app purchases available.
Which has better reviews, Hidden Device Radar or Argus?
Hidden Device Radar and Argus are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do Hidden Device Radar or Argus have ads?
Neither Hidden Device Radar nor Argus shows ads.
Which is updated more often, Hidden Device Radar or Argus?
Hidden Device Radar ships an update every 2 weeks, and Argus every 3 weeks. Most recently, Hidden Device Radar was updated on October 31, 2026 and Argus on November 5, 2026.

Other comparisons