Comparison

Sentra AI vs Argus

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

Head to head
About

Sentra AI

Read full description

Sentra AI turns your existing security cameras into a real-time alert channel you can trust. Whether you are watching over your home, your shop, or a business site, you get told when something actually happens. Most camera systems flood you with motion alerts, and almost none of them matter. Sentra AI verifies detections before they reach you, so the notifications you get represent real events, not wind, shadows, or passing headlights. WHAT YOU GET Real-time verified alerts A push notification the moment a verified event is detected on one of your cameras, with a preview image and a short description, so you know what happened before you even open the app. Full event details Open any alert to see the captured image, which camera it came from, the exact time, and what was detected. Built-in media viewer View event images and clips full screen inside the app. Camera and alert control Choose which cameras you watch, which detection types matter to you, and set schedules or mute windows so you are not alerted when you do not want to be. Multiple users per account Add several people to one account so alerts reach everyone who needs to see them: family members, staff, or whoever is on call. WhatsApp alerts Optionally link a phone number to receive alerts on WhatsApp as well. Six languages with full right-to-left support English, Hebrew, German, Spanish, French, and Portuguese. GETTING STARTED Sentra AI works with connected NVR and camera systems. An account is required. Contact us through the support link on this page to find out about availability for your setup.

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
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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

Sentra AI4 screens
Argus4 screens

Verdict

The call

The clearest difference is in-app purchases: Sentra AI at none against Argus's 2. Argus's advantage is update cadence (every 3 weeks vs every 5 weeks). On price, ads, device support and iOS requirement 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. Argus sells 2 in-app purchases, starting at $7.99 per 7 days. Sentra AI asks for nothing beyond the download.

UpkeepUpdate frequency

Sentra AI ships an update every 5 weeks, Argus every 3 weeks. Both last shipped on October 24, 2026.

Scorecard2 real differences · 7 level
Sentra AI versus Argus: the parameters behind the verdict, then further details
ParameterSentra AIArgus
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better16.0
Further details — not scored
Size38 MB35 MB
Age rating12+4+
DeveloperBizz Technologies LTDRoman Hadiiev

In-app purchases

None

Sentra AI

No in-app purchases

2 purchases

Argus

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

Questions

Is Sentra AI free?
Sentra AI is free to download, with no in-app purchases.
Is Argus free?
Argus is free to download, with in-app purchases available.
Do Sentra AI or Argus have ads?
Neither Sentra AI nor Argus shows ads.
Which is updated more often, Sentra AI or Argus?
Sentra AI ships an update every 5 weeks, and Argus every 3 weeks. Most recently, Sentra AI was updated on October 24, 2026 and Argus on October 24, 2026.

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