Argus vs Savvy Shield
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Argus
This app transforms your iPhone into a comprehensive counter-surveillance tool. It helps users detect hidden cameras, listening devices, and trackers in various locations with a structured sweep protocol and multiple detection methods.
- Six independent detection methods
- Optical lens reflection scan
- Infrared light source detection
- WiFi network audit
- Bluetooth Low Energy scan
- Magnetic field meter
- Guided room presets
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Argus is a counter-surveillance field instrument for iPhone. It turns your phone into a six-tool sweep kit for travelers, hosts, parents and privacy-minded users — built to check any room for hidden cameras, listening devices, BLE trackers and rogue WiFi nodes in roughly three minutes. Most "spy detector" apps do one trick (a magnetometer dial in a fake radar UI) and call it a day. Argus rejects that model. It chains real iPhone sensors into a structured sweep protocol that mirrors how counter-surveillance teams actually inspect a room. — WHAT MAKES ARGUS DIFFERENT — ◉ A real protocol, not a single trick Six independent detection methods, each surfacing a different class of threat. Every reading folds into a structured dossier. ◉ Six instruments, one workflow Optical lens reflection, infrared light source, WiFi network audit, Bluetooth Low Energy scan, magnetic field meter, maximum-brightness flashlight beacon. All driven by real iPhone telemetry. ◉ Guided room presets Six location presets — Hotel, Airbnb / Vrbo, Office, Bathroom, Changing Room, General — each walks you step by step through where to point, what to listen for and what to flag. ◉ Threat Map (unique to Argus) Every sweep is geotagged and pinned on a MapKit view, color-coded by threat level. Browse every hotel, rental and venue you've checked. Useful for frequent travelers and hosts auditing their own units. ◉ Sweep Dossier reports Each sweep produces a shareable PDF report (safety score, flagged devices, timestamps, findings). Records live on-device. ◉ Field Manual built in Real counter-surveillance tradecraft — how spy cameras hide, how to spot them, your legal rights, what to do if you find one. Researched content, not filler. ◉ Privacy by design No account. No cloud sync. No telemetry. The app works fully offline. Useful in hotel WiFi situations where you don't want to broadcast what you're doing. — INSTRUMENT REFERENCE — ◉ Optical Lens Scan — flags reflective glints from camera lenses hidden in mirrors, smoke detectors, vents and décor. ◉ Infrared Detector — surfaces invisible IR light sources from night-vision spy cameras via the front sensor. ◉ WiFi Network Audit — enumerates every device on the local network and flags unknown vendors and rogue cameras. ◉ Bluetooth RF Sweep — discovers BLE transmitters in the 2.4 GHz band, including Bluetooth item trackers and BLE bugs. ◉ EMF Magnetic Meter — baseline + peak detection of magnetic anomalies from electronics hidden behind walls and furniture. ◉ Flashlight Beacon — maximum-brightness mode for manual lens-glint inspection. — QUICK SCAN PRESETS — Hotel Room · Airbnb / Vrbo · Office · Bathroom · Changing Room · General. Each preset chains the relevant instruments into one dossier. — WHO ARGUS IS FOR — • Travelers checking hotel rooms before unpacking • Airbnb / Vrbo guests auditing short-term rentals • Hosts inspecting their own properties • Parents checking rooms, dorms or daycares • Anyone in shared housing, gyms or rentals • Privacy-conscious professionals on the road — IMPORTANT — No consumer app can guarantee 100% detection of every hidden camera or covert device. Argus is a supplementary tool that helps a careful user inspect a room more thoroughly than they could unaided. Use Argus to sharpen awareness, structure the sweep, and create a record — not to replace common sense. — PRO ACCESS — Unlimited sweeps, all six room presets, PDF dossier export, ad-free. Weekly, yearly or lifetime. — LEGAL — Terms of Use: https://pnkl26.web.app/terms-of-service Privacy Policy: https://pnkl26.web.app/privacy-policy — SUPPORT — pnkhanhlinh0206@gmail.com
Savvy Shield
This app reveals and blocks background data connections to trackers and data brokers. It provides a clear, plain-English explanation of company data practices and assigns a privacy score based on your device's activity. Take back control of your personal information.
- Reveals device contacts with trackers
- Blocks known trackers and ad networks
- Explains company data practices
- Provides a privacy score
- Shows blocked connections
- On-device VPN configuration
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Savvy Shield shows you where your iPhone's data actually goes, then stops it. Every day, your apps quietly connect to trackers, ad networks, and data brokers in the background. Savvy Shield turns that hidden activity into a clear, plain-English view, so you can see which companies your phone is talking to and take back control. WHAT SAVVY SHIELD DOES • Reveals the trackers and destinations your device contacts • Blocks known trackers and ad networks before they load • Explains, in plain English, what each company takes and what its terms allow • Gives you a privacy score based on real evidence from your device • Shows you exactly what was blocked, so you can check the number yourself HOW IT WORKS On iPhone and iPad, Savvy Shield installs a small on-device VPN configuration built on Apple's Network Extension framework. It carries only your device's DNS lookups, the name-to-address requests, to Savvy's encrypted resolver. It does not route your web traffic through Savvy's servers, and it is not a general-purpose VPN. Because it uses Apple's VPN framework, iOS shows a VPN icon in the status bar while it is on. You allow it with one tap and can turn it off anytime in the app. Savvy Shield never reads the content of your messages or browsing. When a tracker is blocked, no connection is opened and nothing is uploaded. Some ads are not affected. Services that deliver ads from the same place as their own content, like video and social feeds, will still show them. We would rather tell you that than promise otherwise. BUILT BY A PRIVACY COMPANY We don't sell your data. We don't run ads. No hidden tracking. No account or sign-in is needed. SAVVY SHIELD SUBSCRIPTION • Savvy Shield Monthly, $4.99 per month, auto-renewable • Savvy Shield Yearly, $49.99 per year, auto-renewable • Prices shown in US dollars; your App Store storefront sets the local price • Payment is charged to your Apple ID at confirmation of purchase • Your subscription renews automatically unless canceled at least 24 hours before the end of the current period • Manage or cancel anytime in your App Store account settings Terms of Use (EULA): https://savvysignals.com/terms Privacy Policy: https://savvysignals.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Argus at none against Savvy Shield's 2. Savvy Shield's advantage is ratings volume (4 vs 1) and device support (3 vs 1). On price, rating and ads 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
Both are free to download. Savvy Shield sells 2 in-app purchases, starting at $4.99 per month. Argus asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Argus against 5.0 for Savvy Shield. Both are backed by a comparable volume of ratings — 1 and 4 respectively.
| Parameter | Argus | Savvy Shield |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 4 — better |
| Update frequency | — | Daily |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 7 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Linh Phan Nhat Khanh | Savvy Signals LLC |
Customer experience
Argus
Savvy Shield
In-app purchases
Argus
No in-app purchases
Savvy Shield
- Savvy Shield Monthly$4.991 Month
- Savvy Shield Yearly$49.991 Year









