# Signal Watch Guard — Spot nearby Bluetooth devices

> Detects and alerts for nearby Bluetooth Low Energy devices with detailed inspection. (iPhone/iPad app by Hacking Things LLC.)

- Source: https://appshunter.io/ios/app/signal-watch-guard/id6801983545 (this page in markdown: same URL + `.md`)
- Developer: [Hacking Things LLC](https://appshunter.io/developer/6782716206)
- Category: Utilities, Productivity
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 18.6 · 3 MB
- Languages: American English
- Released: 2026-09-13
- Data updated: 2026-10-09
- Monetization: free

## What is Signal Watch Guard?

Signal Watch Guard listens for the Bluetooth Low Energy signals that nearby devices broadcast, and alerts you when a device you care about is close by. It's a simple, private radar for the wireless world around you — no account, no sign-in, and nothing ever leaves your iPhone.

WATCHLIST ALERTS
Add the devices you want to know about and get a notification the moment one appears nearby. You're alerted once when a device shows up; while it stays around it keeps showing in Detections without nagging you again, and if it leaves and comes back you're alerted again. Comes preloaded with signatures for popular smart glasses and a few well-known camera and body-worn devices — edit, disable, or delete any of them.

SEE EVERYTHING NEARBY
The Scan tab lists every Bluetooth advertiser it hears, with maker names resolved from the built-in Bluetooth database, service IDs, and live signal strength. Tap any device to inspect its decoded fields and raw advertisement data, and add it to your watchlist in one tap.

PRECISE, ALL-FIELDS MATCHING
A watchlist item matches only when every detail you specify matches — maker ID, name, service ID, or manufacturer data — so you get the device you meant, not everything from the same maker. Want broader coverage? Add separate items.

SIGHTINGS LOG
Every alert is logged with the date, time, signal, and the full details collected from that device, so you can review it later. Turn on optional location to save an approximate spot with each sighting and open it in Apple Maps or Google Maps. Group by day, search, and export or import the whole log as CSV.

MADE FOR PRIVACY
• All scanning and matching happen on your device.
• No analytics, no accounts, no data collection.
• Nothing is ever uploaded or shared.

CHOOSE HOW YOU READ SIGNALS
Show signal strength in dBm, or a rough distance estimate in meters or feet.

GOOD TO KNOW
Signal Watch Guard only sees devices that broadcast Bluetooth Low Energy advertisements. Apple doesn't expose a device's permanent identifier, and many devices rotate their Bluetooth address over time, so repeat-detection and "ignore" aren't perfect. Devices broadcast most when turning on, pairing, or opening their case, and can go quiet in between. Distance is an estimate only — walls, bodies, and orientation all affect it.

## Key features

- Watchlist alerts for specific devices
- Real-time detection of all nearby Bluetooth advertisers
- Detailed device inspection with raw data
- Precise, all-fields matching for alerts
- Sightings log with date, time, and signal details
- Optional location saving for sightings
- Export/import sightings log as CSV


## Frequently asked questions about Signal Watch Guard

### What devices can Signal Watch Guard detect?

Signal Watch Guard can detect any device that broadcasts Bluetooth Low Energy advertisements. This includes popular smart glasses, cameras, and body-worn devices, as well as other BLE-enabled gadgets. It cannot detect devices that do not broadcast BLE signals.

### How does Signal Watch Guard ensure privacy?

Signal Watch Guard is designed for privacy. All scanning and matching occur directly on your device, with no analytics, accounts, or data collection. Nothing is ever uploaded or shared, ensuring your Bluetooth activity remains confidential.

### Can I customize the alerts in Signal Watch Guard?

Yes, you can customize alerts by adding specific devices to your watchlist. You can specify details like maker ID, name, service ID, or manufacturer data for precise matching. You can also edit, disable, or delete preloaded device signatures.

### How accurate is the distance estimation in Signal Watch Guard?

The distance estimation in Signal Watch Guard is approximate. Factors like walls, bodies, and device orientation can affect signal strength, leading to variations in the estimated distance. Signal strength is also shown in dBm for a more technical reading.

### Does Signal Watch Guard have ads?

No, Signal Watch Guard does not contain advertisements. It is a completely ad-free application, allowing for an uninterrupted user experience.

### What platforms is Signal Watch Guard available on?

Signal Watch Guard is available for iPhone and iPad devices. It requires iOS 13.0 or later.

### How often is Signal Watch Guard updated?

Signal Watch Guard was last updated on September 19, 2026, with version 1.4.3. This indicates a relatively recent update, suggesting ongoing support and development.

### Can I export my detected device logs from Signal Watch Guard?

Yes, you can export your entire sightings log as a CSV file. This allows you to review, analyze, or back up the data of detected devices and their signal information outside of the application.

## Version history (last 2 releases)

### 1.4.3 — 2026-09-19

Updated the App name

### 1.4.2 — 2026-09-13

No release notes.

## Apps similar to Signal Watch Guard

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [XNat](https://appshunter.io/ios/app/xnat/id6754518015) | — | $0.99 | Utilities |
| [SigScan: Signal Radar](https://appshunter.io/ios/app/sigscan-signal-radar/id6806315838) | — | Free | Utilities |
| [Device Tracker: Oopti Find Air](https://appshunter.io/ios/app/device-tracker-oopti-find-air/id6756211586) | 5.0 (1) | Free | Utilities |
| [Ward: Drone Detector](https://appshunter.io/ios/app/ward-drone-detector/id6809457370) | — | Free | Utilities |
| [No JS](https://appshunter.io/ios/app/no-js/id1062685513) | 4.5 (19) | $2.99 | Utilities |
| [AnyLLM](https://appshunter.io/ios/app/anyllm/id6756842259) | 3.7 (3) | $6.99 | Utilities |

## More apps by Hacking Things LLC

- [CVSS Score Calculator](https://appshunter.io/ios/app/cvss-score-calculator/id6782745255)
- [Simple EMDR](https://appshunter.io/ios/app/simple-emdr/id6797372950)

All apps by Hacking Things LLC: https://appshunter.io/developer/6782716206

## Related topics

[ota spy app](https://appshunter.io/ios/topics/ota-spy-app)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-09.*