Comparison

mDevice vs Signal Watch Guard

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

Head to head
About

mDevice

Features
Read full description

mDevice allows you to add, manage, and monitor all your devices from a single, clean interface. Whether you use multiple phones, laptops, or smart devices. mDevice keeps everything organized, synced, and accessible whenever you need it. Key Features All Devices in One Place Add mobile phones, laptops, computers, servers, tablets, smart devices, and even custom hardware. Live Device Monitoring View status details including battery level, location (if supported), last online time, OS version, and network information. Smart Actions • Play sound on supported devices • View location • Ping to check online status • Create and trigger custom actions Automatic Background Updates Device information updates every 15 minutes for real-time accuracy and visibility. Clean and Simple Interface Designed to help you find and manage any device quickly and easily. Private and Secure All data remains encrypted and accessible only to the owner.

About

Signal Watch Guard

This app acts as a private radar for nearby Bluetooth Low Energy devices. It alerts you when specific devices you're watching for appear, logs all detected devices, and allows for detailed inspection of their broadcast data. All processing happens on your device for maximum privacy.

Highlights
  • 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
Features
Read full description

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.

Screenshots

mDevice4 screens
Signal Watch Guard4 screens

Verdict

The call

The clearest difference is update cadence: Signal Watch Guard at weekly against mDevice's fortnightly. mDevice's advantage is iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

mDevice ships an update fortnightly, Signal Watch Guard weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
mDevice versus Signal Watch Guard: the parameters behind the verdict, then further details
ParametermDeviceSignal Watch Guard
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.6
Further details — not scored
Size96 MB3 MB
Age rating12+4+
DeveloperAnshika MauryaHacking Things LLC

In-app purchases

None

mDevice

No in-app purchases

None

Signal Watch Guard

No in-app purchases

Questions

Is mDevice free?
mDevice is free to download, with no in-app purchases.
Is Signal Watch Guard free?
Signal Watch Guard is free to download, with no in-app purchases.
Do mDevice or Signal Watch Guard have ads?
Neither mDevice nor Signal Watch Guard shows ads.
Which is updated more often, mDevice or Signal Watch Guard?
mDevice ships an update fortnightly, and Signal Watch Guard weekly. Most recently, mDevice was updated on October 30, 2026 and Signal Watch Guard on October 31, 2026.

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