Comparison

M2B vs BlueSpot Finder

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

Head to head
About

M2B

This application allows remote control of a GSM alarm system for home security. It enables arming, disarming, monitoring, and intercom functions via phone, offering a comprehensive DIY security solution.

Highlights
  • Remote control of GSM alarm system
  • Arm and disarm functions
  • Zone programming (real-time, delay, 24 hours)
  • Phone and SMS alerts
  • Voice prompt for operations
  • Built-in artificial intelligent English message
Features
Read full description

Wolf-Guard from China, since year 1998, for the global security market. Wolf-Guard provide all kinds of DIY home security products. Wolf-Guard "All For Your Security" This APP can help you remotely control Wolf-Guard M2B GSM Alarm System. Help you protect your housing! M2B specifications: 1. 7 wired and 99 wireless defense zones; 2. LCD screen with time clock display; 3. 3 groups of timely arm and disarm; 4. Call 6 phones and send SMS to 3 numbers; 5. 10-second automatic message recording; 6. Voice prompt for main unit & remote operations; 7. Built-in artificial intelligent English message; 8. The main unit can be used as a telephone; 9. Arm, disarm, monitor, and intercom by phone; 10. Real-time, Delay, 24 hours, Bypass defense zones program; 11. One-key-control: all the settings can be finished by keypad;

About

BlueSpot Finder

Easily locate lost Bluetooth devices like headphones, speakers, and trackers. Simply scan for nearby devices and follow the proximity meter, haptic feedback, and optional audio cues to find your lost items quickly. Works offline with no accounts or ads.

Highlights
  • Scan for nearby Bluetooth devices
  • Real-time proximity meter
  • Haptic and audio guidance
  • Works offline
  • No accounts or ads
  • Favorites for frequently lost items
Read full description

Tap Scan. BlueSpot lists every nearby Bluetooth device — AirPods, headphones, speakers, watches, fitness trackers — and shows which one is closest. Pick the one you've lost, then watch the number climb from "Far" to "Getting warm" to "Very close" with every step you take. Haptic pulses and optional beeps confirm when you're on top of it. No accounts. No subscriptions. No ads. Nothing to set up. Open the app, tap Scan, and find your stuff in seconds. WHAT YOU CAN FIND • AirPods, AirPods Pro, AirPods Max • Beats, Sony, Bose, Jabra, and other wireless headphones • Bluetooth speakers (HomePod, JBL, Sonos, Bose Soundlink) • Fitness trackers (Fitbit, Whoop, Amazfit, Oura, Mi Band) • Apple Watch, Garmin, Galaxy Watch • Any Bluetooth LE device broadcasting a name HOW IT WORKS BlueSpot reads radio signal strength (RSSI) from nearby Bluetooth devices. Stronger signal = closer. A built-in filter smooths out the noise so you see a steady 0-to-100 proximity score instead of jumpy numbers, and haptic and audio alerts let you know when you've nailed it. This is proximity tracking, not GPS. BlueSpot tells you whether you're getting closer or farther — perfect for "I know it's in this room somewhere" moments. It is not a replacement for location-based tracking services. WHY PEOPLE LIKE IT • Instant scan — every nearby Bluetooth device, in seconds • Auto-categorized — AirPods, headphones, watches, speakers, and trackers grouped for you • Smooth proximity meter — real-time 0-to-100, no wild jumps • Haptic guidance — your phone pulses faster as you get closer • Audio cues — optional beeps that speed up near the target • Favorites — pin the devices you lose most so they're one tap away next time • Adjustable alert threshold — tune the "found it!" trigger • Full dark mode • Works offline — no internet required • No signup — open and go PRIVACY FIRST BlueSpot collects nothing. No analytics, no cloud, no accounts, no ads. Everything happens on your device. Your scans never leave your phone. Full privacy policy: https://apps.builtfastai.com/bluespot/privacy COMPATIBLE DEVICES BlueSpot requires iOS 17 or later and Bluetooth LE hardware (iPhone 5s and newer). It works with any Bluetooth Low Energy device advertising a name, even unpaired ones. Devices that aren't actively broadcasting (a closed AirPods case, a powered-off speaker) cannot be detected. SUPPORT Email nate@builtfastai.com — we read every message.

Screenshots

M2B3 screens
BlueSpot Finder4 screens

Verdict

The call

The clearest difference is review sentiment: BlueSpot Finder at 100% against M2B's 0%. M2B's advantage is iOS requirement (10.0 vs 17.0). On price, ads, in-app purchases and monetization model 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.

Scorecard2 real differences · 8 level
M2B versus BlueSpot Finder: the parameters behind the verdict, then further details
ParameterM2BBlueSpot Finder
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—2 — better
Update frequencyEvery 65 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS10.0 — better17.0
Further details — not scored
Size9 MB1 MB
Age rating4+4+
Developer剑 熊NATHANAEL LOUIS SCHNELL

Customer experience

M2B

Written reviews4 reviews
Positive0.0%
Neutral25.0%
Negative75.0%

BlueSpot Finder

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

M2B

No in-app purchases

None

BlueSpot Finder

No in-app purchases

Questions

Is M2B free?
M2B is free to download, with no in-app purchases.
Is BlueSpot Finder free?
BlueSpot Finder is free to download, with no in-app purchases.
Do M2B or BlueSpot Finder have ads?
Neither M2B nor BlueSpot Finder shows ads.

Other comparisons