Comparison

DataLogger vs Bluetooth BLE Device Finder

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

Head to head
About

DataLogger

Control MSR data loggers from your mobile device. Configure loggers, view sensor data in real-time, and upload recordings to the cloud. Connects to multiple loggers via Bluetooth Low Energy.

Highlights
  • Control MSR data loggers
  • Configure logger settings
  • View sensor data online
  • Record sensor data
  • Upload data to MSR Smart Cloud
  • Connect via Bluetooth Low Energy (BLE)
Features
Read full description

This application enables mobile devices to control MSR data loggers. It provides logger configuration and viewing online and record sensor data. Record data can be uploaded to MSR Smart Cloud. The mobile device connects to multiple loggers using Bluetooth Low Energy (BLE).

About

Bluetooth BLE Device Finder

Quickly locate misplaced Bluetooth devices using signal strength and a radar interface. Track devices in the background and receive notifications when they are lost, with the last known location recorded on a map.

Highlights
  • Find lost Bluetooth devices
  • Track devices in the background
  • Receive disconnection notifications
  • View last detected time and location
  • Use radar interface for proximity
  • Show signal strength and estimated distance
  • Display BLE device details
Features
Read full description

*** Now you can find your lost Bluetooth device quickly, before its battery runs out! *** This app can help you Find Your Lost AirPods, iPhone, iPad, AirTag, Apple Watch, and many other Bluetooth devices in seconds. Use it when you or your family misplace the device – and save the money you'd otherwise need to spend on a new one! HOW TO USE IT: 1. Run the app. Find and select your lost device in the list. 2. Move around slowly and keep watching the data (i.e., the signal strength and estimated distance) on the radar screen. When you get close to your lost device, the spot will turn red on the radar screen. 3. When the signal strength is over 90 and the estimated distance is 0 - 0.5m, look around. Your device won't be far away! Note: When you try to find your device, please walk slowly and watch the radar carefully. Find your device ASAP, or its battery will run out. Note: Your Bluetooth device must be powered on and within a detectable range. TRACKING FUNCTION: You may enable tracking for devices in the background by turning on the switch next to the device on the list. You will receive a notification when your tracked device is disconnected/lost. The application will ping the tracked devices from time to time and remember the last location and time the device was seen. KEY FEATURES: • Find your lost Bluetooth device (with BLE signal advertising). The app is easy to use! • Track your device constantly in the background with this app. A notification will tell you when your tracked device is 'Lost' (i.e., Disconnected). Also, the last detected time and location will be recorded for you. It's very useful when you’re travelling and want to keep your devices safe. ^ • Find your device using our radar. It's fun! No need to read a manual. ^ • Show hints, signal strength and the estimated distance between you and your lost device to help you find it quickly. ^ • Show the last seen (detected) time and last known location of your lost device on a map. ^ • Show your device's BLE (Bluetooth Low Energy) details such as UUID, RSSI, Services, etc. ^ • The following devices can be found/tracked by this app: - AirPods 1/2/3/4, AirPods Pro 1/2, AirPods Max - AirTag - iPhone 5/6/7/8/X/11/12/13/14/15/16, iPad 3/4/5/6/7/8/9/10/A16, iPad mini 2/3/4/5/6/A17Pro, iPad Air 1/2/3/4/5/M2/M3, iPad Pro 1/2/3/4/5/6/M4, iPod Touch 6/7 - Apple Watch Series 1/2/3/4/5/6/7/8/9/10/SE1/SE2/Ultra1/Ultra2 - Apple Pencil 1/2/Pro - MacBook, MacBook Air, MacBook Pro, iMac, iMac Pro, Mac Pro, Mac Mini, Mac Studio - Microsoft Gear, Band 1 & 2 - Samsung Earbuds, Galaxy Watch - JBL Tune, Vibe, Tour Pro, Charge, Flip 3 - Bellabeat Leaf - Garmin Watches - Many other Bluetooth headphones, earphones, and speakers (e.g. Bose, Sony, Google, Jabra, Logitech, Anker, Sennheiser, Technics, etc.) NOTE: The app can locate any BLE (Bluetooth Low Energy) device that is broadcasting a Bluetooth signal. ^ Requires In-App Purchase. Please contact support if you need help. Thank you! Privacy Policy: http://www.99mobileapp.com/pp.html Terms: http://www.99mobileapp.com/terms/index.html

Screenshots

DataLogger4 screens
Bluetooth BLE Device Finder4 screens

Verdict

The call

The clearest difference is rating: Bluetooth BLE Device Finder at 4.4 against DataLogger's 2.0. Bluetooth BLE Device Finder also leads on review sentiment (39% vs 0%) and ratings volume (27K vs 3). DataLogger's advantage is in-app purchases (none vs 4). 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. Bluetooth BLE Device Finder sells 4 in-app purchases, starting at $3.99 per 7 days. DataLogger asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bluetooth BLE Device Finder holds the better App Store score, 4.4 against 2.0. That said, the two scores are not equally well evidenced: Bluetooth BLE Device Finder has 27K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of DataLogger's written reviews are positive against 39% of Bluetooth BLE Device Finder's.

UpkeepUpdate frequency

DataLogger ships an update every 4 months, Bluetooth BLE Device Finder every 2 months. The most recent releases landed on June 1, 2026 and September 25, 2026 respectively.

Scorecard6 real differences · 4 level
DataLogger versus Bluetooth BLE Device Finder: the parameters behind the verdict, then further details
ParameterDataLoggerBluetooth BLE Device Finder
PriceFreeFree
Rating2.0 (3 ratings)4.4 (27K ratings) — better
Positive reviews0.0% of reviews39.2% of reviews — better
Number of ratings327K — better
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size1 MB3 MB
Age rating4+4+
DeveloperMSR Electronics GmbHRaymond NG

Customer experience

DataLogger

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bluetooth BLE Device Finder

All ratings27,087 ratings
Positive84.1%
Neutral4.3%
Negative11.7%
Written reviews288 reviews
Positive39.2%
Neutral3.5%
Negative57.3%

Bugs and requests

DataLogger

Not enough reviews yet to summarise bugs or requests.

Bluetooth BLE Device Finder

Reported bugs

3 issues
  • Unable to detect certain Bluetooth devices like Apple Pencil
  • App crashes or freezes on some devices
  • Persistent pairing requests from unknown devices

Requested features

4 requests
  • Ability to name/label Bluetooth devices
  • Option to use feet/yards instead of meters
  • Improved device filtering and organization
  • More precise tracking and direction indicators

In-app purchases

None

DataLogger

No in-app purchases

4 purchases

Bluetooth BLE Device Finder

Subscriptions3
  • One Week Premium$3.997 Days
  • One Month Premium$9.991 Month
  • One Year Premium$14.991 Year
One-time1
  • Lifetime Premium$19.99

Questions

Is DataLogger free?
DataLogger is free to download, with no in-app purchases.
Is Bluetooth BLE Device Finder free?
Bluetooth BLE Device Finder is free to download, with in-app purchases available.
Which has better reviews, DataLogger or Bluetooth BLE Device Finder?
Bluetooth BLE Device Finder is rated higher. DataLogger averages 2.0 out of 5 from 3 ratings, while Bluetooth BLE Device Finder averages 4.4 from 27K ratings.
Do DataLogger or Bluetooth BLE Device Finder have ads?
Neither DataLogger nor Bluetooth BLE Device Finder shows ads.
Which is updated more often, DataLogger or Bluetooth BLE Device Finder?
DataLogger ships an update every 4 months, and Bluetooth BLE Device Finder every 2 months. Most recently, DataLogger was updated on June 1, 2026 and Bluetooth BLE Device Finder on September 25, 2026.

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