Comparison

IoT OnOff 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

IoT OnOff

Monitor and control your Internet of Things projects with this app. It offers interactive widgets for data presentation and in-app configuration. Supports JSON formatted MQTT messages and includes a demo configuration for immediate use.

Highlights
  • Interactive widgets for IoT data
  • In-app configuration
  • JSON formatted MQTT message handling
  • Customizable themes
  • Multiple dashboards
  • Auto reconnect to MQTT broker
  • Topic builder with autocomplete
Features
Read full description

Monitor and control your Internet Of Things (IoT) projects with this app. Everything can be configured inside the app. The app is preconfigured with a demo configuration so that you experience the simplicity directly after the install. (Tip: use two devices to see and feel the speed of the app.) Optionally, JSON formatted MQTT messages can be handled. We designed smart interactive widgets (controls) so your IoT data will be presented nice and smooth. Under the MQTT broker settings menu we have foreseen a list with public available MQTT brokers. We are not responsible for the availability of these brokers. If the default broker is not active, please select another one of the list or configure your own. Features: * Nice set of widgets * In-app configuration * Theme support * Customisable themes, locally and remote * Auto reconnect to MQTT broker * Native TCP sockets & WebSockets * Client support for topic filters with wildcards * Grid layout with rearrange support * Multiple dashboards * High performance * JSON parser (optionally) * Backup / restore (optionally) * Export / import (optionally) * Export / import single widget from one device to another (optionally) * Copy and move widgets from one dashboard to another * Topic builder with autocomplete * Manage list of MQTT brokers * E-mail support * GDPR compliant No advertising in the app. Have fun!

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

IoT OnOff4 screens
Bluetooth BLE Device Finder4 screens

Verdict

The call

The clearest difference is rating: Bluetooth BLE Device Finder at 4.4 against IoT OnOff's 3.5. Bluetooth BLE Device Finder also leads on ratings volume (27K vs 14). IoT OnOff's advantage is update cadence (every 3 weeks vs every 2 months) and review sentiment (48% vs 39%). 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. IoT OnOff sells 3 one-off in-app purchases and Bluetooth BLE Device Finder sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Bluetooth BLE Device Finder holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: Bluetooth BLE Device Finder has 27K ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 48% of IoT OnOff's written reviews are positive against 39% of Bluetooth BLE Device Finder's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

IoT OnOff ships an update every 3 weeks, Bluetooth BLE Device Finder every 2 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
IoT OnOff versus Bluetooth BLE Device Finder: the parameters behind the verdict, then further details
ParameterIoT OnOffBluetooth BLE Device Finder
PriceFreeFree
Rating3.5 (14 ratings)4.4 (27K ratings) — better
Positive reviews48.5% of reviews — better39.0% of reviews
Number of ratings1427K — better
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size19 MB3 MB
Age rating4+4+
DeveloperKris Van HoyeRaymond NG

Customer experience

IoT OnOff

All ratings14 ratings
Positive57.1%
Neutral14.3%
Negative28.6%
Written reviews66 reviews
Positive48.5%
Neutral21.2%
Negative30.3%

Bluetooth BLE Device Finder

All ratings27,302 ratings
Positive84.0%
Neutral4.3%
Negative11.8%
Written reviews292 reviews
Positive39.0%
Neutral3.4%
Negative57.5%

User reviews

IoT OnOff

From 14 App Store ratings

What we love

  • 👍 Works well with MQTT
  • 🚀 Fast and responsive GUI
  • 👍 Configurable interface
  • 👍 Good for prototyping
  • 👍 Works with local brokers

Room to improve

  • 🐛 Inconsistent responsiveness
  • 🐛 UI issues on modern iPhones
  • 🐛 Buttons hard to tap
  • 🐛 Graph widgets limited
  • 🐛 Lacks documentation

Bluetooth BLE Device Finder

From 27K App Store ratings

What we love

  • 🚀 Accurately locates lost devices
  • 👍 Helpful for finding misplaced items
  • 🔍 Effective at tracking Bluetooth signals
  • 💡 Useful for finding lost AirPods, Fitbits, and other Bluetooth devices

Room to improve

  • 💰 Mandatory subscription/premium version required for full functionality
  • 🤔 Difficulty distinguishing between unknown Bluetooth devices
  • 🤷‍♀️ Inconsistent or inaccurate distance/signal strength readings
  • 🙄 Constant prompts to upgrade to premium version

Bugs and requests

IoT OnOff

Reported bugs

55 issues
  • Icons sometimes not working
  • App does not respond to screen clicks
  • Cannot save groups or add items
  • Storage Manager does not see saved configs
  • Interface forces users to keep tapping
Show 50 more
  • App does not account for screen island
  • Restore data not found after reinstall
  • Graph widgets only update when app is in foreground
  • Menu buttons too close to corners
  • Buttons too close to top/corners of screen
  • App regularly locks up
  • App crashes when trying to connect to broker
  • JSON with underscore character results in unknown
  • Buttons at top/bottom don't work
  • Top/bottom controls don't work
  • Cannot subscribe to anything
  • Back button on subscribe UI does not react
  • App is buggy and moody about connecting to MQTT
  • Connection status message blinks on and off
  • Does not update button status if commanded locally
  • Stopped connecting to MQTT server
  • JSON converter does not convert numbers correctly
  • Cannot connect to broker anymore
  • Cannot configure iPhone XR
  • Buttons by the notch require multiple taps
  • Cannot add topic in settings
  • Keyboard does not appear on input field
  • Cannot connect to CloudMQTT
  • App tries to subscribe to a fixed topic
  • Does not get messages when subscribing
  • Errors appear at the server when editing dashboard while connected
  • Seems incompatible with Thingspeak.com broker
  • No log message for connection struggles
  • App bombard network with Google Analytics requests
  • Not working on iOS 9.3.5
  • App lost configuration by closing the app
  • Cannot connect to my broker
  • Controls at the top of the screen are hard to interact with
  • Does not connect to broker
  • UI issues on modern iPhones
  • Buttons hard to tap
  • Restore data not working
  • JSON parsing issues
  • App crashes
  • Not working on latest iOS
  • Does not update when in background
  • Family sharing not working
  • Tracking in app
  • Incompatible with some brokers
  • Lacks instructions
  • Does not display all data
  • Automatic updates limited
  • Lost configuration
  • Not connecting to broker
  • Few widgets available

Requested features

14 requests
  • Add shortcuts for voice commands
  • Add momentary push button widget
  • Add more colorful widgets
  • Add datalogger widget
  • Add ability to connect to multiple brokers simultaneously
Show 9 more
  • Add notifications when changing topic
  • Add support for Russian language
  • Add option to select number of switches and their labels
  • Add ability to extract specific bits from data
  • Add joystick control widget
  • Add large light display and control widget
  • Add percentage value for blinds
  • Add simple animated pictogram
  • Add X/Y control widget

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

3 purchases

IoT OnOff

One-time3
  • Premium edition$2.99
  • JSON parser$2.99
  • Storage Manager$2.99
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 IoT OnOff free?
IoT OnOff is free to download, with in-app purchases available.
Is Bluetooth BLE Device Finder free?
Bluetooth BLE Device Finder is free to download, with in-app purchases available.
Which has better reviews, IoT OnOff or Bluetooth BLE Device Finder?
Bluetooth BLE Device Finder is rated higher. IoT OnOff averages 3.5 out of 5 from 14 ratings, while Bluetooth BLE Device Finder averages 4.4 from 27K ratings.
Do IoT OnOff or Bluetooth BLE Device Finder have ads?
Neither IoT OnOff nor Bluetooth BLE Device Finder shows ads.
Which is updated more often, IoT OnOff or Bluetooth BLE Device Finder?
IoT OnOff ships an update every 3 weeks, and Bluetooth BLE Device Finder every 2 months. Most recently, IoT OnOff was updated on October 24, 2026 and Bluetooth BLE Device Finder on October 30, 2026.

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