Comparison

nRF Connect for Mobile vs bmLogger

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

Head to head
About

nRF Connect for Mobile

This app is a versatile tool for scanning, exploring, and communicating with Bluetooth Low Energy devices. It also enables your device to act as a peripheral and supports firmware updates for compatible devices.

Highlights
  • Scan and discover Bluetooth LE peripherals
  • Communicate with Bluetooth LE devices
  • Advertise as a Bluetooth LE peripheral
  • Update compatible device firmware (DFU)
  • Filter scanned peripherals
  • Live RSSI chart
  • Log BLE function calls
Read full description

nRF Connect is a powerful generic tool that allows you to scan and explore your Bluetooth Low Energy (henceforth Bluetooth LE, also called Bluetooth Version 4.0+ of the Bluetooth specification) devices and communicate with them. nRF Connect also allows your iOS device to advertise as a peripheral, with full support of many of Bluetooth SIG adopted profiles. Additionally, nRF Connect supports Nordic Semiconductor’s Device Firmware Update profile (DFU) capabilities, allowing you to update compatible peripherals! + Features: • Supports DFU on all Nordic Semiconducto-powered devices. • Supports Nordic Thingy™ from Nordic Semiconductor. • Scan and discover nearby Bluetooth LE peripherals. • Filter Scanned Peripherals by Name, Manufacturer, Services (Advertised & Connected) and RSSI Level. • Parsing Multiple Formats of Bluetooth LE Advertisement Data. • Live RSSI Chart of Scanned Bluetooth LE Peripherals. • Complete iPad Support, including Multi-Tasking and Mouse Support as of 13.4. • Logs: Including BLE Function calls, and Export Function as CSV and Text. • Privacy-Oriented: Full-Disclosure of Scanned Data, Advertised Data, and User-Performed Actions held by nRF Connect. • Connecting to Any Connectable Bluetooth LE Smart Device. • Discovery of Services, Characteristics and Descriptors. • Read and Write Characteristics and Descriptors. • Enable and Disable Notifications and Indications. • Advertising as a Bluetooth LE Peripheral. • Setting up a Bluetooth LE (Peripheral) Server and Notifying/Indicating back to connected Central(s). • Low-Fat: nRF Connect for iOS is Very Small, so You Can Always Keep Us With You! >= Requirements: • iOS 16.0 and above. - Notes: nRF Connect also works with our Development Kits, which you may acquire online here: https://www.nordicsemi.com/eng/buy-online

About

bmLogger

This app connects to Bluetooth sensors to provide real-time temperature and humidity monitoring. It allows for data logging, historical analysis, and customizable alerts for various environmental conditions. Ideal for cold chain compliance, food safety, and climate control.

Highlights
  • Real-time temperature and humidity readings
  • Data logging and historical graphs
  • CSV data export
  • Multiple sensor connection
  • Customizable alerts
  • Offline functionality
Features
Read full description

Connect to Blue Maestro Bluetooth sensors for real-time environmental monitoring. Perfect for cold chain compliance, food safety, and climate control. Description: bmLogger is the official companion app for Blue Maestro's professional-grade Bluetooth temperature and humidity sensors. Whether you're monitoring cold storage, tracking pharmaceutical shipments, or ensuring optimal conditions in your wine cellar, bmLogger delivers precise, reliable data right to your smartphone. KEY FEATURES Real-Time Monitoring Live temperature and humidity readings updated every second Signal strength indicator for connection quality Battery level monitoring for all connected devices Data Logging and History Download thousands of logged data points from your sensors View detailed graphs with zoom and pan functionality Export data as CSV files for analysis and compliance reporting Device Management Connect to multiple Blue Maestro sensors simultaneously Customize device names and add notes for easy identification Configure logging intervals from 1 second to 24 hours Set high and low temperature and humidity alerts Cloud Sync (Premium) Securely store your data in the cloud Access historical readings from any device Share reports with colleagues and clients PERFECT FOR Food Safety: Monitor refrigerators, freezers, and cold storage Healthcare: Track vaccine storage and medication temperatures Wine and Beverage: Ensure optimal cellar conditions Pharmaceuticals: Maintain cold chain compliance Data Centers: Monitor server room climate Agriculture: Track greenhouse conditions Home: Monitor any environment that matters to you Logistics: Track shipment conditions in transit SUPPORTED DEVICES Tempo Disc Temperature and Humidity Sensor Tempo Disc Temperature Sensor Tempo Disc Barometric Pressure Sensor Pacif-i Smart Thermometer And all current Blue Maestro Bluetooth sensors TECHNICAL SPECIFICATIONS Supports devices with logging capacities up to 100,000+ readings Configurable logging intervals Bluetooth Low Energy for extended battery life Works offline - no internet required for local monitoring Download bmLogger today and take control of your environmental monitoring with professional-grade precision. Keywords: temperature,humidity,sensor,bluetooth,monitoring,logger,thermometer,cold chain,data logger,climate What's New in Version 13.0.1: Improved calibration handling for latest generation sensors Enhanced data export functionality Performance optimizations Bug fixes and stability improvements

Screenshots

nRF Connect for Mobile4 screens
bmLogger4 screens

Verdict

The call

The clearest difference is rating: bmLogger at 5.0 against nRF Connect for Mobile's 4.5. bmLogger also leads on update cadence (every 3 days vs every 5 weeks) and review sentiment (100% vs 71%). nRF Connect for Mobile's advantage is ratings volume (472 vs 4). 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.

ReceptionRating · Positive reviews · Number of ratings

bmLogger holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: nRF Connect for Mobile has 472 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 71% of nRF Connect for Mobile's written reviews are positive against 100% of bmLogger's.

UpkeepUpdate frequency

nRF Connect for Mobile ships an update every 5 weeks, bmLogger every 3 days. The most recent releases landed on October 20, 2026 and October 4, 2026 respectively.

Scorecard5 real differences · 5 level
nRF Connect for Mobile versus bmLogger: the parameters behind the verdict, then further details
ParameternRF Connect for MobilebmLogger
PriceFreeFree
Rating4.5 (472 ratings)5.0 (4 ratings) — better
Positive reviews70.7% of reviews100.0% of reviews — better
Number of ratings472 — better4
Update frequencyEvery 5 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.014.0 — better
Further details — not scored
Size15 MB42 MB
Age rating4+4+
DeveloperNordic Semiconductor ASABlue Maestro

Customer experience

nRF Connect for Mobile

All ratings466 ratings
Positive85.2%
Neutral6.7%
Negative8.2%
Written reviews239 reviews
Positive70.7%
Neutral8.4%
Negative20.9%

bmLogger

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

nRF Connect for Mobile

Reported bugs

4 issues
  • Can't read data from Bluetooth device
  • Tries to ask for Bluetooth connection when Bluetooth is off. Asks to connect to devices when Bluetooth is off. Who knows what this app is doing in the background without permission?! What ever it is , it ain't good
  • Tapping "tabs" doesn't work (nothing changes in the UI). To get some response from tapping UI controls typically requires (a) launching nRF Connect, (b) switching to another app, (c) switching back to nRF Connect. I've tried uninstalling and re-downloading. Same result. This used to be the bee's knees of BLE tools but it's only worth 1 star at the moment (v2.7.11).
  • Cant go past the initial announcement. The app is unresponsive to the taps.

Requested features

4 requests
  • Where's the mac addresses
  • Max rssi limit
  • Log view
  • We need macros in iOS version

bmLogger

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

nRF Connect for Mobile

No in-app purchases

None

bmLogger

No in-app purchases

Questions

Is nRF Connect for Mobile free?
nRF Connect for Mobile is free to download, with no in-app purchases.
Is bmLogger free?
bmLogger is free to download, with no in-app purchases.
Which has better reviews, nRF Connect for Mobile or bmLogger?
bmLogger is rated higher. nRF Connect for Mobile averages 4.5 out of 5 from 472 ratings, while bmLogger averages 5.0 from 4 ratings.
Do nRF Connect for Mobile or bmLogger have ads?
Neither nRF Connect for Mobile nor bmLogger shows ads.
Which is updated more often, nRF Connect for Mobile or bmLogger?
nRF Connect for Mobile ships an update every 5 weeks, and bmLogger every 3 days. Most recently, nRF Connect for Mobile was updated on October 20, 2026 and bmLogger on October 4, 2026.

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