Comparison

nRF Connect for Mobile vs Device MI

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

Device MI

Features
Read full description

Testing for triage and grading of devices made easy, quick and accurate.

Screenshots

nRF Connect for Mobile4 screens
Device MI3 screens

Verdict

The call

The clearest difference is update cadence: Device MI at every 2 days against nRF Connect for Mobile's monthly. Device MI also leads on iOS requirement (9.0 vs 17.0). 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

nRF Connect for Mobile ships an update monthly, Device MI every 2 days. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 8 level
nRF Connect for Mobile versus Device MI: the parameters behind the verdict, then further details
ParameternRF Connect for MobileDevice MI
PriceFreeFree
Rating4.5 (455 ratings) — better—
Positive reviews70.7% of reviews—
Number of ratings455 — better—
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.09.0 — better
Further details — not scored
Size18 MB14 MB
Age rating4+4+
DeveloperNordic Semiconductor ASAFutureDial Inc.

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

Device MI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

nRF Connect for Mobile

No in-app purchases

None

Device MI

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 Device MI free?
Device MI is free to download, with no in-app purchases.
Do nRF Connect for Mobile or Device MI have ads?
Neither nRF Connect for Mobile nor Device MI shows ads.
Which is updated more often, nRF Connect for Mobile or Device MI?
nRF Connect for Mobile ships an update monthly, and Device MI every 2 days. Most recently, nRF Connect for Mobile was updated on September 23, 2026 and Device MI on September 13, 2026.

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