nRF Connect for Mobile vs FixM4A
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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 descriptionHide 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
FixM4A
This utility tool aims to recover unplayable M4A audio files corrupted by truncation or damage. It extracts and converts available data from damaged files to restore them. Users select the corrupted file and a similar good file to initiate the repair process.
- Repair truncated M4A files
- Recover corrupted audio
- Extract data from damaged files
- Convert restored audio
- User-friendly repair process
Read full descriptionHide full description
This tool attempts to repair M4A audio files that are unplayable due to accidental truncation and corruption. It extracts and converts as much data as possible from the damaged audio to restore it. ⊙ How to use: 1. Select the 'Truncated M4A Audio' file. 2. Select a similar, good M4A audio file. 3. Click the 'Convert' button to begin the repair process.
Screenshots
Verdict
The clearest difference is in-app purchases: nRF Connect for Mobile at none against FixM4A's 1. FixM4A's advantage is update cadence (every 4 days vs every 5 weeks) and review sentiment (100% vs 71%). On price, ads 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
Both are free to download. FixM4A sells 1 one-off in-app purchase. nRF Connect for Mobile asks for nothing beyond the download.
nRF Connect for Mobile ships an update every 5 weeks, FixM4A every 4 days. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.
| Parameter | nRF Connect for Mobile | FixM4A |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (472 ratings) — better | — |
| Positive reviews | 70.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 472 — better | — |
| Update frequency | Every 5 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Nordic Semiconductor ASA | Newkline Co., Ltd. |
Customer experience
nRF Connect for Mobile
FixM4A
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
FixM4A
Not enough reviews yet to summarise bugs or requests.
In-app purchases
nRF Connect for Mobile
No in-app purchases
FixM4A
- Fix M4A$3.99
Questions
Is nRF Connect for Mobile free?
Is FixM4A free?
Do nRF Connect for Mobile or FixM4A have ads?
Which is updated more often, nRF Connect for Mobile or FixM4A?
Other comparisons
