# nRF Device Firmware Update

> Update nRF5 device firmware wirelessly via Bluetooth LE. (iPhone/iPad app by Nordic Semiconductor ASA.)

- Source: https://appshunter.io/ios/app/nrf-device-firmware-update/id1624454660 (this page in markdown: same URL + `.md`)
- Developer: [Nordic Semiconductor ASA](https://appshunter.io/developer/497679114)
- Category: Developer Tools
- Price: Free
- Rating: 2.70/5 from 9 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 5 MB
- Languages: American English
- Released: 2022-06-17
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/nrf-device-firmware-update/id1624454660/reviews.md

## What is nRF Device Firmware Update?

The nRF5x Series chips are flash-based SoCs, and as such they represent the most flexible solution available. A key feature of the nRF5x Series and their associated software architecture and S-Series SoftDevices is the possibility for Over-The-Air Device Firmware Upgrade (OTA-DFU) over Bluetooth LE.

The DFU application allows to update nRF5 devices using Secure or Legacy DFU bootloader from nRF5 SDK version 4.3 or newer. 
The firmware should be in .zip file format, prepared using "nrf util" (https://github.com/NordicSemiconductor/pc-nrfutil).

## Key features

- Over-The-Air Device Firmware Upgrade (OTA-DFU)
- Bluetooth LE connectivity
- Supports nRF5x Series chips
- Updates Secure or Legacy DFU bootloaders
- Requires .zip firmware format
- Uses 'nrf util' for firmware preparation

## Chart rankings

- #118 in Top Free · Developer Tools (US App Store)

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/nrf-device-firmware-update/id1624454660/reviews.md

### 2/5 — Unreliable

*2024-08-20*

I have only successfully used this once, every other time I have gone to update one of my Meshtastic nodes it fails and locks it out. You then have to plug the node into your computer to update it that way. This becomes a problem when you have a solar node on your roof…

### 4/5 — Does work

*2024-06-18*

Works ok for me.
A strong Bluetooth connection helps.

### 2/5 — Buggy

*2024-04-20*

Buggy app, seems to override other apps trying to connect to devices. Doesn’t allow you to put devices into DFU mode which would be very helpful.

### 1/5 — Can’t find RAK

*2024-03-05*

No worky

### 1/5 — Totally useless with new update

*2022-11-14*

This app used to scan for the Nordic DFU Service, which made it user friendly and very helpful. Now it shows all BLE devices and is completely useless.

## Frequently asked questions about nRF Device Firmware Update

### What is the primary function of nRF Device Firmware Update?

nRF Device Firmware Update allows for Over-The-Air Device Firmware Upgrade (OTA-DFU) for nRF5 devices using Bluetooth LE. This enables wireless updating of device firmware without needing a physical connection.

### What firmware format does nRF Device Firmware Update require?

The application requires the firmware to be in a .zip file format. This .zip file must be prepared using the 'nrf util' tool, which is available on GitHub.

### What versions of bootloaders does nRF Device Firmware Update support?

This DFU application supports updating both Secure and Legacy DFU bootloaders. It is compatible with firmware from nRF5 SDK version 4.3 or newer.

### What devices are compatible with nRF Device Firmware Update?

The app is designed for updating nRF5 devices, specifically those utilizing the nRF5x Series chips. It is available on iPhone and iPad.

### Is nRF Device Firmware Update free to use?

Yes, nRF Device Firmware Update is available for free. There are no in-app purchases or subscription fees associated with its use.

### Does nRF Device Firmware Update have ads?

No, nRF Device Firmware Update does not contain advertisements. The application is ad-free, providing an uninterrupted user experience.

### How often is nRF Device Firmware Update updated?

The latest version of nRF Device Firmware Update is 1.2, last updated on December 8, 2023. While specific update frequency isn't detailed, this indicates ongoing developer support.

### What is the user rating for nRF Device Firmware Update?

nRF Device Firmware Update has a user rating of 3.2 stars based on 6 ratings. This suggests a mixed reception among its current user base.

## Version history (last 5 releases)

### 1.3.1 — 2026-08-11

In this version we made minor changes to the app icon (glass effect) and buttons. That's all. Look better on iOS26+ now.

### 1.3 — 2026-08-10

This version fixes several minor bugs in the underlying DFU library.

### 1.2 — 2023-12-08

This version fixes minor UI issues.

### 1.1 — 2022-12-23

In this release we fixed several UI issues. The minimum supported iOS version has been set to iOS 16.0.

### 1.0 — 2022-06-17

No release notes.

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## More apps by Nordic Semiconductor ASA

- [nRF Toolbox](https://appshunter.io/ios/app/nrf-toolbox/id820906058)
- [nRF Beacons](https://appshunter.io/ios/app/nrf-beacons/id879614768)
- [nRF Connect for Mobile](https://appshunter.io/ios/app/nrf-connect-for-mobile/id1054362403)
- [Thingy:52](https://appshunter.io/ios/app/thingy52/id1187887000)
- [nRF Cloud Gateway](https://appshunter.io/ios/app/nrf-cloud-gateway/id1272181563)
- [nRF Blinky](https://appshunter.io/ios/app/nrf-blinky/id1325014347)

All apps by Nordic Semiconductor ASA: https://appshunter.io/developer/497679114

## Related topics

[nrf device firmware update](https://appshunter.io/ios/topics/nrf-device-firmware-update) · [dfu](https://appshunter.io/ios/topics/dfu) · [nrf dfu](https://appshunter.io/ios/topics/nrf-dfu) · [dfu nordic](https://appshunter.io/ios/topics/dfu-nordic) · [phywe firmware updater](https://appshunter.io/ios/topics/phywe-firmware-updater) · [krs firmware update](https://appshunter.io/ios/topics/krs-firmware-update) · [nrf toolbox](https://appshunter.io/ios/topics/nrf-toolbox) · [nrf connect device manager](https://appshunter.io/ios/topics/nrf-connect-device-manager) · [firmware](https://appshunter.io/ios/topics/firmware) · [nordic semiconductor](https://appshunter.io/ios/topics/nordic-semiconductor) · [nrf device manager](https://appshunter.io/ios/topics/nrf-device-manager) · [nrf](https://appshunter.io/ios/topics/nrf) · [firmware update tool](https://appshunter.io/ios/topics/firmware-update-tool) · [firmware update](https://appshunter.io/ios/topics/firmware-update) · [optiweigh firmware updater](https://appshunter.io/ios/topics/optiweigh-firmware-updater) · [nordic semiconductor asa](https://appshunter.io/ios/topics/nordic-semiconductor-asa) · [nrf connect for mobile](https://appshunter.io/ios/topics/nrf-connect-for-mobile) · [nrf connect](https://appshunter.io/ios/topics/nrf-connect) · [guardtec firmware updater](https://appshunter.io/ios/topics/guardtec-firmware-updater) · [smartvide firmware updater](https://appshunter.io/ios/topics/smartvide-firmware-updater)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*