nRF Device Firmware Update vs Carbon Oxtech
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
nRF Device Firmware Update
This application enables Over-The-Air Device Firmware Upgrade (OTA-DFU) for nRF5 devices using Bluetooth LE. It supports updating firmware in .zip format, prepared with the 'nrf util' tool.
- 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
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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).
Carbon Oxtech
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This app allows you to control your connected OxTech Gateways. Users can use the app to add Gateways and monitor gateway conditions in real time.
Screenshots
Verdict
The clearest difference is update cadence: Carbon Oxtech at every 3 months against nRF Device Firmware Update's every 9 months. nRF Device Firmware Update's advantage is chart position (#162 vs unranked). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
nRF Device Firmware Update ships an update every 9 months, Carbon Oxtech every 3 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.
| Parameter | nRF Device Firmware Update | Carbon Oxtech |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (9 ratings) — better | — |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 9 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #162 — better | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 5 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Nordic Semiconductor ASA | Oxit |
In-app purchases
nRF Device Firmware Update
No in-app purchases
Carbon Oxtech
No in-app purchases
Questions
Is nRF Device Firmware Update free?
Is Carbon Oxtech free?
Do nRF Device Firmware Update or Carbon Oxtech have ads?
Which is updated more often, nRF Device Firmware Update or Carbon Oxtech?
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