# nRF Device Firmware Update vs Nexalis Flash

The clearest difference is chart position: nRF Device Firmware Update at #123 against Nexalis Flash's unranked. Nexalis Flash's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | nRF Device Firmware Update | Nexalis Flash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.2 (9 ratings)](https://appshunter.io/ios/app/nrf-device-firmware-update/id1624454660/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | — |
| Monetization | Free | — |
| Best chart rank | **#123** | — |
| Size | 5 MB | 18 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nordic Semiconductor ASA](https://appshunter.io/developer/497679114) | [Nexalis LLC](https://appshunter.io/developer/6782400072) |

## What reviewers say

### nRF Device Firmware Update

[App page](https://appshunter.io/ios/app/nrf-device-firmware-update/id1624454660)

**Currently charting:** #123 Top Free · Developer Tools (US App Store)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### Nexalis Flash

[App page](https://appshunter.io/ios/app/nexalis-flash/id6782400070)

**In-app purchases:** none


## Frequently asked questions

### Is nRF Device Firmware Update free?

nRF Device Firmware Update is free to download, with no in-app purchases.

### Is Nexalis Flash free?

Nexalis Flash is free to download, with no in-app purchases.

### Do nRF Device Firmware Update or Nexalis Flash have ads?

Neither nRF Device Firmware Update nor Nexalis Flash shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*