# nRF Toolbox vs Crazyflie 2

The clearest difference is rating: Crazyflie 2 at 3.7 against nRF Toolbox's 2.6. Crazyflie 2 also leads on review sentiment (50% vs 22%) and iOS requirement (12.0 vs 18.0). nRF Toolbox's advantage is update cadence (every 5 weeks vs every 13 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Crazyflie 2 holds the better App Store score, 3.7 against 2.6. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews point the same way: 22% of nRF Toolbox's written reviews are positive against 50% of Crazyflie 2's.

nRF Toolbox ships an update every 5 weeks, Crazyflie 2 every 13 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | nRF Toolbox | Crazyflie 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (8 ratings)](https://appshunter.io/ios/app/nrf-toolbox/id820906058/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/crazyflie-2/id946151480/reviews)** |
| Number of ratings | **8** | 3 |
| Positive reviews | 22.2% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 13 months |
| Monetization | Free | Free |
| Size | 9 MB | 8 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nordic Semiconductor ASA](https://appshunter.io/developer/497679114) | [Bitcraze](https://appshunter.io/developer/946151479) |

## What reviewers say

### nRF Toolbox

[App page](https://appshunter.io/ios/app/nrf-toolbox/id820906058)

This utility app connects to various Bluetooth Low Energy accessories. It demonstrates multiple BLE profiles, including health and fitness sensors, allowing users to monitor data from devices like heart rate monitors and glucose monitors.

**Highlights:** Bluetooth Low Energy connectivity, Demonstrates BLE profiles, Heart Rate Monitor support, Glucose Monitor support, Cycling Speed and Cadence, Running Speed and Cadence

**In-app purchases:** none


### Crazyflie 2

[App page](https://appshunter.io/ios/app/crazyflie-2/id946151480)

Control a palm-sized, open-source quadcopter directly from your iOS device. Utilize on-screen joysticks or phone tilting for flight. Customize control sensitivity and modes, and update the drone's firmware.

**Highlights:** Bluetooth low energy connectivity, On-screen joystick controls, Phone tilting flight control, Configurable control sensitivity, Configurable control modes, Firmware updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is nRF Toolbox free?

nRF Toolbox is free to download, with no in-app purchases.

### Is Crazyflie 2 free?

Crazyflie 2 is free to download, with no in-app purchases.

### Which has better reviews, nRF Toolbox or Crazyflie 2?

Crazyflie 2 is rated higher. nRF Toolbox averages 2.6 out of 5 from 8 ratings, while Crazyflie 2 averages 3.7 from 3 ratings.

### Do nRF Toolbox or Crazyflie 2 have ads?

Neither nRF Toolbox nor Crazyflie 2 shows ads.

### Which is updated more often, nRF Toolbox or Crazyflie 2?

nRF Toolbox ships an update every 5 weeks, and Crazyflie 2 every 13 months. Most recently, nRF Toolbox was updated on October 16, 2026 and Crazyflie 2 on October 14, 2026.

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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.*