nRF Toolbox vs Crazyflie 2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
nRF Toolbox
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.
- Bluetooth Low Energy connectivity
- Demonstrates BLE profiles
- Heart Rate Monitor support
- Glucose Monitor support
- Cycling Speed and Cadence
- Running Speed and Cadence
Read full descriptionHide full description
nRF Toolbox works with a wide range of Bluetooth Low Energy accessories. It contains applications demonstrating BLE profiles: Cycling Speed and Cadence, Running Speed and Cadence, Heart Rate Monitor, Blood Pressure Monitor, Health Thermometer, Glucose Monitor, Continuous Glucose Monitor, Monitoring & Diagnostic and more. The source code of this application is available on GitHub: https://github.com/nordicsemi/iOS-nRF-Toolbox
Crazyflie 2
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.
- Bluetooth low energy connectivity
- On-screen joystick controls
- Phone tilting flight control
- Configurable control sensitivity
- Configurable control modes
- Firmware updates
Read full descriptionHide full description
Control Crazyflie 2.x directly from your iOS device using Bluetooth low energy. The Crazyflie 2 is a flying open source development platform in the form of a palm sized quadcopter. The platform supports hardware expansions as well as advanced software features for development. This app requires a Crazylfie with a recent firmware. Firmware >= 2024.02 are compatible. Functionalities: - Connect to a Crazyflie 2.0 using BLE - Control a Crazyflie 2.0 using on-screen joysticks or by tilting the phone - Configurable control sensitivity - Configurable control mode - Update the Crazyflie firmware with latest version
Screenshots
Verdict
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.
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.
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.
| Parameter | nRF Toolbox | Crazyflie 2 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (8 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 22.2% of reviews | 50.0% of reviews — better |
| Number of ratings | 8 — better | 3 |
| Update frequency | Every 5 weeks — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Nordic Semiconductor ASA | Bitcraze |
Customer experience
nRF Toolbox
Crazyflie 2
In-app purchases
nRF Toolbox
No in-app purchases
Crazyflie 2
No in-app purchases
Questions
Is nRF Toolbox free?
Is Crazyflie 2 free?
Which has better reviews, nRF Toolbox or Crazyflie 2?
Do nRF Toolbox or Crazyflie 2 have ads?
Which is updated more often, nRF Toolbox or Crazyflie 2?
Other comparisons
