# Crazyflie 2 vs SunFounder Controller

The clearest difference is review sentiment: SunFounder Controller at 95% against Crazyflie 2's 50%. SunFounder Controller also leads on rating (4.4 vs 3.7) and update cadence (every 3 months vs every 13 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

SunFounder Controller holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: SunFounder Controller has 28 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 50% of Crazyflie 2's written reviews are positive against 95% of SunFounder Controller's.

Crazyflie 2 ships an update every 13 months, SunFounder Controller every 3 months. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Crazyflie 2 | SunFounder Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/crazyflie-2/id946151480/reviews) | **[4.4 (28 ratings)](https://appshunter.io/ios/app/sunfounder-controller/id1538719422/reviews)** |
| Number of ratings | 3 | **28** |
| Positive reviews | 50.0% of reviews | **94.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 8 MB | 92 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bitcraze](https://appshunter.io/developer/946151479) | [Shenzhen Maker Stars Technology Co., Ltd.](https://appshunter.io/developer/1422345349) |

## What reviewers say

### 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


### SunFounder Controller

[App page](https://appshunter.io/ios/app/sunfounder-controller/id1538719422)

This app acts as a virtual remote control for robot kits powered by ESP32 and Raspberry Pi. It offers customizable controls like radar ranging, tracking, sliders, buttons, and arrow keys for interactive robot operation.

**Highlights:** Virtual remote control, ESP32 and Raspberry Pi compatibility, Radar ranging control, Three-channel tracking, Customizable control layout, Sliders, buttons, and arrow keys

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Great app
- 👍 Useful
- 👍 Good functionality
- 👍 Powerful features

**What reviewers complain about**

- 🐛 Needs to be more stable
- 🐛 Needs to be more user-friendly
- 🐛 Disconnects and won't reconnect without reinstallation
- 🐛 Link button off-screen on iPhone XS Max

**Reported bugs**

- App disconnects and requires reinstallation to reconnect
- Link button is off-screen on iPhone XS Max

**Requested features**

- Add a list-box or radio-button widget class
- More warm functions


## Frequently asked questions

### Is Crazyflie 2 free?

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

### Is SunFounder Controller free?

SunFounder Controller is free to download, with no in-app purchases.

### Which has better reviews, Crazyflie 2 or SunFounder Controller?

SunFounder Controller is rated higher. Crazyflie 2 averages 3.7 out of 5 from 3 ratings, while SunFounder Controller averages 4.4 from 28 ratings.

### Do Crazyflie 2 or SunFounder Controller have ads?

Neither Crazyflie 2 nor SunFounder Controller shows ads.

### Which is updated more often, Crazyflie 2 or SunFounder Controller?

Crazyflie 2 ships an update every 13 months, and SunFounder Controller every 3 months. Most recently, Crazyflie 2 was updated on October 14, 2026 and SunFounder Controller on October 15, 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.*