# SunFounder Controller vs Bluetooth Serial Connect

The clearest difference is review sentiment: SunFounder Controller at 95% against Bluetooth Serial Connect's 0%. SunFounder Controller also leads on rating (4.4 vs 3.7) and ads (none vs shown). On price, in-app purchases, monetization model 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.

SunFounder Controller holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 28 and 7 respectively. Written reviews point the same way: 95% of SunFounder Controller's written reviews are positive against 0% of Bluetooth Serial Connect's.

SunFounder Controller ships an update every 3 months, Bluetooth Serial Connect every 10 months. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | SunFounder Controller | Bluetooth Serial Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (28 ratings)](https://appshunter.io/ios/app/sunfounder-controller/id1538719422/reviews)** | [3.7 (7 ratings)](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821/reviews) |
| Number of ratings | **28** | 7 |
| Positive reviews | **94.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 10 months |
| Monetization | Free | Free |
| Size | 92 MB | 24 MB |
| Requires iOS | **11.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Maker Stars Technology Co., Ltd.](https://appshunter.io/developer/1422345349) | [Henry Abrahamsen](https://appshunter.io/developer/1544660671) |

## What reviewers say

### 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


### Bluetooth Serial Connect

[App page](https://appshunter.io/ios/app/bluetooth-serial-connect/id6449396821)

Control your Arduino projects with your phone. Design custom interfaces with buttons, joysticks, and displays to send and receive data via Bluetooth low-energy modules. An integrated library simplifies the connection process.

**Highlights:** Customizable control boards, Button and joystick inputs, Display integration, Bluetooth low-energy module support, Arduino library for easy integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SunFounder Controller free?

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

### Is Bluetooth Serial Connect free?

Bluetooth Serial Connect is free to download, with no in-app purchases.

### Which has better reviews, SunFounder Controller or Bluetooth Serial Connect?

SunFounder Controller is rated higher. SunFounder Controller averages 4.4 out of 5 from 28 ratings, while Bluetooth Serial Connect averages 3.7 from 7 ratings.

### Do SunFounder Controller or Bluetooth Serial Connect have ads?

Bluetooth Serial Connect shows ads; SunFounder Controller does not.

### Which is updated more often, SunFounder Controller or Bluetooth Serial Connect?

SunFounder Controller ships an update every 3 months, and Bluetooth Serial Connect every 10 months. Most recently, SunFounder Controller was updated on October 3, 2026 and Bluetooth Serial Connect on September 29, 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.*