# EspBlufi vs SunFounder Controller

The clearest difference is rating: SunFounder Controller at 4.4 against EspBlufi's 3.3. SunFounder Controller also leads on ratings volume (28 vs 3). On price, update cadence, 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.

SunFounder Controller holds the better App Store score, 4.4 against 3.3. 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.

EspBlufi ships an update every 2 months, SunFounder Controller every 3 months. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | EspBlufi | SunFounder Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/espblufi/id1450614082/reviews) | **[4.4 (28 ratings)](https://appshunter.io/ios/app/sunfounder-controller/id1538719422/reviews)** |
| Number of ratings | 3 | **28** |
| Positive reviews | — | 94.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 3 MB | 92 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.](https://appshunter.io/developer/1071176699) | [Shenzhen Maker Stars Technology Co., Ltd.](https://appshunter.io/developer/1422345349) |

## What reviewers say

### EspBlufi

[App page](https://appshunter.io/ios/app/espblufi/id1450614082)

This utility app facilitates communication with IoT devices using BLE data. It enables device distribution and custom data transmission, requiring the external device to be powered on for connection.

**Highlights:** BLE communication with IoT devices, Device distribution, Custom data transmission, Custom data reception, Search and connect functionality

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

**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 EspBlufi free?

EspBlufi 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, EspBlufi or SunFounder Controller?

SunFounder Controller is rated higher. EspBlufi averages 3.3 out of 5 from 3 ratings, while SunFounder Controller averages 4.4 from 28 ratings.

### Do EspBlufi or SunFounder Controller have ads?

Neither EspBlufi nor SunFounder Controller shows ads.

### Which is updated more often, EspBlufi or SunFounder Controller?

EspBlufi ships an update every 2 months, and SunFounder Controller every 3 months. Most recently, EspBlufi was updated on October 4, 2026 and SunFounder Controller on October 3, 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.*