# SunFounder Controller vs StackChan World

The clearest difference is review sentiment: SunFounder Controller at 95% against StackChan World's 0%. SunFounder Controller also leads on rating (4.4 vs 1.4) and ratings volume (28 vs 8). StackChan World's advantage is update cadence (every 6 days vs every 3 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 1.4. Both are backed by a comparable volume of ratings — 28 and 8 respectively. Written reviews point the same way: 95% of SunFounder Controller's written reviews are positive against 0% of StackChan World's.

SunFounder Controller ships an update every 3 months, StackChan World every 6 days. The most recent releases landed on September 11, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | SunFounder Controller | StackChan World |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (28 ratings)](https://appshunter.io/ios/app/sunfounder-controller/id1538719422/reviews)** | [1.4 (8 ratings)](https://appshunter.io/ios/app/stackchan-world/id6756086326/reviews) |
| Number of ratings | **28** | 8 |
| Positive reviews | **94.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 92 MB | 164 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Maker Stars Technology Co., Ltd.](https://appshunter.io/developer/1422345349) | [M5Stack Technology Co., Ltd.](https://appshunter.io/developer/1726975189) |

## 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


### StackChan World

[App page](https://appshunter.io/ios/app/stackchan-world/id6756086326)

This app allows users to connect with a cute, AI-powered desktop robot. It provides access to the robot's features and enhances the user experience with its open-source hardware and software.

**Highlights:** AI-powered robot interaction, Open-source hardware and software, App-based pairing with robot, Enhanced user fun and features, Community co-created robot

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SunFounder Controller free?

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

### Is StackChan World free?

StackChan World is free to download, with no in-app purchases.

### Which has better reviews, SunFounder Controller or StackChan World?

SunFounder Controller is rated higher. SunFounder Controller averages 4.4 out of 5 from 28 ratings, while StackChan World averages 1.4 from 8 ratings.

### Do SunFounder Controller or StackChan World have ads?

Neither SunFounder Controller nor StackChan World shows ads.

### Which is updated more often, SunFounder Controller or StackChan World?

SunFounder Controller ships an update every 3 months, and StackChan World every 6 days. Most recently, SunFounder Controller was updated on September 11, 2026 and StackChan World on September 24, 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.*