# Cool Carnival

> Bluetooth-controlled colorful lights app for custom text, picture, and music displays. (iPhone/iPad app by 朋涛 张.)

- Source: https://appshunter.io/ios/app/cool-carnival/id1511715506 (this page in markdown: same URL + `.md`)
- Developer: [朋涛 张](https://appshunter.io/developer/1212220000)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 2.30/5 from 98 App Store ratings · 69 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 26 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China), European Spanish
- Released: 2020-05-09
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cool-carnival/id1511715506/reviews.md

## What is Cool Carnival?

CoolCarnival is an app developed by Shenzhen Huaosi Technology Development Co., Ltd. authorized to control the colorful lights. This app uses Bluetooth to connect to the colorful lights. It can send text, pictures, music and other data to control the colorful lights.

## Key features

- Bluetooth light control
- Text display
- Picture display
- Music synchronization
- Customizable light effects

## Recent user reviews (10 of 69)

All indexed reviews: https://appshunter.io/ios/app/cool-carnival/id1511715506/reviews.md

### 3/5 — One feature doesn’t work

*2023-08-18*

Pretty cool except for the fact the doodling doesn’t work on newer phones

### 1/5 — Cancelled

*2021-06-30, version 3.0.3*

Why has my mask been cancelled and why does it not connect? I can’t get anything on it anymore so can’t rate

### 2/5 — Doodling problems

*2021-04-16*

Whenever I pair the app with the mask, none of my doodles load so I can’t use them. When I don’t pair the two, the doodles load but I can’t use them because the mask isn’t connected. I even tried uninstalling and reinstalling the app which didn’t work. This wasn’t a problem I had before version 3.0.0

### 5/5 — Good

*2021-03-03, version 2.1.4*

Good

### 1/5 — Need to be better

*2021-02-02*

This is a nice product but it’s not a good product because the connection doesn’t stay on at all great idea but must do better then you say if you break the seal you warranty is voided 🤦🏽‍♂️what if it’s broken when you receive it just waste of money ? But it still is a nice lil mask just need fixing...

### 5/5 — Music

*2021-01-13*

I can’t figure out how to put more music on it then the two preloaded ones

### 5/5 — Works well! Just pay attention to the small switch

*2021-01-12*

Works perfectly. You just need to be aware of the small switch near the usb charger

### 1/5 — Having issues!

*2021-01-03*

I bought 2 masks....1 for my husband and 1 for me. Got one of the masks linked to the phone bed can NOT get the second mask to link! Very frustrating specially with the money I paid for it!! 
Very upset!!! 🤬
UPDATE: I was never able to get the second mask to pair with mine nor my husband’s phone. Been emailing back and forth with someone from China who obviously doesn’t understand my issues. 
Husband went to use his mask today and low and behold IT DOESN’T work now. 
I purchased this item well before Christmas and it took forever to get here...I’m assuming for customs(?), so obviously I am VERY disappointed that after all this waiting the product doesn’t work at all! I am asking seller for a full refund. 
(We will see what they will do!)

### 3/5 — Sorta works

*2020-12-31, version 2.1.3*

App crashes when trying to use equalizer. Connects to my I[hone 12 Pro but disconnects a lot. No instruction on how to remove text when you are tired of it. It does work tho and is pretty cool. It needs another update to workout bugs. Music works better since update but won’t play music from your playlist because of copyright. Only plays music that is supplied. A work around is needed. Also Bluetooth connects and disconnects frequently

### 4/5 — Pretty good app- music doesn’t work on iPhone

*2020-12-27*

This app generally does everything that it is supposed to do but the music function doesn’t work on the iPhone 12 and the equalizer needs some improvement to get a better range. I wish there was an animation for a mouth that opens and closes with sound or a way to create our own animation by combining two or three doodle drawings.

## Frequently asked questions about Cool Carnival

### What does the Cool Carnival app do?

This app allows you to control colorful lights using your smartphone via a Bluetooth connection. You can send various data like text, pictures, and music to customize the light displays.

### What are the key features of this app?

Key features include controlling colorful lights via Bluetooth, displaying custom text messages, showing pictures, and synchronizing lights with music. This enables a dynamic and personalized light experience.

### Is this app free to use?

Yes, the application is available for free. There are no advertisements or in-app purchases mentioned, suggesting a completely free user experience.

### What kind of devices is this app compatible with?

The app is designed to control colorful lights that support Bluetooth connectivity. Compatibility with specific light models would depend on the light manufacturer's specifications.

### How can I use this app for events?

You can use this app to create custom light shows for parties, gatherings, or personal decoration. Displaying text, images, or syncing lights to music can enhance the ambiance of any event.

## Version history (last 5 releases)

### 3.0.7 — 2024-01-21

1. Optimize the app dynamic graph list\n2. Deal with some bugs

### 3.0.6 — 2021-09-12

1. Optimize the app dynamic graph list
2. Deal with some bugs

### 3.0.3 — 2021-06-26

1. Some color screen animations
2. Deal with some bugs

### 3.0.2 — 2021-06-05

1. Some color screen animations
2. Deal with some bugs

### 3.0.1 — 2021-04-22

1. Added support for color screen version devices
2. Optimized doodling logic and added animated picture sending function
3. Deal with some bugs

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## More apps by 朋涛 张

- [三居阁](https://appshunter.io/ios/app/id1212220121)
- [壹创智能会议](https://appshunter.io/ios/app/id1489706153)
- [TFace](https://appshunter.io/ios/app/tface/id1571293047)

All apps by 朋涛 张: https://appshunter.io/developer/1212220000

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*