# in+ Online Music Teaching Tool — Explore music anywhere.

> Online music teaching platform connecting students and teachers worldwide. (iPhone/iPad app by Hangzhou Yinjia Internet Technology Co., Ltd.)

- Source: https://appshunter.io/ios/app/in-plus-online-music-teaching-tool/id1518370610 (this page in markdown: same URL + `.md`)
- Developer: [Hangzhou Yinjia Internet Technology Co., Ltd](https://appshunter.io/developer/1637067147)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 5 App Store ratings · 14 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 105 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2020-08-20
- Data updated: 2026-08-25
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/in-plus-online-music-teaching-tool/id1518370610/reviews.md

## What is in+ Online Music Teaching Tool?

"in+" is a professional online music teaching tool that seamlessly connects outstanding teachers and students from around the world, facilitating domestic and international users to complete various music courses through online teaching services. "in+" employs industry-leading audio and video technology to address various challenges in online music teaching, enhancing the user experience with a vast repertoire and interactive whiteboard.

[Product Features]

Feature One:
- Audio: Near-original sound quality in both capture and output.
- Video: High-definition, smooth video streaming with global coverage of network nodes.

Feature Two:
- Whiteboard: Synchronous writing on a new interactive whiteboard and access to millions of public domain music scores for free.

Feature Three:
- Dual-mode Classroom: Landscape and portrait modes suitable for teaching different instruments in various scenarios.

[Helpful Reminder]
Maintain optimal network and device conditions for enhanced audio quality, especially when using headphones.

[Contact Us]
Customer Service Email: CSD@prof-y.com
Customer Service Hotline: +86 0571 56386960 (Monday to Friday, 9:30–17:30 on working days)

## Key features

- High-quality audio and video streaming
- Interactive whiteboard with free music scores
- Dual-mode classroom (landscape/portrait)
- Global network for smooth connectivity
- Vast repertoire access

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 一天会员 | $2.99 | one-time |
| 三百六十天会员 | $239.99 | one-time |
| 三十天会员 | $29.99 | one-time |


## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/in-plus-online-music-teaching-tool/id1518370610/reviews.md

### 3/5 — 单簧管

*2026-04-11*

单簧管的音色有时候识别不出来啊，当成噪音直接过滤掉了

### 3/5 — 根本用不了，不知道这些评论是怎么来的

*2025-11-05*

根本用不了，不知道这些评论是怎么来的

### 3/5 — 根本收不到验证码啊😩

*2025-06-26*

试了好多次了都不行

### 1/5 — 不能购买一天会员和月卡会员

*2024-12-30*

只能购买年会员，点一天会员和月会员就一直显示网络转圈圈

### 5/5 — Love it

*2024-10-25*

I like it very much. It is very convenient to use……

### 5/5 — Great introduction

*2024-10-25*

Thank you for my friend

### 3/5 — 收不到验证码

*2024-10-19*

收不到验证码

**Developer response:** 您好，有时候会因为网络问题导致短信通道堵塞，建议您再尝试一下，登录后设置密码，下次就不需要验证码便可登录了哦，有其他问题请联系我们的客服获得支持，感谢您对音佳的信赖，祝您生活愉快~

### 5/5 — Fantastic Selection!

*2024-10-09*

I love the variety of products available. It’s my go-to app for all my shopping needs.

### 5/5 — Bravo

*2024-10-09*

Teacher Anna recommended this to my child. This is the best online piano lesson I have ever taken. The sound quality is amazing!Thank you Anna

### 5/5 — Amazing App!

*2024-10-09*

The interface is user-friendly, making shopping a breeze. Highly recommend!

## Frequently asked questions about in+ Online Music Teaching Tool

### What is in+?

in+ is a professional online music teaching tool that connects music teachers and students globally. It facilitates music courses through online teaching services, utilizing advanced audio and video technology.

### Does in+ offer free music scores?

Yes, in+ provides access to millions of public domain music scores for free through its interactive whiteboard feature.

### What are the audio and video capabilities of in+?

in+ offers near-original sound quality for both capture and output, alongside high-definition, smooth video streaming with global network coverage.

### What devices does in+ support?

in+ is available on iPhone, iPad, and iPod devices.

### What is the age rating for in+?

The age rating for in+ is 17+, indicating it is intended for mature users.

### How often is in+ updated?

The latest version of in+ is 3.3.3, and it was last updated on June 9, 2024. Updates typically occur to improve features and performance.

### How can I get help with in+?

You can contact customer service via email at CSD@prof-y.com or by phone at +86 0571 56386960 during working hours (Monday to Friday, 9:30–17:30).

### Does in+ have ads?

No, in+ does not contain advertisements.

## Version history (last 5 releases)

### 3.5.1 — 2026-04-26

- fix bug for wechat share error
- adaptive iOS26

### 3.5.0 — 2026-04-07

Modify the auto-login feature for changing the phone number.

### 3.3.3 — 2024-06-09

Bug fixes and improvements

### 3.3.2 — 2024-02-02

Resolve login issues on lower versions of the iOS operating system.

### 3.3.1 — 2024-01-26

1. Addressed known bugs to boost app stability.
2. Enhanced application performance through key component upgrades.
3. Introduced an English interface for greater user flexibility worldwide.
4. Adjust keywords.

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## Related topics

[teaching tools](https://appshunter.io/ios/topics/teaching-tools) · [teaching online](https://appshunter.io/ios/topics/teaching-online)

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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 2026-08-25.*