# Teach Note vs 二胡调音器

The clearest difference is ads: 二胡调音器 at none against Teach Note's shown. 二胡调音器 also leads on rating (5.0 vs 4.7) and update cadence (every 2 weeks vs every 5 weeks). Teach Note's advantage is ratings volume (198 vs 1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Teach Note sells 10 in-app purchases, starting at $2.99 per month and 二胡调音器 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

二胡调音器 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Teach Note has 198 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 90% of Teach Note's written reviews are positive against 100% of 二胡调音器's.

Teach Note ships an update every 5 weeks, 二胡调音器 every 2 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Teach Note | 二胡调音器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (198 ratings)](https://appshunter.io/ios/app/teach-note-sight-reading/id1303295012/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1314785916/reviews)** |
| Number of ratings | **198** | 1 |
| Positive reviews | 90.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 213 MB | 40 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [炯龙 吴](https://appshunter.io/developer/596409525) | [鑫磊 张](https://appshunter.io/developer/1051215758) |

## What reviewers say

### Teach Note

[App page](https://appshunter.io/ios/app/teach-note-sight-reading/id1303295012)

Enhance your musical abilities with this app designed to improve staff notation reading and music theory knowledge. It offers structured courses, extensive practice exercises, and helpful tools to boost your sight-reading speed and understanding of musical concepts.

**Highlights:** 30+ sight-reading and music theory courses, 400+ sight-reading exercises, Intelligent error-correction practice, Multiple practice modes (built-in piano, MIDI/Bluetooth), Support for multiple clefs, Includes common musical tools (metronome, chord lookup)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $2.99 | per month |
| 季度会员 | $9.99 | per 3 months |
| 年度会员 | $22.99 | per year |
| 高级识谱训练包2 | $0.99 | one-time |
| 初级识谱训练包 | $0.99 | one-time |
| 练耳训练包 | $1.99 | one-time |
| 音符识谱训练包 | $1.99 | one-time |
| 高级识谱训练包 | $2.99 | one-time |
| 去除广告 | $3.99 | one-time |
| 终身会员 | $39.99 | one-time |

**What reviewers like**

- 👍 User-friendly interface, easy to learn
- 📚 Comprehensive and well-structured curriculum
- 🎯 Effective for beginners and self-learners
- ✅ Clear and simple explanations
- 🔄 Unlimited practice exercises

**What reviewers complain about**

- 💵 Paywall for premium content
- 🔊 Video tutorials lack audio on some devices
- 📺 Limited free content before requiring subscription
- 🎯 Requires 5-star review to unlock some features
- 📱 Occasional app crashes and stability issues

**Reported bugs**

- App crashes when accessing membership/subscription features
- Video tutorials have no sound on iPad
- Bluetooth MIDI connection not working despite pairing
- VIP recovery/restore purchase causes crashes
- App crashes after recent updates

**Requested features**

- More free practice content
- Ad-supported free tier alternative
- Wider keyboard interface
- Bluetooth MIDI connectivity improvements
- Additional features and functionality


### 二胡调音器

[App page](https://appshunter.io/ios/app/id1314785916)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 二胡调音器VIP | $5.99 | one-time |


## Frequently asked questions

### Is Teach Note free?

Teach Note is free to download, with in-app purchases available.

### Is 二胡调音器 free?

二胡调音器 is free to download, with in-app purchases available.

### Which has better reviews, Teach Note or 二胡调音器?

二胡调音器 is rated higher. Teach Note averages 4.7 out of 5 from 198 ratings, while 二胡调音器 averages 5.0 from 1 ratings.

### Do Teach Note or 二胡调音器 have ads?

Teach Note shows ads; 二胡调音器 does not.

### Which is updated more often, Teach Note or 二胡调音器?

Teach Note ships an update every 5 weeks, and 二胡调音器 every 2 weeks. Most recently, Teach Note was updated on October 26, 2026 and 二胡调音器 on October 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.*