# 钢舌鼓8音 vs AI Harp

The clearest difference is review sentiment: 钢舌鼓8音 at 100% against AI Harp's 0%. 钢舌鼓8音 also leads on in-app purchases (none vs 1) and device support (3 vs 1). AI Harp's advantage is update cadence (every 2 weeks vs every 49 months). On price and ads there is nothing between them.

钢舌鼓8音 costs $0.99 and AI Harp $0.99 up front. AI Harp sells 1 one-off in-app purchase. 钢舌鼓8音 asks for nothing beyond the download.

钢舌鼓8音 ships an update every 49 months, AI Harp every 2 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | 钢舌鼓8音 | AI Harp |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 49 months | **Every 2 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 40 MB | 18 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [YING DONG](https://appshunter.io/developer/538409540) | [树伟 杨](https://appshunter.io/developer/1843510075) |

## What reviewers say

### 钢舌鼓8音

[App page](https://appshunter.io/ios/app/8/id1464221312)

Experience a virtual steel tongue drum with authentic Chinese pentatonic scales. Optimized for multi-touch, it offers three playing modes for easy mastery. Create your own physical drum with DIY instructions for a unique interactive musical journey.

**Highlights:** Virtual steel tongue drum, Authentic pentatonic scales, Multi-touch optimized, Three playing modes, DIY physical drum instructions, Cardboard mode for physical drum creation

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

**In-app purchases:** none


### AI Harp

[App page](https://appshunter.io/ios/app/ai-harp/id6760115035)

This app provides real-time feedback for harmonica practice, acting as a tuner, coach, and tab trainer. It offers guided exercises, detailed performance metrics, and progress tracking to help users improve their playing.

**Highlights:** Real-time tuner and feedback, Guided practice exercises, Detailed performance metrics, Tab import/export, Metronome with tap tempo, Progress tracking and analysis

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Harp Pro | $1.99 | one-time |


## Frequently asked questions

### Is 钢舌鼓8音 free?

钢舌鼓8音 costs $0.99, with no in-app purchases.

### Is AI Harp free?

AI Harp costs $0.99, and also offers in-app purchases.

### Do 钢舌鼓8音 or AI Harp have ads?

Neither 钢舌鼓8音 nor AI Harp shows ads.

### Which is updated more often, 钢舌鼓8音 or AI Harp?

钢舌鼓8音 ships an update every 49 months, and AI Harp every 2 weeks. Most recently, 钢舌鼓8音 was updated on October 25, 2026 and AI Harp on October 25, 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.*