# 音壳 vs 识谱卡

The clearest difference is update cadence: 音壳 at fortnightly against 识谱卡's every 4 months. 音壳 also leads on iOS requirement (12.0 vs 17.6). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. 音壳 sells 11 one-off in-app purchases and 识谱卡 sells 5 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

音壳 holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 19 and 17 respectively. Written reviews complicate that: 96% of 音壳's written reviews are positive against 100% of 识谱卡's, so the app with the better star average is not the one people write more warmly about.

音壳 ships an update fortnightly, 识谱卡 every 4 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | 音壳 | 识谱卡 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (19 ratings)](https://appshunter.io/ios/app/app/id1209335292/reviews)** | [4.8 (17 ratings)](https://appshunter.io/ios/app/id6459267257/reviews) |
| Number of ratings | **19** | 17 |
| Positive reviews | 96.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 179 MB | 83 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [鑫 孟](https://appshunter.io/developer/1264513934) | [炯龙 吴](https://appshunter.io/developer/596409525) |

## What reviewers say

### 音壳

[App page](https://appshunter.io/ios/app/app/id1209335292)

Master music theory, sight-singing, and ear training with comprehensive exercises. This app helps beginners and advanced learners improve their music reading, pitch accuracy, and understanding of intervals, chords, and rhythms. It offers customizable practice and a supportive community for musical growth.

**Highlights:** Music theory lessons and exercises, Sight-singing pitch evaluation, Interval, chord, and scale ear training, Rhythm and melody practice, Customizable practice modes, Pure, realistic instrument sounds, Q&A and community forum

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1金币 | $0.99 | one-time |
| 8乐点 | $0.99 | one-time |
| 1个月 | $0.99 | one-time |
| 18乐点 | $2.99 | one-time |
| 1个月 | $3.99 | one-time |
| 40乐点 | $5.99 | one-time |
| 1个月 | $14.99 | one-time |
| 108乐点 | $15.99 | one-time |
| 3个月音壳VIP会员 | $21.99 | one-time |
| 12个月 | $54.99 | one-time |
| 12个月艺考VIP会员 | $449.99 | one-time |


### 识谱卡

[App page](https://appshunter.io/ios/app/id6459267257)

Learn to read sheet music and music theory with over 700 flashcards. This app is ideal for adults and children starting their musical journey, offering various card types and quiz modes for effective learning.

**Highlights:** Over 700 sheet music flashcards, Various card types (notes, rhythms, chords, scales), Card flipping for note identification, Card-based quizzes, Customizable card order, Audio playback of notes, Daily tasks and coin system for unlocking cards

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $4.99 | per month |
| 年度会员 | $14.99 | per year |
| 600金币 | $0.99 | one-time |
| 3000金币 | $3.99 | one-time |
| 6800金币 | $9.99 | one-time |


## Frequently asked questions

### Is 音壳 free?

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

### Is 识谱卡 free?

识谱卡 is free to download, with in-app purchases available.

### Which has better reviews, 音壳 or 识谱卡?

音壳 is rated higher. 音壳 averages 5.0 out of 5 from 19 ratings, while 识谱卡 averages 4.8 from 17 ratings.

### Do 音壳 or 识谱卡 have ads?

Neither 音壳 nor 识谱卡 shows ads.

### Which is updated more often, 音壳 or 识谱卡?

音壳 ships an update fortnightly, and 识谱卡 every 4 months. Most recently, 音壳 was updated on October 24, 2026 and 识谱卡 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.*