# JJ Lin APP vs 虫虫钢琴HD

The clearest difference is review sentiment: JJ Lin APP at 83% against 虫虫钢琴HD's 19%. JJ Lin APP also leads on in-app purchases (none vs 22) and rating (4.8 vs 4.5). 虫虫钢琴HD's advantage is ratings volume (178 vs 23). On price, ads and iOS requirement there is nothing between them.

Both are free to download. 虫虫钢琴HD sells 22 in-app purchases, starting at $21.99 per year. JJ Lin APP asks for nothing beyond the download.

JJ Lin APP holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: 虫虫钢琴HD has 178 ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 83% of JJ Lin APP's written reviews are positive against 19% of 虫虫钢琴HD's.

JJ Lin APP ships an update fortnightly, 虫虫钢琴HD every 2 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | JJ Lin APP | 虫虫钢琴HD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (23 ratings)](https://appshunter.io/ios/app/jj-lin-app/id841502890/reviews)** | [4.5 (178 ratings)](https://appshunter.io/ios/app/hd/id1080634885/reviews) |
| Number of ratings | 23 | **178** |
| Positive reviews | **83.3% of reviews** | 19.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 179 MB | 217 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 17+ | 4+ |
| Developer | [Shanghai Orota Tech Co., Ltd.](https://appshunter.io/developer/1448096234) | [Shanghai Lingzhuo Information Technology Co., Ltd.](https://appshunter.io/developer/1449345357) |

## What reviewers say

### JJ Lin APP

[App page](https://appshunter.io/ios/app/jj-lin-app/id841502890)

Connect with a popular Mandopop singer-songwriter. Get exclusive updates, behind-the-scenes content, and fan club information directly from the artist.

**Highlights:** Connect and interact with JJ Lin, Receive firsthand information and news, Easy access to Fan Club information, Follow JJ Lin's schedule, View behind-the-scenes photos and videos

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

**In-app purchases:** none


### 虫虫钢琴HD

[App page](https://appshunter.io/ios/app/hd/id1080634885)

This app simplifies learning piano with a vast library of professional sheet music, AI-powered practice tools, and interactive lessons. It offers real-time error correction, smart fingering suggestions, and personalized feedback to make practice more efficient and engaging for all skill levels.

**Highlights:** Vast professional sheet music library, AI-powered real-time error correction, Smart fingering suggestions, Interactive adult beginner courses, Sheet music to simplified notation conversion, Personalized practice feedback

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

**In-app purchases (22)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1年VIP会员 | $21.99 | per year |
| 6零钱 | $0.99 | one-time |
| 12零钱 | $1.99 | one-time |
| 30零钱 | $3.99 | one-time |
| 250零钱 | $3.99 | one-time |
| 700零钱 | $6.99 | one-time |
| 季卡VIP会员 | $9.99 | one-time |
| 年卡VIP会员 | $18.99 | one-time |
| VIP1年卡会员 | $21.99 | one-time |
| 新春特惠1年SVIP | $24.99 | one-time |
| 1212一年SVIP特惠价 | $24.99 | one-time |
| 1年SVIP疯狂618 | $24.99 | one-time |
| 新用户5年VIP卡会员 | $29.99 | one-time |
| 1年svip | $29.99 | one-time |
| 1212六年VIP特惠价 | $29.99 | one-time |
| 新春特惠5年VIP | $40.99 | one-time |
| 超级特惠五年VIP | $44.99 | one-time |
| SVIP5年卡 | $45.99 | one-time |
| 5年SVIP疯狂618 | $45.99 | one-time |
| 新春特惠5年SVIP | $45.99 | one-time |
| 新春特惠终身VIP | $61.99 | one-time |
| 永久会员卡1 | $99.99 | one-time |


## Frequently asked questions

### Is JJ Lin APP free?

JJ Lin APP is free to download, with no in-app purchases.

### Is 虫虫钢琴HD free?

虫虫钢琴HD is free to download, with in-app purchases available.

### Which has better reviews, JJ Lin APP or 虫虫钢琴HD?

JJ Lin APP is rated higher. JJ Lin APP averages 4.8 out of 5 from 23 ratings, while 虫虫钢琴HD averages 4.5 from 178 ratings.

### Do JJ Lin APP or 虫虫钢琴HD have ads?

Neither JJ Lin APP nor 虫虫钢琴HD shows ads.

### Which is updated more often, JJ Lin APP or 虫虫钢琴HD?

JJ Lin APP ships an update fortnightly, and 虫虫钢琴HD every 2 months. Most recently, JJ Lin APP was updated on October 26, 2026 and 虫虫钢琴HD on October 29, 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.*