# 有谱么 vs Double+

The clearest difference is review sentiment: 有谱么 at 96% against Double+'s 20%. 有谱么 also leads on rating (4.8 vs 3.4) and ratings volume (79 vs 7). Double+'s advantage is in-app purchases (none vs 6) and update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 有谱么 sells 6 in-app purchases, starting at $1.99 per month. Double+ asks for nothing beyond the download.

有谱么 holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: 有谱么 has 79 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 96% of 有谱么's written reviews are positive against 20% of Double+'s.

有谱么 ships an update every 3 weeks, Double+ every 6 days. The most recent releases landed on September 23, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | 有谱么 | Double+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (79 ratings)](https://appshunter.io/ios/app/id973743727/reviews)** | [3.4 (7 ratings)](https://appshunter.io/ios/app/double-plus/id1623962082/reviews) |
| Number of ratings | **79** | 7 |
| Positive reviews | **95.5% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 99 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Hangzhou Youpu Technology Co., Ltd](https://appshunter.io/developer/1498404556) | [Huizhou Debo Acoustics Co., Ltd.](https://appshunter.io/developer/1586595923) |

## What reviewers say

### 有谱么

[App page](https://appshunter.io/ios/app/id973743727)

This app provides a comprehensive library of sheet music for various instruments, catering to all skill levels. It features smart layout, offline access, and community sharing to enhance your learning and practice experience.

**Highlights:** Adaptive sheet music layout, Offline sheet music caching, Simplified chords for beginners, Key transposition, Web-based editor for creating scores, Social community and leaderboards, Multi-device synchronization

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 有谱么包月会员 | $1.99 | per month |
| 有谱么包年会员 | $14.99 | per year |
| 500个谱豆 | $7.99 | one-time |
| 1000个谱豆 | $14.99 | one-time |
| 2000个谱豆 | $29.99 | one-time |
| 永久会员 | $69.99 | one-time |


### Double+

[App page](https://appshunter.io/ios/app/double-plus/id1623962082)

This app is an intelligent guitar pickup system control software designed for both beginners and professionals. It offers extensive features for practice, performance, and teaching, including tone adjustment, effects, a drum machine, metronome, tuner, and loop recording.

**Highlights:** Dual-channel independent mixing ratio volume adjustment, Customizable tone curves and EQ settings, Digital effects (compression, reverb, delay, distortion), Integrated drum machine with 144 styles, Metronome with practice settings, Tuning table for various instruments, Loop recording and music score functions

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

**In-app purchases:** none


## Frequently asked questions

### Is 有谱么 free?

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

### Is Double+ free?

Double+ is free to download, with no in-app purchases.

### Which has better reviews, 有谱么 or Double+?

有谱么 is rated higher. 有谱么 averages 4.8 out of 5 from 79 ratings, while Double+ averages 3.4 from 7 ratings.

### Do 有谱么 or Double+ have ads?

Neither 有谱么 nor Double+ shows ads.

### Which is updated more often, 有谱么 or Double+?

有谱么 ships an update every 3 weeks, and Double+ every 6 days. Most recently, 有谱么 was updated on September 23, 2026 and Double+ on June 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*