# 吉他世界 vs Double+

The clearest difference is in-app purchases: Double+ at none against 吉他世界's 8. Double+ also leads on update cadence (every 6 days vs every 5 weeks) and rating (3.4 vs 3.2). 吉他世界's advantage is review sentiment (52% vs 20%). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. 吉他世界 sells 8 one-off in-app purchases. Double+ asks for nothing beyond the download.

Double+ holds the better App Store score, 3.4 against 3.2. Both are backed by a comparable volume of ratings — 6 and 7 respectively. Written reviews complicate that: 52% of 吉他世界's written reviews are positive against 20% of Double+'s, so the app with the better star average is not the one people write more warmly about.

吉他世界 ships an update every 5 weeks, Double+ every 6 days. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 吉他世界 | Double+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (6 ratings)](https://appshunter.io/ios/app/id1477456343/reviews) | **[3.4 (7 ratings)](https://appshunter.io/ios/app/double-plus/id1623962082/reviews)** |
| Number of ratings | 6 | **7** |
| Positive reviews | **52.2% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Monetization | — | Free |
| Size | 174 MB | 99 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anjiang Information Technology (Chengdu) Co., Ltd](https://appshunter.io/developer/1660504742) | [Huizhou Debo Acoustics Co., Ltd.](https://appshunter.io/developer/1586595923) |

## What reviewers say

### 吉他世界

[App page](https://appshunter.io/ios/app/id1477456343)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12.6吉他币 | $2.99 | one-time |
| 21吉他币 | $3.99 | one-time |
| 35.0吉他币 | $6.99 | one-time |
| 75.6吉他币 | $14.99 | one-time |
| 110.6吉他币 | $22.99 | one-time |
| 145.6吉他币 | $29.99 | one-time |
| 362.6吉他币 | $69.99 | one-time |
| 698.6吉他币 | $149.99 | 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 吉他世界 free?

吉他世界 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, 吉他世界 or Double+?

Double+ is rated higher. 吉他世界 averages 3.2 out of 5 from 6 ratings, while Double+ averages 3.4 from 7 ratings.

### Do 吉他世界 or Double+ have ads?

Neither 吉他世界 nor Double+ shows ads.

### Which is updated more often, 吉他世界 or Double+?

吉他世界 ships an update every 5 weeks, and Double+ every 6 days. Most recently, 吉他世界 was updated on October 26, 2026 and Double+ on October 21, 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.*