# back number vs ギター：本物のコード練習

The clearest difference is review sentiment: ギター：本物のコード練習 at 58% against back number's 21%. ギター：本物のコード練習 also leads on in-app purchases (none vs 2) and update cadence (every 5 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. back number sells 2 in-app purchases, starting at $3.99 per month. ギター：本物のコード練習 asks for nothing beyond the download.

back number ships an update every 6 weeks, ギター：本物のコード練習 every 5 days. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | back number | ギター：本物のコード練習 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 21.2% of reviews | **58.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 161 MB | 150 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Fanplus, Inc.](https://appshunter.io/developer/427785206) | [PortFolder, Inc.](https://appshunter.io/developer/1520169676) |

## What reviewers say

### back number

[App page](https://appshunter.io/ios/app/back-number/id1304228982)

Access the latest news and exclusive content from a popular music artist. Enjoy member-only movies and blog posts, all within a dedicated fan community app.

**Highlights:** Latest artist information, Fan club exclusive movies, Member-only blog posts, Official app content

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 「one room」月額会員 | $3.99 | per month |
| 「back number」 月額会員 | $6.00 | per month |


### ギター：本物のコード練習

[App page](https://appshunter.io/ios/app/id6472209816)

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

**In-app purchases:** none


## Frequently asked questions

### Is back number free?

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

### Is ギター：本物のコード練習 free?

ギター：本物のコード練習 is free to download, with no in-app purchases.

### Do back number or ギター：本物のコード練習 have ads?

Neither back number nor ギター：本物のコード練習 shows ads.

### Which is updated more often, back number or ギター：本物のコード練習?

back number ships an update every 6 weeks, and ギター：本物のコード練習 every 5 days. Most recently, back number was updated on October 14, 2026 and ギター：本物のコード練習 on October 9, 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.*