# back number vs ジャイガ

The clearest difference is review sentiment: back number at 21% against ジャイガ's 0%. ジャイガ's advantage is update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases 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 and ジャイガ sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

back number ships an update every 6 weeks, ジャイガ every 2 weeks. The most recent releases landed on October 29, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | back number | ジャイガ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **21.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 162 MB | 113 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fanplus, Inc.](https://appshunter.io/developer/427785206) | [キョードー大阪](https://appshunter.io/developer/969051425) |

## 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 |


### ジャイガ

[App page](https://appshunter.io/ios/app/id1614942805)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| フォトダウンロード１枚 | $3.99 | one-time |
| フォトダウンロード５枚 | $11.99 | one-time |
| フォトダウンロード１０枚 | $23.99 | one-time |


## Frequently asked questions

### Is back number free?

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

### Is ジャイガ free?

ジャイガ is free to download, with in-app purchases available.

### Do back number or ジャイガ have ads?

Neither back number nor ジャイガ shows ads.

### Which is updated more often, back number or ジャイガ?

back number ships an update every 6 weeks, and ジャイガ every 2 weeks. Most recently, back number was updated on October 29, 2026 and ジャイガ on October 11, 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.*