# back number vs Jフェス

The clearest difference is in-app purchases: Jフェス at none against back number's 2. back number's advantage is iOS requirement (15.0 vs 17.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. back number sells 2 in-app purchases, starting at $3.99 per month. Jフェス asks for nothing beyond the download.

back number ships an update every 6 weeks, Jフェス every 4 weeks. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | back number | Jフェス |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **21.2% of reviews** | 14.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 161 MB | 173 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fanplus, Inc.](https://appshunter.io/developer/427785206) | [rockin'on holdings inc.](https://appshunter.io/developer/945870984) |

## 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 |


### Jフェス

[App page](https://appshunter.io/ios/app/j/id1398652658)

Your all-in-one guide for major Japanese music festivals. Get early ticket access, artist announcements, venue maps, and essential tips for beginners. Relive the experience with live photos and setlists after the event.

**Highlights:** Official festival app, Early ticket applications, Artist announcements, Beginner's guide, Timetable and maps, Live photos and setlists

**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 Jフェス free?

Jフェス is free to download, with no in-app purchases.

### Do back number or Jフェス have ads?

Neither back number nor Jフェス shows ads.

### Which is updated more often, back number or Jフェス?

back number ships an update every 6 weeks, and Jフェス every 4 weeks. Most recently, back number was updated on October 1, 2026 and Jフェス on October 2, 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.*