# 15tree

> Official fan club app for exclusive artist news, messages, Vlogs, and galleries. (iPhone/iPad app by pieces inc..)

- Source: https://appshunter.io/ios/app/15tree/id6756683442 (this page in markdown: same URL + `.md`)
- Developer: [pieces inc.](https://appshunter.io/developer/1192642732)
- Category: Entertainment
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 187 MB
- Languages: Japanese
- Released: 2026-02-17
- Data updated: 2026-08-16
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/15tree/id6756683442/reviews.md

## What is 15tree?

TRACK15 official app「15tree」リリース！
15treeでは、ファンの皆様に向けて充実した体験をアプリでお届けします！

◆NEWS
TRACK15の活動やリリース情報、ライブ情報、チケット先行情報など、
会員限定でいち早くお届けします

◆TALK
TRACK15メンバー1人1人がファンクラブ会員限定で送る特別なメッセージ配信。
メンバーから直接届く最新情報やここだけの裏話を、ぜひお楽しみください。

◆VLOG
メンバーによるコンテンツを定期的に配信！
楽曲制作の裏話やQ&Aセッションなどをお届けします。

◆GALLERY
ライブやイベントの舞台裏、日常など、
ここでしか見られないGALLERYをお楽しみいただけます。

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://15tree.jp/policy

## Key features

- Exclusive news and updates
- Member-exclusive messages
- Behind-the-scenes Vlogs
- Photo and video galleries
- Early ticket access

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| アプリ会員 | $5.99 | per month |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/15tree/id6756683442/reviews.md

### 5/5 — 最高のコンテンツ！伸びしろ１つだけ伝えたい！

*2026-03-20*

チャット機能めっちゃ最高なのですが、プッシュ通知の時点でLINEみたいにメッセージ内容見れるようになったらもっとリアルタイムでメンバーからの通知が来てる感が上がるなぁ、と！
今は「(名前)からメッセージが届きました」と表示されており、アプリのチャット開けないと内容見れないので😿

ぜひ改善よろしくお願いいたします！

### 5/5 — 控えめに言って最高です！

*2026-02-21*

リリースおめでとうございます‼️ゆるっとメンバーの日常を覗けるのをとても楽しませてもらってます(*´ ³ `)ﾉ

### 5/5 — 一生ついていきます

*2026-02-17*

TRACK15に愛を込めて

## Frequently asked questions about 15tree

### What is 15tree?

15tree is the official app for TRACK15, offering fans exclusive content such as news, member messages, Vlogs, and galleries. It aims to provide a rich fan club experience.

### What kind of content can I find on 15tree?

You can access breaking news about TRACK15, exclusive messages directly from members, behind-the-scenes Vlogs, and a special gallery with photos from live events and daily life.

### Does 15tree offer early access to tickets?

Yes, 15tree provides fans with early access information for ticket pre-sales, ensuring members are among the first to know about upcoming live events.

### How much does a 15tree membership cost?

A 15tree membership costs $5.99 per month. This subscription unlocks all exclusive content and features within the app.

### What devices does 15tree support?

15tree is available on iPhone and iPod devices. It is designed for iOS users.

### How often is new content updated on 15tree?

The app description indicates that member content, including Vlogs and gallery updates, is delivered periodically. The latest version was updated on May 15, 2026.

### Is 15tree suitable for all ages?

15tree has an age rating of 4+, making it suitable for a wide audience. However, content is geared towards fans of the artist TRACK15.

### Does 15tree have ads?

No, 15tree does not contain advertisements. As a subscription-based service, the focus is on providing an uninterrupted fan experience.

## Version history (last 2 releases)

### 1.0.1 — 2026-05-15

[更新内容]
- 新しいトークルームを追加
- アプリの全体的なパフォーマンス向上

今後もTRACK15 official app「15tree」をよろしくお願いします！

### 1.0.0 — 2026-02-17

No release notes.

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## More apps by pieces inc.

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All apps by pieces inc.: https://appshunter.io/developer/1192642732

## Related topics

[15tree](https://appshunter.io/ios/topics/15tree)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-16.*