# 音楽練習場オトレン（OTOREN） vs BackStage

The clearest difference is in-app purchases: 音楽練習場オトレン（OTOREN） at none against BackStage's 2. BackStage's advantage is update cadence (every 2 days vs every 14 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BackStage sells 2 in-app purchases, starting at $1.99 per month. 音楽練習場オトレン（OTOREN） asks for nothing beyond the download.

音楽練習場オトレン（OTOREN） ships an update every 14 months, BackStage every 2 days. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 音楽練習場オトレン（OTOREN） | BackStage |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 85 MB | 42 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OTOREN, K.K.](https://appshunter.io/developer/1590982086) | [Shinji Koyasu](https://appshunter.io/developer/1885807829) |

## What reviewers say

### 音楽練習場オトレン（OTOREN）

[App page](https://appshunter.io/ios/app/otoren/id1590981724)

This app provides access to private music practice rooms equipped with high-quality soundproofing. It allows users to book rooms, manage membership, and receive special offers. Ideal for musicians of all levels seeking a dedicated space to practice or perform.

**Highlights:** Book practice rooms, Manage membership and points, Collect stamps for rewards, Receive exclusive offers and coupons, Access campaign information

**In-app purchases:** none


### BackStage

[App page](https://appshunter.io/ios/app/backstage-stage-manager/id6760702162)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ルート検索 | $1.99 | per month |
| プロモード | $5.99 | per month |


## Frequently asked questions

### Is 音楽練習場オトレン（OTOREN） free?

音楽練習場オトレン（OTOREN） is free to download, with no in-app purchases.

### Is BackStage free?

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

### Do 音楽練習場オトレン（OTOREN） or BackStage have ads?

Neither 音楽練習場オトレン（OTOREN） nor BackStage shows ads.

### Which is updated more often, 音楽練習場オトレン（OTOREN） or BackStage?

音楽練習場オトレン（OTOREN） ships an update every 14 months, and BackStage every 2 days. Most recently, 音楽練習場オトレン（OTOREN） was updated on October 9, 2026 and BackStage on October 24, 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.*