# MOUSSY(マウジー)公式アプリ vs O'STIN

The clearest difference is review sentiment: O'STIN at 28% against MOUSSY(マウジー)公式アプリ's 0%. O'STIN also leads on update cadence (fortnightly vs every 2 months). MOUSSY(マウジー)公式アプリ's advantage is monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MOUSSY(マウジー)公式アプリ ships an update every 2 months, O'STIN fortnightly. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | MOUSSY(マウジー)公式アプリ | O'STIN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (774 ratings)](https://appshunter.io/ios/app/ostin/id1482920931/reviews)** |
| Number of ratings | — | **774** |
| Positive reviews | 0.0% of reviews | **28.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 177 MB |
| Requires iOS | 16.1.1 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Baroque Japan Limited](https://appshunter.io/developer/858996838) | [OSTIN, OOO](https://appshunter.io/developer/1482920402) |

## What reviewers say

### MOUSSY(マウジー)公式アプリ

[App page](https://appshunter.io/ios/app/moussy/id903335240)

Discover the latest fashion trends and shop directly from the online store. Find nearby physical locations and stay updated with new arrivals, popular items, and staff-styled outfits. Receive push notifications for important news and promotions.

**Highlights:** Online store access, Product ranking, New arrivals, Staff fashion snaps, Store locator, Push notifications

**In-app purchases:** none


### O'STIN

[App page](https://appshunter.io/ios/app/ostin/id1482920931)

Discover trendy and affordable clothing for women, men, and children inspired by city styles. Get bonus points upon registration and enjoy personalized offers, stylist picks, and easy returns. Shop conveniently from anywhere with various delivery options.

**Highlights:** Wide selection of trendy clothing, Welcome bonus points, Loyalty program, Personalized offers and discounts, Stylist picks and reviews, Convenient delivery and returns, Try before you buy

**In-app purchases:** none


## Frequently asked questions

### Is MOUSSY(マウジー)公式アプリ free?

MOUSSY(マウジー)公式アプリ is free to download, with no in-app purchases.

### Is O'STIN free?

O'STIN is free to download, with no in-app purchases.

### Do MOUSSY(マウジー)公式アプリ or O'STIN have ads?

Neither MOUSSY(マウジー)公式アプリ nor O'STIN shows ads.

### Which is updated more often, MOUSSY(マウジー)公式アプリ or O'STIN?

MOUSSY(マウジー)公式アプリ ships an update every 2 months, and O'STIN fortnightly. Most recently, MOUSSY(マウジー)公式アプリ was updated on September 9, 2026 and O'STIN on September 22, 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.*