# OSIRO オシロ vs C

OSIRO オシロ and C both sit at 5.0 stars, but that hides the real split: 45% of C's written reviews are positive against 10% of OSIRO オシロ's. C also leads on iOS requirement (15.1 vs 18). OSIRO オシロ's advantage is in-app purchases (none vs 1) and update cadence (fortnightly vs monthly). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. C sells 1 in-app purchase, starting at $14.49 per month. OSIRO オシロ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for OSIRO オシロ against 5.0 for C. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 10% of OSIRO オシロ's written reviews are positive against 45% of C's.

OSIRO オシロ ships an update fortnightly, C monthly. The most recent releases landed on September 17, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | OSIRO オシロ | C |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/osiro/id1455458052/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/c-place/id1556724606/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 10.0% of reviews | **45.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | **Free** | Subscription |
| Size | 16 MB | 84 MB |
| Requires iOS | 18 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OSIRO K.K.](https://appshunter.io/developer/1455458051) | [バイリンガール](https://appshunter.io/developer/1432582443) |

## What reviewers say

### OSIRO オシロ

[App page](https://appshunter.io/ios/app/osiro/id1455458052)

This companion app enhances the experience of using a community management platform. It centralizes content, blogs, groups, chats, and events, improving communication quality for fan or internal communities. Push notifications and multi-community switching are key features.

**Highlights:** Push notifications, Multi-community switching, Centralized content, Blog and group integration, Event management, Cross-device synchronization

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

**In-app purchases:** none


### C

[App page](https://appshunter.io/ios/app/c-place/id1556724606)

This community app offers exclusive content and live streams from its creator. Users can connect with others, share their daily lives, and participate in events. It's a dedicated space for members to interact and engage.

**Highlights:** Exclusive content access, Live streaming, Community interaction, Event participation, User-generated daily posts

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| C-Place メンバーシップ | $14.49 | per month |


## Frequently asked questions

### Is OSIRO オシロ free?

OSIRO オシロ is free to download, with no in-app purchases.

### Is C free?

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

### Which has better reviews, OSIRO オシロ or C?

OSIRO オシロ and C are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do OSIRO オシロ or C have ads?

Neither OSIRO オシロ nor C shows ads.

### Which is updated more often, OSIRO オシロ or C?

OSIRO オシロ ships an update fortnightly, and C monthly. Most recently, OSIRO オシロ was updated on September 17, 2026 and C on August 20, 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.*