# アナイディ「unID」 vs Stardust

The clearest difference is in-app purchases: Stardust at none against アナイディ「unID」's 4. Stardust also leads on update cadence (daily vs every 2 months). アナイディ「unID」's advantage is ads (none vs shown) and iOS requirement (7.0 vs 14.0). On price, review sentiment and device support there is nothing between them.

Both are free to download. アナイディ「unID」 sells 4 one-off in-app purchases. Stardust asks for nothing beyond the download.

アナイディ「unID」 ships an update every 2 months, Stardust daily. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | アナイディ「unID」 | Stardust |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 92.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 26 MB | 28 MB |
| Requires iOS | **7.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [PLATFIELD INC.](https://appshunter.io/developer/687199497) | [Fixis, LLC](https://appshunter.io/developer/1827219655) |

## What reviewers say

### アナイディ「unID」

[App page](https://appshunter.io/ios/app/unid/id687199494)

A communication tool that allows for group messaging and free calls without requiring user registration. Easily manage multiple profiles and delete past conversations entirely, ensuring a private and secure messaging experience.

**Highlights:** No user registration required, Group messaging, Free calls, Multiple profile management, Complete message deletion (including recipient history), Email forwarding and simple browser messaging, Universal key for service authentication

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムサークル管理180日分 | $0.99 | one-time |
| プレミアムスクエア管理180日分 | $0.99 | one-time |
| プレミアムサークル管理365日分 | $1.99 | one-time |
| プレミアムスクエア管理365日分 | $1.99 | one-time |


### Stardust

[App page](https://appshunter.io/ios/app/stardust-sns/id6748839916)

This social networking app allows users to anonymously share their thoughts as 'stardust' into a virtual night sky. It offers a private space for personal reflections and a public timeline for viewing others' stardust, with no direct interaction features like comments or follows.

**Highlights:** Anonymous posting, No direct interaction (likes/comments), Private and public timelines, Save favorite posts, Categorized stardust ('nebulae'), No registration required

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

**In-app purchases:** none


## Frequently asked questions

### Is アナイディ「unID」 free?

アナイディ「unID」 is free to download, with in-app purchases available.

### Is Stardust free?

Stardust is free to download, with no in-app purchases.

### Do アナイディ「unID」 or Stardust have ads?

Stardust shows ads; アナイディ「unID」 does not.

### Which is updated more often, アナイディ「unID」 or Stardust?

アナイディ「unID」 ships an update every 2 months, and Stardust daily. Most recently, アナイディ「unID」 was updated on November 1, 2026 and Stardust on October 28, 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.*