# Stardust vs ujiuji

The clearest difference is in-app purchases: Stardust at none against ujiuji's 3. Stardust also leads on update cadence (daily vs every 3 weeks) and device support (3 vs 1). ujiuji's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. ujiuji sells 3 one-off in-app purchases. Stardust asks for nothing beyond the download.

Stardust ships an update daily, ujiuji every 3 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Stardust | ujiuji |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | Ad-supported | — |
| Size | 28 MB | 28 MB |
| Requires iOS | **14.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Fixis, LLC](https://appshunter.io/developer/1827219655) | [Koji Yamada](https://appshunter.io/developer/1872827785) |

## What reviewers say

### 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


### ujiuji

[App page](https://appshunter.io/ios/app/ujiuji/id6758415466)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100コイン | $0.49 | one-time |
| 500コイン | $1.99 | one-time |
| 1200コイン | $3.99 | one-time |


## Frequently asked questions

### Is Stardust free?

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

### Is ujiuji free?

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

### Do Stardust or ujiuji have ads?

Stardust shows ads; ujiuji does not.

### Which is updated more often, Stardust or ujiuji?

Stardust ships an update daily, and ujiuji every 3 weeks. Most recently, Stardust was updated on October 30, 2026 and ujiuji on November 5, 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.*