# Random Topic：気づかれない会話デッキアプリ vs Constella

The clearest difference is in-app purchases: Random Topic：気づかれない会話デッキアプリ at none against Constella's 6. Constella's advantage is ads (none vs shown) and update cadence (every 10 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Constella sells 6 in-app purchases, starting at $7.99 per month. Random Topic：気づかれない会話デッキアプリ asks for nothing beyond the download.

Random Topic：気づかれない会話デッキアプリ ships an update every 4 months, Constella every 10 days. The most recent releases landed on December 12, 2025 and August 24, 2026 respectively.

## The numbers

| Metric | Random Topic：気づかれない会話デッキアプリ | Constella |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (8 ratings)](https://appshunter.io/ios/app/constella-your-digital-brain/id6670701631/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | — | Freemium |
| Size | 9 MB | 86 MB |
| Requires iOS | **15.2** | 16.4 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yoshikazu Takahashi](https://appshunter.io/developer/1557592781) | [Nora Studios](https://appshunter.io/developer/1697592179) |

## What reviewers say

### Random Topic：気づかれない会話デッキアプリ

[App page](https://appshunter.io/ios/app/random-topic/id1630295892)

**In-app purchases:** none


### Constella

[App page](https://appshunter.io/ios/app/constella-your-digital-brain/id6670701631)

Capture thoughts, synthesize ideas, and automate workflows in one place. This AI-powered tool connects notes, emails, and tasks to surface insights and allows for instant semantic search. It adapts to various thinking styles, making it ideal for professionals and creatives.

**Highlights:** Instant thought capture with text and images, AI synthesis across notes, emails, and apps, Semantic instant search, Smart automations and task delegation, Sync across devices, Integrates with Notion, Google Drive

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Base | $7.99 | per month |
| Ultra | $19.99 | per month |
| Base Yearly | $71.99 | per year |
| Ultra Yearly | $179.99 | per year |
| Stella Call Credits - Small | $2.99 | one-time |
| Stella Call Credits - Big | $5.99 | one-time |


## Frequently asked questions

### Is Random Topic：気づかれない会話デッキアプリ free?

Random Topic：気づかれない会話デッキアプリ is free to download, with no in-app purchases.

### Is Constella free?

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

### Do Random Topic：気づかれない会話デッキアプリ or Constella have ads?

Random Topic：気づかれない会話デッキアプリ shows ads; Constella does not.

### Which is updated more often, Random Topic：気づかれない会話デッキアプリ or Constella?

Random Topic：気づかれない会話デッキアプリ ships an update every 4 months, and Constella every 10 days. Most recently, Random Topic：気づかれない会話デッキアプリ was updated on December 12, 2025 and Constella on August 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.*