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

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 noteSUM's 3. noteSUM's advantage is update cadence (monthly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. noteSUM sells 3 one-off in-app purchases. Random Topic：気づかれない会話デッキアプリ asks for nothing beyond the download.

noteSUM ships an update monthly, Random Topic：気づかれない会話デッキアプリ every 4 months. The most recent releases landed on September 8, 2026 and December 12, 2025 respectively.

## The numbers

| Metric | noteSUM | Random Topic：気づかれない会話デッキアプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 4 months |
| Size | 7 MB | 9 MB |
| Requires iOS | **14.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Kazuhiro Sawamura](https://appshunter.io/developer/620439638) | [Yoshikazu Takahashi](https://appshunter.io/developer/1557592781) |

## What reviewers say

### noteSUM

[App page](https://appshunter.io/ios/app/notesum/id1553539735)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Number of History records | $0.99 | one-time |
| Number of Favorites | $0.99 | one-time |
| Hide Ads | $2.99 | one-time |


### 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


## Frequently asked questions

### Is noteSUM free?

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

### 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.

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

Both noteSUM and Random Topic：気づかれない会話デッキアプリ show ads.

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

noteSUM ships an update monthly, and Random Topic：気づかれない会話デッキアプリ every 4 months. Most recently, noteSUM was updated on September 8, 2026 and Random Topic：気づかれない会話デッキアプリ on December 12, 2025.

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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.*