# 大侦探 vs Supernatural Note

The clearest difference is in-app purchases: 大侦探 at none against Supernatural Note's 8. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Supernatural Note sells 8 one-off in-app purchases. 大侦探 asks for nothing beyond the download.

大侦探 ships an update every 16 months, Supernatural Note every 13 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 大侦探 | Supernatural Note |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (9 ratings)](https://appshunter.io/ios/app/supernatural-note/id6443949666/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 16 months | **Every 13 months** |
| Monetization | — | Free with in-app purchases |
| Size | 132 MB | 451 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [煜 蒋](https://appshunter.io/developer/570632778) | [建国 周](https://appshunter.io/developer/1242776801) |

## What reviewers say

### 大侦探

[App page](https://appshunter.io/ios/app/id1330118560)

**Features:** macOS Compatibility

**In-app purchases:** none


### Supernatural Note

[App page](https://appshunter.io/ios/app/supernatural-note/id6443949666)

Explore a deserted school building haunted by a decade-old tragedy. Uncover the truth behind strange campus events and supernatural occurrences.

**Highlights:** Investigate supernatural events, Explore a haunted school, Uncover a decade-old mystery, Engaging narrative, Atmospheric horror

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove AD | $0.99 | one-time |
| Unlock Chapter 3 | $0.99 | one-time |
| Novice gift bag 28 gold coins | $0.99 | one-time |
| 14 gold coins | $0.99 | one-time |
| 30 gold coins | $1.99 | one-time |
| 70 gold coins | $3.99 | one-time |
| 160 gold coins | $6.99 | one-time |
| VIP Gift Bag | $17.99 | one-time |


## Frequently asked questions

### Is 大侦探 free?

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

### Is Supernatural Note free?

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

### Do 大侦探 or Supernatural Note have ads?

Both 大侦探 and Supernatural Note show ads.

### Which is updated more often, 大侦探 or Supernatural Note?

大侦探 ships an update every 16 months, and Supernatural Note every 13 months. Most recently, 大侦探 was updated on October 26, 2026 and Supernatural Note on October 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.*