# AnomalyMuseum vs 9days

The clearest difference is in-app purchases: AnomalyMuseum at none against 9days's 3. AnomalyMuseum also leads on ratings volume (14 vs 1). 9days's advantage is update cadence (weekly vs every 7 months) and rating (5.0 vs 4.6). On price, ads and device support there is nothing between them.

Both are free to download. 9days sells 3 one-off in-app purchases. AnomalyMuseum asks for nothing beyond the download.

9days holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: AnomalyMuseum has 14 ratings behind it against 1, so its average is the more settled of the two.

AnomalyMuseum ships an update every 7 months, 9days weekly. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | AnomalyMuseum | 9days |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (14 ratings)](https://appshunter.io/ios/app/anomalymuseum/id6511211484/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/9days-find-whats-wrong/id6748372552/reviews)** |
| Number of ratings | **14** | 1 |
| Positive reviews | 84.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 182 MB | 97 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [YU HIRATA](https://appshunter.io/developer/1703247347) | [Ryuichi Aida](https://appshunter.io/developer/1553473481) |

## What reviewers say

### AnomalyMuseum

[App page](https://appshunter.io/ios/app/anomalymuseum/id6511211484)

Navigate a mysterious art museum filled with anomalies. Follow simple rules to identify changes and progress through looping areas. Escape the museum by reaching Area 9.

**Highlights:** Anomaly detection gameplay, Progress through museum areas, Simple left/right controls, Tap to zoom, Over 40 anomaly types, Automatic saving, Offline play

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

**In-app purchases:** none


### 9days

[App page](https://appshunter.io/ios/app/9days-find-whats-wrong/id6748372552)

Explore your device's everyday apps for hidden digital anomalies. This game challenges you to find over 40 glitches within a 9-day investigation period, offering hyper-realistic interfaces and quick, satisfying detection sessions.

**Highlights:** Detect 40+ hidden anomalies, Hyper-realistic iOS interface, 9-day anomaly investigation challenge, Quick 10-minute detection sessions, Anomalies across Calendar, Weather, Messages, Browser

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Juice Tip | $0.99 | one-time |
| Coffee Tip | $2.99 | one-time |
| Sandwich Tip | $5.99 | one-time |


## Frequently asked questions

### Is AnomalyMuseum free?

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

### Is 9days free?

9days is free to download, with in-app purchases available.

### Which has better reviews, AnomalyMuseum or 9days?

9days is rated higher. AnomalyMuseum averages 4.6 out of 5 from 14 ratings, while 9days averages 5.0 from 1 ratings.

### Do AnomalyMuseum or 9days have ads?

Both AnomalyMuseum and 9days show ads.

### Which is updated more often, AnomalyMuseum or 9days?

AnomalyMuseum ships an update every 7 months, and 9days weekly. Most recently, AnomalyMuseum was updated on November 4, 2026 and 9days on October 30, 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.*