# シカクナンバーズ vs 9days

The clearest difference is in-app purchases: シカクナンバーズ at none against 9days's 3. シカクナンバーズ also leads on update cadence (every 2 days vs weekly) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. 9days sells 3 one-off in-app purchases. シカクナンバーズ asks for nothing beyond the download.

シカクナンバーズ ships an update every 2 days, 9days weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | シカクナンバーズ | 9days |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/9days-find-whats-wrong/id6748372552/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Ad-supported |
| Size | 74 MB | 97 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Rikuto Hosaka](https://appshunter.io/developer/1621064356) | [Ryuichi Aida](https://appshunter.io/developer/1553473481) |

## What reviewers say

### シカクナンバーズ

[App page](https://appshunter.io/ios/app/id6450410308)

**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 シカクナンバーズ free?

シカクナンバーズ is free to download, with no in-app purchases.

### Is 9days free?

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

### Do シカクナンバーズ or 9days have ads?

Both シカクナンバーズ and 9days show ads.

### Which is updated more often, シカクナンバーズ or 9days?

シカクナンバーズ ships an update every 2 days, and 9days weekly. Most recently, シカクナンバーズ was updated on October 30, 2026 and 9days on October 28, 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.*