# 9days vs RoomEight

The clearest difference is iOS requirement: 9days at 13.0 against RoomEight's 26.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 9days sells 3 one-off in-app purchases and RoomEight sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

9days ships an update weekly, RoomEight fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 9days | RoomEight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/9days-find-whats-wrong/id6748372552/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Ad-supported | — |
| Size | 97 MB | 1.2 GB |
| Requires iOS | **13.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [Ryuichi Aida](https://appshunter.io/developer/1553473481) | [Kawamata Koichiro](https://appshunter.io/developer/788575817) |

## What reviewers say

### 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 |


### RoomEight

[App page](https://appshunter.io/ios/app/roomeight/id6757898977)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Stage | $0.99 | one-time |
| Secret Book | $0.99 | one-time |
| Rewind Watch (Gold) | $0.99 | one-time |
| Secret Book x5 | $3.99 | one-time |
| Rewind Watch (Gold) x5 | $3.99 | one-time |
| Remove Ads | $29.99 | one-time |


## Frequently asked questions

### Is 9days free?

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

### Is RoomEight free?

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

### Do 9days or RoomEight have ads?

Both 9days and RoomEight show ads.

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

9days ships an update weekly, and RoomEight fortnightly. Most recently, 9days was updated on October 30, 2026 and RoomEight on October 31, 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.*