# ForgottenPhone vs CaseX（ケースエックス）| スマホの中の事件

The clearest difference is in-app purchases: ForgottenPhone at none against CaseX（ケースエックス）| スマホの中の事件's 3. ForgottenPhone also leads on iOS requirement (16.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CaseX（ケースエックス）| スマホの中の事件 sells 3 in-app purchases, starting at $1.99 per 7 days. ForgottenPhone asks for nothing beyond the download.

ForgottenPhone ships an update every 5 days, CaseX（ケースエックス）| スマホの中の事件 every 3 days. The most recent releases landed on October 14, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | ForgottenPhone | CaseX（ケースエックス）| スマホの中の事件 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 173 MB | 42 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 12+ |
| Developer | [C4.std](https://appshunter.io/developer/1478553722) | [rio nagasaki](https://appshunter.io/developer/1594001733) |

## What reviewers say

### ForgottenPhone

[App page](https://appshunter.io/ios/app/forgottenphone/id6745428651)

**Features:** macOS Compatibility

**In-app purchases:** none


### CaseX（ケースエックス）| スマホの中の事件

[App page](https://appshunter.io/ios/app/casex/id6809037928)

Investigate fictional smartphones to uncover hidden truths and solve compelling mysteries. Piece together fragmented digital evidence from various apps to reveal the complete story behind each case. This narrative-driven game offers bite-sized investigations perfect for quick play sessions.

**Highlights:** Examine fictional smartphone data, Solve narrative-driven mysteries, Multiple fictional app simulations, Hint system for assistance, Unlock new cases via invites, Notifications and Live Activities

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 週額 | $1.99 | per 7 days |
| Pro 月額 | $2.99 | per month |
| Pro 年額 | $19.99 | per year |


## Frequently asked questions

### Is ForgottenPhone free?

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

### Is CaseX（ケースエックス）| スマホの中の事件 free?

CaseX（ケースエックス）| スマホの中の事件 is free to download, with in-app purchases available.

### Do ForgottenPhone or CaseX（ケースエックス）| スマホの中の事件 have ads?

Both ForgottenPhone and CaseX（ケースエックス）| スマホの中の事件 show ads.

### Which is updated more often, ForgottenPhone or CaseX（ケースエックス）| スマホの中の事件?

ForgottenPhone ships an update every 5 days, and CaseX（ケースエックス）| スマホの中の事件 every 3 days. Most recently, ForgottenPhone was updated on October 14, 2026 and CaseX（ケースエックス）| スマホの中の事件 on October 26, 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.*