# 404の海 vs OshiLock

The clearest difference is in-app purchases: 404の海 at none against OshiLock's 4. OshiLock's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. OshiLock sells 4 in-app purchases, starting at $2.99 per month. 404の海 asks for nothing beyond the download.

## The numbers

| Metric | 404の海 | OshiLock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 48 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | — | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Satoshi Sakuma](https://appshunter.io/developer/1791815850) | [Ryota Sato](https://appshunter.io/developer/1896614970) |

## What reviewers say

### 404の海

[App page](https://appshunter.io/ios/app/404-404/id6763805582)

**In-app purchases:** none


### OshiLock

[App page](https://appshunter.io/ios/app/oshilock/id6768906522)

Consolidate all your favorite idol's information in one place. This app uses AI to organize fan-submitted data, ensuring you never miss important events. Manage multiple favorites efficiently within a single, reliable community.

**Highlights:** AI-organized fan information, Event and media notifications, Multi-idol management, Categorized information feed, Calendar for saved events, Community comments and reporting

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard（月額） | $2.99 | per month |
| Unlimited（月額） | $5.99 | per month |
| Standard（年額） | $29.99 | per year |
| Unlimited（年額） | $59.99 | per year |


## Frequently asked questions

### Is 404の海 free?

404の海 is free to download, with no in-app purchases.

### Is OshiLock free?

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

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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.*