# J2K Browser vs 秘密のプライベートロックブラウザー

The clearest difference is update cadence: 秘密のプライベートロックブラウザー at every 70 months against J2K Browser's every 143 months. 秘密のプライベートロックブラウザー also leads on iOS requirement (8.0 vs 15.5). J2K Browser's advantage is device support (4 vs 2). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

J2K Browser ships an update every 143 months, 秘密のプライベートロックブラウザー every 70 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | J2K Browser | 秘密のプライベートロックブラウザー |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 143 months | **Every 70 months** |
| Size | 30 MB | 1 MB |
| Requires iOS | 15.5 | **8.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [leesop.com](https://appshunter.io/developer/567390705) | [Rikka Takanashi](https://appshunter.io/developer/1090786849) |

## What reviewers say

### J2K Browser

[App page](https://appshunter.io/ios/app/j2k-browser/id567390702)

**In-app purchases:** none


### 秘密のプライベートロックブラウザー

[App page](https://appshunter.io/ios/app/id1147897563)

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

**In-app purchases:** none


## Frequently asked questions

### Is J2K Browser free?

J2K Browser is free to download, with no in-app purchases.

### Is 秘密のプライベートロックブラウザー free?

秘密のプライベートロックブラウザー is free to download, with no in-app purchases.

### Which is updated more often, J2K Browser or 秘密のプライベートロックブラウザー?

J2K Browser ships an update every 143 months, and 秘密のプライベートロックブラウザー every 70 months. Most recently, J2K Browser was updated on October 3, 2026 and 秘密のプライベートロックブラウザー on October 12, 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.*