# J2K Browser vs KeyFolder2

The clearest difference is update cadence: KeyFolder2 at every 15 months against J2K Browser's every 143 months. On price, in-app purchases, device support and iOS requirement 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, KeyFolder2 every 15 months. Both last shipped on October 3, 2026.

## The numbers

| Metric | J2K Browser | KeyFolder2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | Every 143 months | **Every 15 months** |
| Size | 30 MB | 28 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [leesop.com](https://appshunter.io/developer/567390705) | [Tatsuya Tobioka](https://appshunter.io/developer/363452280) |

## What reviewers say

### J2K Browser

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

**In-app purchases:** none


### KeyFolder2

[App page](https://appshunter.io/ios/app/keyfolder2-filelist-with-pin/id1594374317)

**In-app purchases:** none


## Frequently asked questions

### Is J2K Browser free?

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

### Is KeyFolder2 free?

KeyFolder2 is free to download, with no in-app purchases.

### Which is updated more often, J2K Browser or KeyFolder2?

J2K Browser ships an update every 143 months, and KeyFolder2 every 15 months. Most recently, J2K Browser was updated on October 3, 2026 and KeyFolder2 on October 3, 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.*