# KReader Tool vs PDF Stash

The clearest difference is in-app purchases: PDF Stash at none against KReader Tool's 3. PDF Stash also leads on update cadence (every 3 weeks vs every 7 months). KReader Tool's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. KReader Tool sells 3 one-off in-app purchases. PDF Stash asks for nothing beyond the download.

KReader Tool ships an update every 7 months, PDF Stash every 3 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | KReader Tool | PDF Stash |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Size | 17 MB | 15 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [红霞 范](https://appshunter.io/developer/1760268341) | [Kazuhisa Kobayashi](https://appshunter.io/developer/1580882000) |

## What reviewers say

### KReader Tool

[App page](https://appshunter.io/ios/app/kreader-tool/id6736695506)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KReader Upgrade to family | $0.99 | one-time |
| KReader Pro | $2.99 | one-time |
| KReader Pro FamilyShare | $3.99 | one-time |


### PDF Stash

[App page](https://appshunter.io/ios/app/pdf-stash-offline-organizer/id6747885153)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KReader Tool free?

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

### Is PDF Stash free?

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

### Do KReader Tool or PDF Stash have ads?

PDF Stash shows ads; KReader Tool does not.

### Which is updated more often, KReader Tool or PDF Stash?

KReader Tool ships an update every 7 months, and PDF Stash every 3 weeks. Most recently, KReader Tool was updated on October 7, 2026 and PDF Stash on October 9, 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.*