# KBReader vs SimpPDF Reader

The clearest difference is in-app purchases: SimpPDF Reader at none against KBReader's 1. SimpPDF Reader also leads on update cadence (daily vs every 4 months). KBReader's advantage is iOS requirement (7.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. KBReader sells 1 one-off in-app purchase. SimpPDF Reader asks for nothing beyond the download.

KBReader ships an update every 4 months, SimpPDF Reader daily. The most recent releases landed on September 13, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | KBReader | SimpPDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/kbreader-amazing-pdf-reader/id965653898/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free | — |
| Size | 12 MB | 1 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VLADYSLAV YERSHOV](https://appshunter.io/developer/879767497) | [Wei He](https://appshunter.io/developer/6783615797) |

## What reviewers say

### KBReader

[App page](https://appshunter.io/ios/app/kbreader-amazing-pdf-reader/id965653898)

This app allows you to view, organize, and share PDF documents. It supports encrypted files, custom folders, and easy transfer from computers. Export your PDFs to various cloud storage and email services.

**Highlights:** View, navigate, and zoom PDFs, Organize documents into folders, Support for encrypted PDFs, Transfer files via iTunes, Export to cloud services, Open PDFs from other apps

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ADs | $0.99 | one-time |


### SimpPDF Reader

[App page](https://appshunter.io/ios/app/simppdf-reader/id6783615795)

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

**In-app purchases:** none


## Frequently asked questions

### Is KBReader free?

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

### Is SimpPDF Reader free?

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

### Do KBReader or SimpPDF Reader have ads?

Neither KBReader nor SimpPDF Reader shows ads.

### Which is updated more often, KBReader or SimpPDF Reader?

KBReader ships an update every 4 months, and SimpPDF Reader daily. Most recently, KBReader was updated on September 13, 2026 and SimpPDF Reader on August 23, 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.*