# Flumen vs PDF Reader Shelf

The clearest difference is in-app purchases: PDF Reader Shelf at none against Flumen's 1. PDF Reader Shelf also leads on update cadence (daily vs every 2 weeks). Flumen's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

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

Flumen ships an update every 2 weeks, PDF Reader Shelf daily. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Flumen | PDF Reader Shelf |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Size | 18 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Mathias Jaeger-Pedersen](https://appshunter.io/developer/1848104509) | [Salih ONUS](https://appshunter.io/developer/6775990804) |

## What reviewers say

### Flumen

[App page](https://appshunter.io/ios/app/flumen-ebook-reader/id6776182656)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flumen Pro | $6.99 | one-time |


### PDF Reader Shelf

[App page](https://appshunter.io/ios/app/pdf-reader-shelf/id6787750697)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flumen free?

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

### Is PDF Reader Shelf free?

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

### Do Flumen or PDF Reader Shelf have ads?

PDF Reader Shelf shows ads; Flumen does not.

### Which is updated more often, Flumen or PDF Reader Shelf?

Flumen ships an update every 2 weeks, and PDF Reader Shelf daily. Most recently, Flumen was updated on October 5, 2026 and PDF Reader Shelf 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.*