# Flumen vs Bookmook

Flumen and Bookmook are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Flumen sells 1 one-off in-app purchase and Bookmook sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Flumen ships an update every 9 days, Bookmook weekly. The most recent releases landed on October 22, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Flumen | Bookmook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Size | 16 MB | 13 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Mathias Jaeger-Pedersen](https://appshunter.io/developer/1848104509) | [L. Weber](https://appshunter.io/developer/894397824) |

## 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 |


### Bookmook

[App page](https://appshunter.io/ios/app/bookmook-book-tracker/id6789924474)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bookmook Premium – Monthly | $2.99 | per month |
| Bookmook Premium – Yearly | $19.99 | per year |


## Frequently asked questions

### Is Flumen free?

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

### Is Bookmook free?

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

### Do Flumen or Bookmook have ads?

Neither Flumen nor Bookmook shows ads.

### Which is updated more often, Flumen or Bookmook?

Flumen ships an update every 9 days, and Bookmook weekly. Most recently, Flumen was updated on October 22, 2026 and Bookmook on October 15, 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.*