# Flumen vs Aventurine

The clearest difference is update cadence: Aventurine at daily against Flumen's every 9 days. Aventurine also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Flumen sells 1 one-off in-app purchase and Aventurine sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Flumen ships an update every 9 days, Aventurine daily. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flumen | Aventurine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (3 ratings)](https://appshunter.io/ios/app/aventurine/id6781567281/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Daily** |
| Monetization | — | Freemium |
| Size | 16 MB | 85 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Mathias Jaeger-Pedersen](https://appshunter.io/developer/1848104509) | [KAZI ARIF ANWAR](https://appshunter.io/developer/6781567283) |

## 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 |


### Aventurine

[App page](https://appshunter.io/ios/app/aventurine/id6781567281)

Discover books based solely on their opening pages, without seeing the title, author, or cover. If the writing captivates you, reveal the book and add it to your personal library. This app offers a thoughtful, hype-free approach to finding your next great read.

**Highlights:** Read anonymously before revealing book details, Judge books by writing, not cover, Save discovered books, Read public-domain classics, Build a personal library

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aventurine Monthly | $4.99 | per month |
| Annual | $39.99 | per year |


## Frequently asked questions

### Is Flumen free?

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

### Is Aventurine free?

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

### Do Flumen or Aventurine have ads?

Neither Flumen nor Aventurine shows ads.

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

Flumen ships an update every 9 days, and Aventurine daily. Most recently, Flumen was updated on October 22, 2026 and Aventurine on October 25, 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.*