# Leaf & Spine vs Flumen

The clearest difference is iOS requirement: Leaf & Spine at 15.5 against Flumen's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Leaf & Spine sells 10 in-app purchases, starting at $0.99 per month and Flumen sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Leaf & Spine ships an update fortnightly, Flumen every 2 weeks. The most recent releases landed on September 13, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Leaf & Spine | Flumen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (7 ratings)](https://appshunter.io/ios/app/leaf-and-spine-reader-and-tracker/id6758519785/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 114 MB | 18 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Aqeeb Rizwan](https://appshunter.io/developer/1873308369) | [Mathias Jaeger-Pedersen](https://appshunter.io/developer/1848104509) |

## What reviewers say

### Leaf & Spine

[App page](https://appshunter.io/ios/app/leaf-and-spine-reader-and-tracker/id6758519785)

Enhance your reading experience with a distraction-free app that supports various formats like PDFs, EPUBs, audiobooks, and comics. Build daily reading habits with powerful tools, track your progress with detailed analytics, and personalize your digital library.

**Highlights:** Supports PDF, EPUB, CBR, CBZ, and Audiobooks, Smart EPUB annotation and note-taking, Text-to-Speech for audiobooks, Customizable themes and 3D bookshelf, Daily reading habit tracking and analytics, Immersive focus sessions with ambient environments

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Yearly | $9.99 | per year |
| Teal Stripes | $0.79 | one-time |
| Teal Labels | $0.99 | one-time |
| Teal Hearts | $0.99 | one-time |
| Teal Duotone | $0.99 | one-time |
| Teal Diamonds | $1.49 | one-time |
| Teal Stars | $1.49 | one-time |
| Teal Leaves | $1.49 | one-time |
| Teal Spiral | $1.99 | one-time |


### 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 |


## Frequently asked questions

### Is Leaf & Spine free?

Leaf & Spine is free to download, with in-app purchases available.

### Is Flumen free?

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

### Do Leaf & Spine or Flumen have ads?

Neither Leaf & Spine nor Flumen shows ads.

### Which is updated more often, Leaf & Spine or Flumen?

Leaf & Spine ships an update fortnightly, and Flumen every 2 weeks. Most recently, Leaf & Spine was updated on September 13, 2026 and Flumen on September 18, 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.*