# Leaf & Spine vs Reader King

The clearest difference is update cadence: Leaf & Spine at every 2 weeks against Reader King's every 4 weeks. Leaf & Spine also leads on iOS requirement (15.5 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Leaf & Spine sells 11 in-app purchases, starting at $0.99 per month and Reader King sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Leaf & Spine ships an update every 2 weeks, Reader King every 4 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Leaf & Spine | Reader King |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (7 ratings)](https://appshunter.io/ios/app/leaf-and-spine-reader-and-tracker/id6758519785/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 weeks |
| Monetization | Freemium | — |
| Size | 119 MB | 6 MB |
| Requires iOS | **15.5** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Aqeeb Rizwan](https://appshunter.io/developer/1873308369) | [lecoo](https://appshunter.io/developer/1630534948) |

## 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 (11)**

| 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 |
| Premium Unlock | $14.99 | one-time |


### Reader King

[App page](https://appshunter.io/ios/app/reader-king/id6785942008)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reader King Enhanced | $0.99 | one-time |


## Frequently asked questions

### Is Leaf & Spine free?

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

### Is Reader King free?

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

### Do Leaf & Spine or Reader King have ads?

Neither Leaf & Spine nor Reader King shows ads.

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

Leaf & Spine ships an update every 2 weeks, and Reader King every 4 weeks. Most recently, Leaf & Spine was updated on October 25, 2026 and Reader King on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*