# Cinder Reader vs Spine

The clearest difference is in-app purchases: Spine at none against Cinder Reader's 1. Spine also leads on update cadence (every 4 days vs every 3 weeks) and ratings volume (25 vs 8). Cinder Reader's advantage is review sentiment (100% vs 75%) and rating (5.0 vs 4.8). On price, ads and device support there is nothing between them.

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

Cinder Reader holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 8 and 25 respectively. Written reviews point the same way: 100% of Cinder Reader's written reviews are positive against 75% of Spine's.

Cinder Reader ships an update every 3 weeks, Spine every 4 days. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Cinder Reader | Spine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/cinder-reader/id6761286580/reviews)** | [4.8 (25 ratings)](https://appshunter.io/ios/app/spine-audiobook-player/id6764636615/reviews) |
| Number of ratings | 8 | **25** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 73 MB | 13 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 12+ | 12+ |
| Developer | [JESSE LAMAR MARTIN](https://appshunter.io/developer/1888667782) | [Accelyze Inc.](https://appshunter.io/developer/1895859588) |

## What reviewers say

### Cinder Reader

[App page](https://appshunter.io/ios/app/cinder-reader/id6761286580)

A modern, ad-free app for reading ebooks, comics, manga, and PDFs. Organize your personal library, import files from various sources, and customize your reading experience with flexible tools and appearance settings.

**Highlights:** Read ebooks, comics, manga, and PDFs, Import and manage personal library, Connect to content sources, Customize reader appearance, Track reading progress, Create highlights and notes, Organize with folders and filters

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cinder Pro Lifetime | $8.99 | one-time |


### Spine

[App page](https://appshunter.io/ios/app/spine-audiobook-player/id6764636615)

This app enhances audiobook listening with features like listener levels, daily streaks, and shareable year-end recaps. It offers a beautiful, integrated player and syncs with Hardcover, all while keeping your data private on-device.

**Highlights:** Integrated audiobook player, Listener levels and daily streaks, Hardcover sync, On-device AI summaries, Shareable year-in-review recap, Lock screen and widget controls

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Cinder Reader free?

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

### Is Spine free?

Spine is free to download, with no in-app purchases.

### Which has better reviews, Cinder Reader or Spine?

Cinder Reader is rated higher. Cinder Reader averages 5.0 out of 5 from 8 ratings, while Spine averages 4.8 from 25 ratings.

### Do Cinder Reader or Spine have ads?

Neither Cinder Reader nor Spine shows ads.

### Which is updated more often, Cinder Reader or Spine?

Cinder Reader ships an update every 3 weeks, and Spine every 4 days. Most recently, Cinder Reader was updated on September 21, 2026 and Spine on September 17, 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.*