# DeerReader vs Spine

The clearest difference is in-app purchases: Spine at none against DeerReader's 1. Spine also leads on update cadence (every 4 days vs every 5 weeks) and ratings volume (25 vs 2). DeerReader's advantage is review sentiment (100% vs 82%) and rating (5.0 vs 4.8). On price, ads and iOS requirement there is nothing between them.

Both are free to download. DeerReader sells 1 in-app purchase, starting at $9.99 per year. Spine asks for nothing beyond the download.

DeerReader holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Spine has 25 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of DeerReader's written reviews are positive against 82% of Spine's.

DeerReader ships an update every 5 weeks, Spine every 4 days. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | DeerReader | Spine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/deerreader-audiobook-player/id6748619971/reviews)** | [4.8 (25 ratings)](https://appshunter.io/ios/app/spine-audiobook-player/id6764636615/reviews) |
| Number of ratings | 2 | **25** |
| Positive reviews | **100.0% of reviews** | 81.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Paid | **Free** |
| Size | 27 MB | 15 MB |
| Requires iOS | 26.1 | **26.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Cloverfield Technologies LLC](https://appshunter.io/developer/1744210662) | [Accelyze Inc.](https://appshunter.io/developer/1895859588) |

## What reviewers say

### DeerReader

[App page](https://appshunter.io/ios/app/deerreader-audiobook-player/id6748619971)

Organize and listen to your digital audiobooks with a beautiful, intelligent player. Features adaptive UI, fast search, and automatic sorting into collections using AI. Enjoy a seamless listening experience with home screen widget access.

**Highlights:** Adaptive player UI matching audiobook cover, Fast, unified search for books and authors, Home screen widget for instant access, AI-powered automatic organization into collections, Intuitive playback controls, Support for large digital libraries

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Support Subscription | $9.99 | per year |


### 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 DeerReader free?

DeerReader 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, DeerReader or Spine?

DeerReader is rated higher. DeerReader averages 5.0 out of 5 from 2 ratings, while Spine averages 4.8 from 25 ratings.

### Do DeerReader or Spine have ads?

Neither DeerReader nor Spine shows ads.

### Which is updated more often, DeerReader or Spine?

DeerReader ships an update every 5 weeks, and Spine every 4 days. Most recently, DeerReader was updated on October 7, 2026 and Spine 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.*