# Spine vs Spine

Spine and Spine both sit at 5.0 stars, but that hides the real split: 100% of Spine's written reviews are positive against 87% of Spine's. Spine also leads on iOS requirement (17.0 vs 26.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Spine holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 86 and 31 respectively. Written reviews point the same way: 100% of Spine's written reviews are positive against 87% of Spine's.

Spine ships an update weekly, Spine every 6 days. Both last shipped on November 9, 2026.

## The numbers

| Metric | Spine | Spine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (86 ratings)](https://appshunter.io/ios/app/spine-book-tracker/id6759875368/reviews)** | [4.8 (31 ratings)](https://appshunter.io/ios/app/spine-audiobook-player/id6764636615/reviews) |
| Number of ratings | **86** | 31 |
| Positive reviews | **100.0% of reviews** | 86.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Free | Free |
| Size | 42 MB | 15 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Tanner Flake](https://appshunter.io/developer/1810308106) | [Accelyze Inc.](https://appshunter.io/developer/1895859588) |

## What reviewers say

### Spine

[App page](https://appshunter.io/ios/app/spine-book-tracker/id6759875368)

Organize your reading life by creating tiered lists of books you've finished. Track your reading progress, see what friends are reading, and discover personalized recommendations.

**Highlights:** Create book tier lists, Track reading progress, Follow friends' reading habits, Discover personalized recommendations, Import Goodreads library, Log start and finish dates

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

**In-app purchases:** none


### Spine

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

This app offers a beautiful and intuitive audiobook listening experience. It streams from your personal cloud library, syncs with Hardcover, and gamifies listening habits with levels and streaks. Enjoy features like an inline player, automatic chapter support, and on-device intelligence for recaps and summaries.

**Highlights:** Inline audiobook player, Automatic chapter support, Hardcover sync, On-device intelligence for recaps, Listener levels and streaks, Shareable year-in-review recap, Lock screen and widget controls

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

**In-app purchases:** none


## Frequently asked questions

### Is Spine free?

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

### Is Spine free?

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

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

Spine is rated higher. Spine averages 5.0 out of 5 from 86 ratings, while Spine averages 4.8 from 31 ratings.

### Do Spine or Spine have ads?

Neither Spine nor Spine shows ads.

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

Spine ships an update weekly, and Spine every 6 days. Most recently, Spine was updated on November 9, 2026 and Spine on November 9, 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.*