# 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 86% 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 — 82 and 30 respectively. Written reviews point the same way: 100% of Spine's written reviews are positive against 86% of Spine's.

Spine ships an update weekly, Spine every 4 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Spine | Spine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (82 ratings)](https://appshunter.io/ios/app/spine-reading-tracker/id6759875368/reviews)** | [4.8 (30 ratings)](https://appshunter.io/ios/app/spine-audiobook-player/id6764636615/reviews) |
| Number of ratings | **82** | 30 |
| Positive reviews | **100.0% of reviews** | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free | Free |
| Size | 32 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-reading-tracker/id6759875368)

Log your reading progress, create custom tier lists of your favorite books, and discover new titles. Connect with friends to see their reading habits and share recommendations.

**Highlights:** Track reading progress, Create book tier lists, Follow friends' reading, Personalized recommendations, Import Goodreads library

**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 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 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 82 ratings, while Spine averages 4.8 from 30 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 4 days. Most recently, Spine was updated on October 28, 2026 and Spine on October 25, 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.*