# Spine vs Ondelia

Spine and Ondelia are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Spine ships an update every 6 days, Ondelia every 4 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Spine | Ondelia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (31 ratings)](https://appshunter.io/ios/app/spine-audiobook-player/id6764636615/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 86.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 4 days** |
| Monetization | Free | — |
| Size | 15 MB | 27 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Accelyze Inc.](https://appshunter.io/developer/1895859588) | [Jonathan Jayet](https://appshunter.io/developer/6809228482) |

## What reviewers say

### 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


### Ondelia

[App page](https://appshunter.io/ios/app/ondelia/id6809228480)

**Features:** macOS Compatibility, Siri integration, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spine free?

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

### Is Ondelia free?

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

### Do Spine or Ondelia have ads?

Neither Spine nor Ondelia shows ads.

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

Spine ships an update every 6 days, and Ondelia every 4 days. Most recently, Spine was updated on November 9, 2026 and Ondelia on November 6, 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.*