Audiobook Player for iOS & Android

Your audiobooks, wherever you are.

Auddio is a modern media center for your audiobooks. Import your own books, track your reading with Hardcover, play local files, and enjoy synchronized playback across your iPhone, iPad, and Android devices.

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iPhone & iPad Android

Auddio Fullscreen Player with Speed & Hardcover

One Unified Library

Everything in one place, on every device.

Browse by books, authors, series, and playlists with instant filtering. Your listening progress, smart chapters, custom bookmarks, and shelves stay in sync across iOS and Android.

Your Own Library Import your audiobooks and sync your shelves from Hardcover — your books, your progress, ready on every device.
Local Audiobook Files Point Auddio at folders on your device. MP3, M4B, AAC, and FLAC files are automatically tagged with chapter markers and cover art.
Offline Downloads Save entire books or individual chapters for flights, commutes, and spots with no cellular signal.

Built for Spoken Word

Engineered specifically for long-form listening.

Music players aren't built for 40-hour epics. Auddio is crafted with precision for multi-part chapter series, synchronized sentence transcripts, and sleep-friendly bedtime listening.

Synchronized Transcripts Read along with time-synchronized text highlighting sentence by sentence as narration plays.
Fine-Grained Speed & Pitch Fix Adjust speed from 0.5× to 3.0× with instant presets (1.0x, 1.2x, 1.5x, 2.0x, 2.5x, 3.0x) or continuous slider with pitch preservation.
Sleep Timer & Auto-Rewind Drift off peacefully. When playback stops, Auddio gently pauses and automatically rewinds 30 seconds when you resume.

Auddio Synchronized Transcripts on iPad Pro

Hardcover Integration

Your reading journal, synced in real time.

Seamlessly connect your Hardcover account. Auddio automatically syncs reading progress, updates your shelves, and tracks listening streaks without any manual bookkeeping.

Two-Way Shelf Sync Import audiobooks directly from your "Want to Read" shelf, and automatically mark books as "Currently Reading" and "Read" as you listen.
Detailed Listening Stats & Streaks Track hours listened, monthly charts, finished titles, and daily streaks right in Auddio.
Hardcover Badge on Player Instant one-tap access to your Hardcover book page and reading journal directly from the fullscreen player.

Auddio Listening Stats and Streaks on iPad Pro

Decentralized Ecosystem

An open addon engine that puts you in control.

Never be locked into a single bookstore or closed ecosystem. Install open community addons to integrate external sources, connect cloud libraries, and explore curated audiobook catalogs.

Open Integrations

Connect community-developed sources with intelligent metadata matching, candidate deduplication, and organized book formatting.

Cloud Streaming

Fast stream resolution and multi-part playback for connected cloud storage and remote providers, playing audio without local download delay.

Catalog Discovery

Browse genre chips and categorized shelves (Sci-Fi, Fantasy, Mystery, Non-Fiction) exposed dynamically by installed addons.

Everything Else

Built like a true audiobook player.

High-Res Spoken Audio

Native support for MP3, M4B, AAC, FLAC, and OPUS with lossless playback engines and smooth buffering.

Smart Chapter Extraction

Embedded chapter markers, chapter names, and part divisions extracted on the fly from container files.

Variable Speed & Pitch Fix

Fine-grained speed adjustments from 0.5× to 3.0× with pitch-preserving digital signal processing.

Sleep Timer & Auto-Rewind

Set a sleep timer that gently lowers volume and rewinds your track when you pick back up the next morning.

Instant Resume

One tap picks up exactly where you left off — synced across iPhone, iPad, and Android.

Hardcover Sync & Tracking

Two-way sync with Hardcover.app for automated reading progress, want-to-read imports, and listening journals.

Synchronized Text Transcripts

Follow along with sentence-by-sentence highlighted text transcripts synced to the audio narration.

Offline Chapter Downloads

Download individual chapters or entire series for offline listening when traveling without signal.

100% Open Protocol & SDK

Build custom sources in TypeScript, Node.js, Python, or Go using our open-source Addon SDK.

Get Auddio.

Available for iPhone, iPad, and Android.

Build your own addon? Read the Addon Developer Guide

TestFlight Beta (iOS) Android (Coming Soon) Join Discord