# Éist — Audiobook Reader > Éist (Irish for "listen", pronounced "aysht") is an offline-first iOS and Android audiobook reader that turns any English EPUB or PDF into a natural-sounding audiobook using on-device AI text-to-speech. Works 100% offline, never uploads book content, no ads, unlimited free listening, with optional premium voices. Key facts: - **What it does:** Converts EPUB and PDF files into audiobooks via on-device TTS. No cloud upload of book content. - **Platforms:** iOS (App Store ID 6759532747) and Android (Play package `io.eist.app`). - **Pricing model:** Free unlimited use with default voices; optional one-time or subscription unlock for premium Apple Neural / Kokoro voices. - **Languages:** English-only synthesis today. Frequently used by non-native English speakers for listening practice. - **Privacy:** No account, no cloud transmission of book content, anonymous analytics with opt-out. - **Founder:** William O'Meara, based in Ireland. - **Built:** 2025. Wikidata entity: Q139831169. ## Foundational pages - [Homepage](https://eist.app/): What Éist is and how it works. - [About](https://eist.app/about): Founder story and design philosophy. - [Pricing](https://eist.app/pricing): What's free, what's premium, no subscription required. - [Compare](https://eist.app/compare): Éist vs Audible, vs Speechify, vs Voice Dream Reader. - [Privacy](https://eist.app/privacy): GDPR-compliant data handling. ## Library hubs (free public-domain audiobooks) - [Library — all free audiobooks](https://eist.app/listen): Index of every public-domain audiobook available to stream in-browser before installing the app. - [Browse by author](https://eist.app/listen/by): Author hubs (Project Gutenberg sourced). - [Browse by genre](https://eist.app/listen/genre): Genre hubs (mystery, sci-fi, philosophy, etc.). ## Pillar guides - [The complete guide to converting EPUB to audiobook](https://eist.app/blog/the-complete-guide-to-converting-epub-to-audiobook) - [How to listen to EPUB files as audiobooks](https://eist.app/blog/how-to-listen-to-epub-files-as-audiobooks) - [How to listen to PDFs as audiobooks — complete guide](https://eist.app/blog/how-to-listen-to-pdfs-as-audiobooks-complete-guide) - [The complete guide to text-to-speech apps 2026](https://eist.app/blog/the-complete-guide-to-text-to-speech-apps-2026) ## How-to articles - [How to convert PDF to audio without uploading files](https://eist.app/blog/how-to-convert-pdf-to-audio-without-uploading-files) - [How to export EPUB from Kindle and listen as audiobook](https://eist.app/blog/how-to-export-epub-from-kindle-and-listen-as-audiobook) - [How to download Project Gutenberg books](https://eist.app/blog/how-to-download-project-gutenberg-books) - [How to listen to EPUB files on iPhone](https://eist.app/blog/how-to-listen-to-epub-files-on-iphone) - [How to listen to EPUB files on Android](https://eist.app/blog/how-to-listen-to-epub-files-on-android) ## Comparison and review articles - [Éist vs Audible](https://eist.app/blog/eist-vs-audible-comparison) - [Best audiobook app for commuters](https://eist.app/blog/best-audiobook-app-for-commuters) - [Best free PDF-to-speech apps 2026](https://eist.app/blog/best-free-pdf-to-speech-apps-2026) - [Best EPUB readers with built-in TTS](https://eist.app/blog/best-epub-readers-with-built-in-text-to-speech) - [Best free public-domain audiobooks](https://eist.app/blog/best-free-public-domain-audiobooks) - [Top audiobook apps for iPhone 2026](https://eist.app/blog/top-audiobook-apps-for-iphone-2026) - [Top audiobook apps for Android 2026](https://eist.app/blog/top-audiobook-apps-for-android-2026) - [EPUB to MP3 vs text-to-speech — which is better?](https://eist.app/blog/epub-to-mp3-vs-text-to-speech-which-is-better) - [Offline vs cloud text-to-speech — which is better?](https://eist.app/blog/offline-vs-cloud-text-to-speech-which-is-better) ## Audience-specific guides - [Reading academic PDFs aloud for students](https://eist.app/blog/reading-academic-pdfs-aloud-for-students) - [Where to find free audiobooks online legally](https://eist.app/blog/where-to-find-free-audiobooks-online-legally) - [10 best mystery novels — public-domain audiobooks](https://eist.app/blog/10-best-mystery-novels-public-domain-audiobook) - [15 best non-fiction books on Project Gutenberg](https://eist.app/blog/15-best-non-fiction-books-on-project-gutenberg) ## Machine-readable feeds - [Sitemap index](https://eist.app/sitemap-index.xml) - [Blog RSS](https://eist.app/rss.xml) - [Free audiobook catalogue podcast feed](https://eist.app/podcast.xml) ## Contact - General: hello@eist.app - Privacy / data requests: privacy@eist.app - Support: support@eist.app - Bug reports: bugs@eist.app