Episteme Reader icon
Episteme Reader icon

Episteme Reader

Episteme Reader is an offline-first application designed for reading various document formats. It leverages native Android technologies and C++ libraries to provide a performant reading experience with customization capabilities.

Episteme Reader screenshot 1
Episteme Reader screenshot 2
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Episteme Reader screenshot 3

Cost / License

  • Freemium (Pay once)
  • Open Source (AGPL-3.0)

Application type

Platforms

  • Windows
  • Android
  • Android Tablet
  • F-Droid
  • Linux
  • Debian
  • Fedora
  • Arch Linux
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Features

Properties

  1.  Support for Themes
  2.  Privacy focused
  3.  Lightweight

Features

  1.  Portable
  2.  PDF annotation
  3.  Works Offline
  4.  Dark Mode
  5.  Full-Text Search
  6.  Spell Checking
  7.  Ad-free
  8.  No registration required
  9.  Text to Speech
  10.  No Tracking
  11.  Document Annotations
  12.  AzW Reader
  13.  AI Summarization

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Episteme Reader information

AlternativeTo Categories

News & Books, AI Tools & Services, Office & Productivity

GitHub repository

  •  1,193 Stars
  •  58 Forks
  •  148 Open Issues
  •   Updated  
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Our users have written 1 comments and reviews about Episteme Reader, and it has gotten 12 likes

Episteme Reader was added to AlternativeTo by Paul on and this page was last updated .

Comments and Reviews

   
gmork
0

Episteme you say.. Has a familiar clang to it

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Official Links

AppStores & Other Links

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What is Episteme Reader?

Episteme Reader is an offline-first application designed for reading various document formats. It leverages native Android technologies and C++ libraries to provide a performant reading experience with customization capabilities.

Features:

Supported Formats

  • Documents: PDF
  • E-books: EPUB, MOBI, AZW3
  • Text: MD, TXT, HTML

PDF Features

  • Viewing Modes: Vertical Scroll and Paginated view.
  • Ink Annotations: Draw directly on pages using Pen, Highlighter, and Eraser tools.
  • Text Annotations: Add text notes anywhere on the page using system or custom fonts.

E-Book Features

  • Parsing: Native parsing for MOBI/AZW3 via libmobi and EPUB via Jsoup.
  • Customization: Adjust font size, line spacing, and margins.
  • Custom Fonts: Support for importing user-provided font files (.ttf, .otf).

General

  • Text-to-Speech (TTS): Read documents aloud using the system TTS engine.
  • File Management: Built-in library organization.

Architecture

  • UI: 100% Jetpack Compose (Material3).
  • Architecture: MVVM with Unidirectional Data Flow.
  • Database: Room (SQLite) for metadata and annotations.
  • PDF Engine: pdfium-android (Native PDFium bindings).
  • EPUB Engine: Utilizes standard WebView for vertical scrolling mode, and a custom rendering engine for paginated mode.
  • Mobi Engine: Custom JNI bindings to libmobi.