Gruno - Comics Reader

In-app purchases
50+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Gruno is a powerful comic, manga, and book reader built for people who love organizing and reading their collection their way. Read offline, connect to OPDS catalogs, and keep your entire library in one clean place.

Whether you read manga, comics, or PDFs, Gruno gives you control over your library and your reading experience.

📚 What you can do with Gruno

📖 Read your way

Smooth horizontal or vertical reading

Right-to-left mode for manga

Stable reader for long sessions

Automatic reading progress

🗂 Organize your library

Manage large comic and manga collections easily

Sort by name or date

Multiple view modes: small grid, large grid, or detailed list

Fast thumbnail and list loading

🌐 OPDS support (experimental)

Connect to OPDS 1.2 and 2.0 servers

Browse online catalogs

Import content into your personal library

📦 Broad format support

CBR, CBZ, CB7

PDF

Image formats including WebP

🎨 Clean and customizable interface

Light and Dark themes

Consistent design focused on reading

⚡ Built for performance

Fast library navigation

Optimized memory usage

Stable even with large collections

⭐ Premium

Unlock advanced features with a subscription, or make a one-time purchase to unlock the current main version permanently.

🔒 Privacy

Gruno needs access to your device files to scan and open comics and PDFs stored locally.
Your files are never uploaded to external servers.
Updated on
Jan 26, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

What’s new

• New ways to view your library: small grid, large grid, or detailed list
• You can now sort your library by name or date
• Much faster library performance
• Covers and lists load faster
• More stable reading, especially during long sessions
• More reliable downloads
• New storage control: clear cover cache in Settings
• Smoother online browsing (OPDS), no freezing on large catalogs
• General stability improvements