App Settings
The mobile app provides comprehensive settings to customize your reading experience and app behavior. These settings are stored locally on your device and are not synced across devices.
Preferences
Theme
A light and dark theme is available by default. The ebook reader has more options available.
Accent Color (iOS only)
Customize the app’s accent color using a color picker. This affects buttons and other interactive elements throughout the app.
Language
Currently, only English is supported. Additional languages are planned for future releases.
Configure the app’s display language.
Default Server
Quick access to switch between your configured servers. See the default server guide for more information about server management.
Thumbnail Ratio
Choose how book covers and thumbnails are displayed:
- 1 : 1.6 - Taller, an uncommon but standard ebook aspect ratio
 - 1 : 1.5 - Default, the standard aspect ratio for western books and American comics
 - 1 : √2 - Shorter, another common aspect ratio for books and the standard aspect ratio for Japanese manga
 
Reading
Reader Settings
Access comprehensive reader configuration options. This opens a dedicated settings screen where you can configure:
- Global reading preferences
 - Font and display settings
 - Navigation controls
 - Per-format reader options
 
These settings serve as defaults for all books and can be overridden on a per-book basis.
Stump Integration
You do not need a Stump server to use the app. Any OPDS v2-compatible server will work for basic catalog browsing and reading.
When disabled, the app simply hides any Stump-specific features:
- Only OPDS servers may be configured
 - Only OPDS servers are shown during server selection
 
A few important notes when Stump features are disabled:
- Existing Stump servers will still be stored, but hidden from view
 - You won’t get progress syncing, since that relies on Stump-specific APIs
 - Your OPDS server must support sending a 
readingOrderfor publications if you want streaming support 
Management
Data Usage
This functionality is not fully implemented yet and may change in future releases
Monitor and manage the app’s storage usage with detailed breakdowns:
- Total Usage: Overall storage consumed by the app
 - Per-Server Data: Usage categorized by each configured server
 - Data Categories: Downloads, cached images, preferences, and temporary files
 
Debug & Privacy
Image Cache Management
Clear cached images to free up storage space:
- Memory Cache: Clear images stored in RAM for current session
 - Disk Cache: Clear permanently cached images stored on device
 
Reduce Animations
Toggle to minimize or disable animations throughout the app. Useful for:
- Improving performance on older devices
 - Reducing motion for accessibility
 - Conserving battery life
 
Mask URLs
Privacy feature that obscures server URLs in the interface. This was added to help with debugging while ensuring that potentially sensitive information is not inadvertently shared