Flexbooru

Use the official Booru client to browse the most current and trending images daily, and also download them to set as your desktop wallpaper.

Features:

• Open source code;
• Synchronization with Danbooru 1.x, Danbooru 2.x, Moebouru, Gelbooru 0.2.x, Sankaku, Shimmie 2.x;
• Muzei support;
• Save images to both the device's memory card and internal storage;
• API key setup;
• Multiple options for quick image switching;
• Adding to a blacklist based on filters;
• Batch downloading of multiple files at once;
• Instant app launch;
• Intuitive image viewing based on personal queries;
• Horizontal and vertical display;
• Adding to Favorites.