About this app
Build smarter Yu-Gi-Oh! decks with a clean, fast experience. Browse the card database, view art in fullscreen, and organize Main/Extra/Side with rule-aware limits—no clutter, just speed. Highlights Instant search + history – Type and see results fast; recent searches stay handy. Powerful filters & sort – Filter by category/type and sort market price low↔high. List or grid view – Switch layouts anytime for easier browsing. Gorgeous images – Cached for speed. Tap to view full-screen with pinch & double-tap zoom. Share or copy image URL. Add to Deck, fast – Pick Main/Extra/Side, set quantity (max 3), with subtle haptic feedback. Deck Manager – Rename, duplicate, multi-select, select-all, and bulk delete. Deck details – Adjust quantities, move cards between sections, and see helpful rule checks. Export & import – Copy .ydk or JSON to share or back up decks. Import JSON in a tap. Themes – Light/Dark and brand color themes for a polished, personal look. Local first – Decks are stored on your device. Why duelists love it Clean UI, quick actions, smart defaults—and features that get out of the way so you can focus on strategy. Note: This app is not affiliated with or endorsed by KONAMI. Card names, images, and information belong to their respective owners. Privacy Policy: https://owlspeak.web.app/privacy Terms of Use: https://owlspeak.web.app/terms
Latest release
What’s New
Weekly plan is now available with three-day free trial. Some bug fixes & minor improvements.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 22, 2026 · 4:59 PM Free
Screenshots
