DeckAudit
DeckAudit is a mobile + web app that validates trading card game decklists against the exact tournament ruleset you select (format, banlist date, set legality, copy limits, sideboard rules). You scan cards with your camera or import from common decklist formats, then the app flags illegality, missing counts, ambiguous card names, and sideboard/main-deck issues. It also generates judge-friendly decklist PDFs and a share link for teammates. This is a combination traditional + AI app: traditional rules engines handle deterministic legality, while AI OCR helps read card names from scans and auto-corrects typos and language variants. The goal is boring but valuable: reduce tournament mistakes, speed up deck checks, and prevent avoidable penalties. Monetization is straightforward: freemium for casual validation, paid tiers for competitive players and stores running events.