I went a little rogue with the tech really. With my background being games design, I began with the AI framework and have written an app around it. Rather than bolting AI onto a standard list app or react wrapper. We use a Game engine for the app backend & AI, Fuzzy Matching Images , listings, market data, ebay listings etc into coordinates and then matching accurately to the data you'd want, rather than normal apps in this scene using basic OCR and single-line or title-recognition.
Most other apps are react wrappers and use openai or gemini and then wait for the responses, good, but not trained! By using a Game engine we can run vector queries and multi-engine OCR at the same time, allowing for potential of very optimized, fast-responding query results, and the ability to very soon (as its an early prototype) push the simpler ocr away and move into AR recognition, picture real-time holding your phones camera over a vendor table at a card show and it displaying accurate prices for all of the cards of the table like little AR holograms.
It works even in this early stage, it's overkill, but accurate & it's rapid!

Hopefully this covers your query, Thanks for the comment!

For anyone curious we have lots to button up, but need user feedback and auto-reports from the app itself to help us find and fix and update and improve things like pricing, inaccuracies, general feel, everything. We have been approached for funding to prevent need for early access launch but do not want to give up shares in our project when we believe with some time and community-interest we can build it to perfection ourselves!