Original Summary

I collect trade TCGs on the side and got tired of two things never knowing if a raw card was actually worth submitting for grading and not having one place to just look up real sold prices instead of guessing from eBay listings so I built JK Index core thing right now is a little game called Before the Slab you get shown a cards front and back already slabbed grade hidden and you guess what PSA gave it before its revealed sounds simple but its honestly humbling corners and edges lie to you constantly on camera theres also a faster 5 card version BTS Blitz if you just want to test your eye real quick no signup needed from there it kind of grew into a whole card research thing sold listings price history set browsing for Pokemon One Piece riftbound and Im building out portfolio tracking plus a small marketplace on top of it still very much in progress the what shipped page on the site has the honest changelog including the stuff thats still broken lol would love actual grading eye feedback from people who submit cards regularly thats the part I most want to get right Jkindex if anyone wants to poke at it would love if you try and give me a honest review   submitted by   /u/Popular_Double4000 [link]   [comments]

  • 情报分类：商业与市场研究
  • 分类依据：内容涉及商业、投资或市场动态
  • 信息来源：Reddit · SideProject
  • 发布时间：2026/9/22 21:22:58