Ludex

As card scanner apps go, Ludex is the one that adds eBay listing tools to a price guide and collection tracker.

Ludex is a sports and trading card game scanner app: you point your phone at a card, identify it, check what it is worth, and keep it in a digital collection.

It covers sports cards and TCG cards alike.

The free plan gives you unlimited scans in any category, but you can add only 60 cards to your collection.

Lite costs $4.99 a month and gives unlimited scans and a portfolio for one sport or TCG category, plus 200 monthly scans elsewhere.

Standard at $9.99 a month includes all features and 50 published eBay listings each month.

Pro is $24.99 a month with 250 listings.

If you only want to scan and look up prices, Ludex costs nothing.

Sellers are the ones who will end up on a paid tier.