PSA

Whether you like it or not, PSA is the most popular grading platform in the market right now, so it would be smart to have it with you at all times.

The PSA app is essential for collectors who care about grading, slabs, or long-term card value. You can use it to scan and research cards, verify PSA certification numbers, look up sales and active listings, manage grading submissions, and so much more. Even if you don’t submit cards often, the app is still useful for research.

The ability to verify a card’s authenticity makes the app worth it. If you’re buying a PSA-graded card online or in person, checking the certification number helps you confirm that the slab information matches what you’re seeing. Of course, that doesn’t replace common sense when buying, but it gives you an important extra layer before spending serious money.

The research tools also help when you’re deciding whether a card is worth grading. Population data, recent sales, and current listings can give you a better idea of whether grading fees make sense. For raw-card collectors trying to move into graded cards, PSA’s app is one of the most useful tools to keep on your iPhone.