@QuickBooks might be the biggest scam in the world. You can sign up in 30 seconds but must call during business hours and wait on hold for two hours to cancel your membership.
#1 and probably the only one id use consistently is Rips by triumph. This feels like the best put together app. Card values are inflated, but thats a benefit to you when selling back. I never felt that I got fleeced on a pack, but ceilings aren’t astronomically high either, which makes sense. I like slowly buying cheaper packs as my value diminished in hopes of earning just enough to buy another mid priced pack. Downside: $5 shipping each card vs bundling together everything I want to ship to myself.
Disclaimer; their arcade app should have the same signup and guardrails as a casino.
@Courtyard_io - specifically themed packs. Full arts, PSA 10 only etc. felt like the value was awesome. The 6% they take to sell back is criminal. Shipping was ok. The website itself gave me a ton of issues. The app was marginally better. Theyre my #2 pick strictly because of the value in the stated packs
@Nortier I built slabmath the websites live and app is under review for IOS. Scan a card for a grade prediction and a ROI calculator to see if its actually worth grading