Instantly measure the centering of trading cards using your phone. Get estimated grade tiers from major grading companies and track your collection strategy. Export and share your results.
5.0(2 ratings)
FreeIn-App Purchases
Best apps like Quantra: Trade & Buy Smarter
10+ similar apps compared and reviewed
4.8 avg rating
9 free apps
Updated September 2026
Whether you want more options like Quantra or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
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OffCenter - Card Centering
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