Features & Capabilities

Card Centering Calculator is the ultimate tool for measuring your card’s centering ratios for grading. It supports Pokémon, One Piece, Lorcana, and sports cards like baseball, basketball, and football, offering real-time centering measurements and showing the highest potential grades from PSA, BGS, SGC, CGC, TAG, and ACE. AI-powered auto-detection combines with precise manual adjustments for ultra-accurate results.

Key features include front-and-back centering, a grading standards reference, advanced settings and visualizations for off-center cards, and compatibility with all card types. This makes it ideal for collectors, sellers, and buyers who want to maximize grading outcomes—while noting that other grading factors remain evaluated by the grading companies.

User Growth & Download Statistics

Contact the developer

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Developed by:
Jade Lizard Software LLC
Apple Apps Store
https://apps.apple.com/us/app/card-centering-calculator/id6661022837
Website:
https://www.jadelizardsoftware.com/card-centering-calculator

User Reviews

Reviewers broadly praise Card Centering Calculator for being easy to use and affordable, with positive notes about the free version and a one-time purchase option. Many report it can accurately estimate centering and grading when cards are photographed and aligned carefully, making it a helpful tool for hobbyists. However, persistent camera detection/calibration problems, the need for precise alignment, and inconsistent results reduce reliability. Ads and a paid upgrade model frustrate some users, with several calling for less intrusive monetization or clearer pricing. Overall, solid value for enthusiasts who can manage camera issues and pricing.
Pros
  • Easy to use and beginner-friendly
  • Affordable pricing with a one-time purchase option (no ongoing subscription)
  • Helps estimate centering and grading with high accuracy when cards are photographed and aligned carefully
  • Free version offers meaningful functionality and adds value for hobbyists
  • Useful tool for card enthusiasts to gauge centering before sending to grading services
Cons
  • Camera detection and calibration problems causing unreliable centering results
  • Accuracy heavily depends on precise card placement and camera leveling; misalignment yields unreliable scores
  • Ads and premium pricing gate features; some users dislike the subscription-like model and difficulty canceling
  • Limited/back-side capture issues and occasional missing features (e.g., flipping to a back photo)
Recent reviews
Great for measuring my cards! Got my 10s easy!
by We*****, 2026-05-15

Use this for Pre-Grade Centering at Shows. Really wish there was way for previous centering/image to see what it was. Overall easy to use!
by Sh*****, 2026-05-07

Camera sucks and can’t calibrate. It’s such a bad app
by ba*****, 2026-04-30
View all user reviews ›

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