Centering Check: TCG Card Tool

GCTCG

In-app purchases

About this app

Centering Check is your premium pocket-sized tool for measuring card centering with pixel-perfect precision and getting instant grade estimates.

Simply snap a photo or upload a screenshot of an online listing. Instead of worrying about perfect camera angles, our custom AI Auto-Detection Method instantly transforms your image into a flat, bird's-eye view, fixing any perspective distortion automatically. You have complete control to ensure absolute accuracy by manually adjusting the borders, giving you a precise look at the card's true centering in seconds.

Key Features:

✅ Evaluate Online Listings Instantly: Take a screenshot of any online listing and upload it directly. Our AI Auto-Detection Method removes the angle distortion and auto-detects all borders, letting you check if the card has a 10 centering grade before you even buy it.

✅ Batch Ranking: Select multiple photos or shoot cards one after another. Every card is measured, saved to your collection log, and ranked by centering in a single pass, so you find the grading candidates immediately.

✅ Pinch-to-Zoom: Zoom in on your card's edges to make pixel-perfect micro-adjustments before finalizing your measurements.

✅ Editable History: Every card you upload is automatically saved. Go back and review, edit, or compare past measurements anytime.

✅ Accurate Grade Estimates: Instantly see estimated centering grades tailored to the specific front and back thresholds of major grading companies: PSA, BGS, CGC and TAG.

✅ Multiple Card Games: Centering Check supports your favorite TCG - Pokemon, One Piece, MTG, Yu-Gi-Oh - and all sports cards.

✅ Front & Back Support: Easily toggle between front and back calculations to get a complete picture of your card's centering quality.

✅ Share Your Pulls: Generate a sleek, shareable image of your card with its centering measurements and grade estimates overlaid - perfect for sharing with buyers, sellers, or your community.

✅ Grading Standards Reference: A dedicated section with the official centering thresholds for every supported grading company, so you know exactly what each grade requires.

✅ Zero Interruptions: Focus entirely on your card's centering without annoying pop-ups or banners.

Stop wondering if your card is worth sending in for grading. Use Centering Check to evaluate your collection, prep your submissions, and buy or sell with confidence.

Ratings and reviews

Detects borders really good but when I upload only can upload one side at a time but can't differentiate between front and back. doesn't matter what you press. Scores change though when you press front or back. I want to upload from and back at the same time and choose what side is what.

Free weekly use limit at 10 otherwise it's very good to great.

This is really a great tool. Does exactly what it should. The auto-detection works great.

What’s new

Version 1.4.0 introduces:
◆ Batch ranking: scan multiple cards and see your best-centered results first.
◆ Front and back: pair both sides of a card for estimated combined centering grades.
◆ A new scan tab and clearer guidance for manual border adjustments.