About this app
Card Centering Calculator App is designed for trading card collectors, sports card investors, and TCG hobbyists who want to measure card centering with precision. Import a card photo or take one in-app, and the tool instantly calculates Left/Right and Top/Bottom ratios. Compare your card’s centering against grading standards from PSA, BGS, SGC, CGC, TAG, and ACE to understand grade potential before submitting. Features collectors need - Automatic centering detection from photos or camera - Exact ratios for Left/Right and Top/Bottom measurements - Grading scales included: PSA, BGS, SGC, CGC, TAG, ACE - Manual adjustments with sliders or drag handles - Visual overlays with outlines, fill bands, and center guides - Save results and organize your card collection - Camera capture guides to keep shots straight and level - Customizable settings for colors, overlays, and line styles Why collectors use it - Speed: Analyze a card in seconds without rulers or guesswork - Consistency: Same method for every card in your collection - Clarity: Visual overlays make centering easy to evaluate - Confidence: Compare to major grading company standards before you submit Disclaimer: This app provides centering estimates for educational purposes only. It is not affiliated with PSA, BGS, SGC, CGC, TAG, or ACE. Actual grades may differ. Privacy Policy: https://sites.google.com/view/allegrodigital/privacy-policy Terms of Use: https://sites.google.com/view/allegrodigital/terms-of-use
Latest release
What’s New
Bug fixes and performance improvements
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 22, 2026 · 2:59 AM Free
Screenshots
