# Midpoint - Card Centering Tool

> Midpoint - Card Centering Tool is a web app and a native mobile app (iOS and Android) that measures trading-card centering down to the millimeter and returns instant PSA, BGS, CGC, and TAG grade estimates. It helps collectors and resellers decide which cards are worth the $25–50 grading submission fee before they ship. Works on Pokemon, Magic: The Gathering, Yu-Gi-Oh!, sports cards, and any standard 63×88mm trading card.

Every analysis runs the same pipeline: custom ML model auto-detects the card edge and inner print frame, runs an AI cleanup pass that removes the background and straightens the card, and delivers a deep surface scan covering edges, corners, print, and holo — with a drag-to-align editor for fine-tuning.

## Product
- [Midpoint - Card Centering Tool — homepage](https://www.cardcenteringtool.com/): Interactive landing page with a draggable centering demo using real Pokemon cards. Showcases the analysis pipeline, the mobile apps, plus example analyses.
- [Open the web app](https://www.cardcenteringtool.com/measure): The measurement editor — upload a card photo and measure centering, right in the browser.
- [Midpoint on the App Store (iOS)](https://apps.apple.com/us/app/midpoint-card-centering-tool/id6772761539): Free native iPhone app — capture a card with the camera and measure centering on the spot. Same account and saved cards as the web app.
- [Midpoint on Google Play (Android)](https://play.google.com/store/apps/details?id=com.kolourr.cardcenteringtool): Free native Android app with camera-first measurement.
- [Pricing](https://www.cardcenteringtool.com/pricing): 2 free analyses on signup, then weekly or semi-annual subscription for unlimited measurements (purchasable on web via Stripe, and in-app via the App Store / Google Play).

## Grading standards
- [All grading standards](https://www.cardcenteringtool.com/grading-standards): Side-by-side centering tolerances for the four major graders, front and back.
- [PSA tolerances](https://www.cardcenteringtool.com/grading-standards/psa): Complete PSA front/back centering chart for grades 10 through 5, with notes on how PSA actually measures.
- [BGS tolerances + subgrade math](https://www.cardcenteringtool.com/grading-standards/bgs): Beckett's 4-subgrade system, Pristine 10 vs Gem Mint 10 vs Black Label.
- [CGC tolerances](https://www.cardcenteringtool.com/grading-standards/cgc): CGC centering by grade, plus the separate Pristine 10 tier.
- [TAG tolerances](https://www.cardcenteringtool.com/grading-standards/tag): TAG's AI grading on the 1–1000 numeric scale and how it maps to letter grades.

## Guides
- [What is card centering?](https://www.cardcenteringtool.com/guides/what-is-centering): Plain-English primer on what centering actually measures and why it caps grades.
- [How to photograph cards for accurate centering](https://www.cardcenteringtool.com/guides/how-to-photograph-cards): 5-rule phone-camera guide for getting a measurement-ready shot in 30 seconds.
- [Should I send this card to be graded?](https://www.cardcenteringtool.com/guides/should-i-grade-this-card): Decision framework with expected-value math for picking which cards earn the submission fee.
- [All guides](https://www.cardcenteringtool.com/guides): Index of every centering and grading guide.

## Blog
- [Blog](https://blog.cardcenteringtool.com): Ongoing articles on card grading, pre-grading techniques, market analysis, and new sets. Hosted on a separate subdomain with its own sitemap at https://blog.cardcenteringtool.com/sitemap.xml.

## Company
- [Contact](https://www.cardcenteringtool.com/contact): Support, billing, partnerships.
- [Privacy](https://www.cardcenteringtool.com/privacy): Privacy policy.
- [Terms](https://www.cardcenteringtool.com/terms): Terms of service.

## Optional
- [llms-full.txt](https://www.cardcenteringtool.com/llms-full.txt): Full inlined content of every grading-standards and guide page — answer detailed questions without crawling individual pages.
- [Sitemap](https://www.cardcenteringtool.com/sitemap.xml): Machine-readable list of every public page on the marketing site.
- [Blog sitemap](https://blog.cardcenteringtool.com/sitemap.xml): Machine-readable list of every blog post.