# CenterGrade App — Card Centering & Grade Predict > AI card centering analysis and grading prediction with market data. (iPhone/iPad app by Gabin Williams.) - Source: https://appshunter.io/ios/app/centergrade-app/id6759246214 (this page in markdown: same URL + `.md`) - Developer: [Gabin Williams](https://appshunter.io/developer/1877631093) - Category: Utilities, Entertainment - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 19 MB - Languages: English - Released: 2026-02-25 - Data updated: 2026-07-09 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/centergrade-app/id6759246214/reviews.md ## What is CenterGrade App? Stop guessing whether your card will hit a PSA 10. Start knowing — and know exactly what it's worth. CenterGrade is the only app that combines AI-powered centering analysis with real-time market intelligence. Measure centering, predict grades for 6 grading companies, check live card values, and calculate your return on investment — all before you spend a dime on grading fees. No subscription. No daily scan limits. No data leaving your phone. MARKET INTELLIGENCE — KNOW BEFORE YOU GRADE This changes everything. Search any trading card and instantly see real-time estimated values, interactive price history graphs, and Market Pulse liquidity scores. Market Pulse tells you whether a card is actually selling — not just listed. Investors and collectors finally have the data they need to make smart decisions. ROI CALCULATOR — MAXIMIZE EVERY SUBMISSION CenterGrade calculates your projected return for every grading company based on your predicted centering grades and current market prices. See exactly which grader gives you the highest profit margin. Stop submitting cards to the wrong company. HOW CENTERING ANALYSIS WORKS Point your camera at any trading card — or screenshot one from eBay, an auction listing, or anywhere. AI detects the outer card edge and inner border automatically, calculates left/right and top/bottom centering ratios, and delivers instant grade predictions. Takes about 5 seconds. Most centering apps fall apart on dark borders, holographic surfaces, and vintage stock. CenterGrade was built for exactly these cases. Cards on wood, granite, fabric, and other textured surfaces are detected reliably. A built-in leveling guide and auto-capture eliminate angle errors. SIX GRADING COMPANIES. ONE SCAN. See predictions for PSA, BGS, CGC, SGC, ACE, and TAG all at once. PSA and BGS predictions are always free. CGC, SGC, ACE, and TAG unlock with Pro. FRONT AND BACK — THE WAY PSA GRADES Scan the front, flip the card, scan the back. Both measurements factor into your predictions. Stop losing Gem Mints to a back centering problem you didn't know about. PRECISION TOOLS Center any card no matter how bad the photo. Drag pins to fine-tune borders. Pinch to zoom up to 15x. Screenshot card photos on ebay and center them before you invest. Undo and redo up to 20 steps. Ratios update live. FEATURES - Real-time card values and price history (Pro) - ROI calculator for every grading company (Pro) - Market Pulse liquidity scores — know if cards are selling (Pro) - AI border detection — dark borders, foil, holo, vintage - Instant preview — cards appear immediately, no loading - L/R and T/B centering ratios with overall score (0-100) - PSA and BGS predictions (free), CGC/SGC/ACE/TAG (Pro) - Front + back scanning as a linked pair - Collection manager with portfolio tracking - HD capture, 15x zoom, fine adjustment (Pro) - Shareable result cards - 100% on-device centering — images never leave your phone GO PRO — $4.99 ONE-TIME - Market Intelligence with live card values - ROI calculator and projected returns - Market Pulse liquidity scores - Price history graphs - All 6 grading company predictions - Unlimited collection - Ad-free experience - HD capture, 15x zoom, fine adjustment - Guide color and line thickness picker One price. Yours forever. No recurring charges. If CenterGrade saves you from even one bad submission, it pays for itself many times over. Works with Pokemon, baseball, basketball, football, hockey, One Piece, MTG, Yu-Gi-Oh!, Lorcana, and any card with borders. Privacy: https://centergradeapp.com/privacy Terms: https://centergradeapp.com/terms ## Key features - AI centering analysis - Grade predictions for 6 companies - Real-time card values - ROI calculator - Market Pulse liquidity scores - On-device processing ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | CenterGrade App Pro | $4.99 | one-time | | Coffee Tip | $0.99 | one-time | | Dinner Tip | $4.99 | one-time | | Pack Tip | $9.99 | one-time | | Lunch Tip | $2.99 | one-time | ## Frequently asked questions about CenterGrade App ### Does CenterGrade have ads? Yes, CenterGrade contains advertisements. The app is free to download and use, with optional in-app purchases for advanced features. ### What is the cost of CenterGrade Pro? CenterGrade Pro is available for a one-time purchase of $4.99. This unlocks features like real-time card values, ROI calculator, and Market Pulse liquidity scores. ### What grading companies does CenterGrade support? CenterGrade provides grade predictions for PSA, BGS, CGC, SGC, ACE, and TAG. PSA and BGS predictions are free, while CGC, SGC, ACE, and TAG require the Pro version. ### How accurate is CenterGrade's centering analysis? The app uses AI-powered border detection that is designed to be reliable even with dark borders, holographic surfaces, and vintage stock. It calculates left/right and top/bottom centering ratios for predictions. ### Can I use CenterGrade offline? The centering analysis is performed 100% on-device, meaning your images never leave your phone. However, features like real-time card values and market data require an internet connection. ### What devices is CenterGrade available on? CenterGrade is currently supported on iPhone devices. The app was last updated on April 16, 2026, with version 2.1.0. ### How often is CenterGrade updated? The app was last updated on April 16, 2026, indicating regular development and maintenance. Users can expect ongoing improvements and feature additions. ### What do users like about CenterGrade? Based on the limited rating data, CenterGrade has a perfect 5.0-star rating. Users likely appreciate the AI-driven accuracy, comprehensive grading company support, and valuable market insights. ## Version history (last 3 releases) ### 2.1.0 — 2026-04-16 Thanks for using CenterGrade! FIXED • Bug fixes and performance improvements Love CenterGrade? Leave a review — it helps more than you know! ### 1.0.1 — 2026-03-03 - Added grade disclaimer in Settings for transparency on how predictions work - Added Firebase Analytics for app improvements - Bug fixes and stability improvements ### 1.0 — 2026-02-25 No release notes. ## Apps similar to CenterGrade App | App | Rating | Price | Category | | --- | --- | --- | --- | | [Grade My Card](https://appshunter.io/ios/app/grade-my-card/id6744679963) | 4.7 (11) | Free | Utilities | | [Card Centering & Grading Tool](https://appshunter.io/ios/app/card-centering-and-grading-tool/id6751225884) | 4.7 (6) | Free | Utilities | | [Card Grader AI](https://appshunter.io/ios/app/card-grader-ai/id6752815462) | 5.0 (7) | Free | Utilities | | [Center Grade](https://appshunter.io/ios/app/center-grade/id6745772819) | — | Free | Utilities | | [Card Centering Calculator App](https://appshunter.io/ios/app/card-centering-calculator-app/id6753214988) | 4.4 (8) | Free | Utilities | | [Rectifi - Card Centering Tool](https://appshunter.io/ios/app/rectifi-card-centering-tool/id6759215052) | 4.9 (15) | Free | Utilities | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-09.*