Comparison

CenterGrade App vs OakGrade

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CenterGrade App

This app uses AI to analyze card centering and predict grading outcomes for multiple companies. It also provides real-time market data and ROI calculations to help collectors make informed decisions before submitting cards for grading.

Highlights
  • AI centering analysis
  • Grade predictions for 6 companies
  • Real-time card values
  • ROI calculator
  • Market Pulse liquidity scores
  • On-device processing
Features
Read full description

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

About

OakGrade

Features
Read full description

OakGrade es la forma más rápida de calificar y organizar tu colección de cartas Pokémon. Con solo tu cámara, OakGrade analiza tu carta y te entrega un grado profesional en minutos — evaluando centrado, esquinas, bordes y superficie, con inteligencia artificial entrenada específicamente para cartas coleccionables. CÓMO FUNCIONA • Escanea el frente, reverso y ángulo de tu carta con la guía en pantalla • Recibe tu grado OAKgrade junto con una comparación de referencia • Consulta el desglose detallado por zona: centrado, esquinas, bordes y superficie TU COLECCIÓN, ORGANIZADA • Guarda cada carta calificada en tu portafolio personal • Consulta el valor de mercado actualizado de tus cartas • Lleva el registro de qué cartas has enviado a graduar, conservado o vendido PENSADO PARA COLECCIONISTAS • Resultados en minutos, no en semanas • Sin necesidad de enviar tu carta por correo para una primera evaluación • Disponible en múltiples idiomas de carta OakGrade Pro desbloquea escaneos ilimitados y funciones adicionales para coleccionistas frecuentes. Nota: OakGrade ofrece una evaluación de referencia con inteligencia artificial y no sustituye la graduación oficial de servicios profesionales de terceros. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CenterGrade App4 screens
OakGrade4 screens

Verdict

The call

The clearest difference is update cadence: OakGrade at every 10 days against CenterGrade App's every 4 weeks. OakGrade also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CenterGrade App sells 5 one-off in-app purchases and OakGrade sells 1 in-app purchase, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CenterGrade App ships an update every 4 weeks, OakGrade every 10 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 7 level
CenterGrade App versus OakGrade: the parameters behind the verdict, then further details
ParameterCenterGrade AppOakGrade
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 weeksEvery 10 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size19 MB67 MB
Age rating4+4+
DeveloperGabin WilliamsJOSE LUIS AVILES CASTILLO

In-app purchases

5 purchases

CenterGrade App

One-time5
  • Coffee Tip$0.99
  • Lunch Tip$2.99
  • CenterGrade App Pro$4.99
Show 2 more
  • Dinner Tip$4.99
  • Pack Tip$9.99
1 purchases

OakGrade

Subscriptions1
  • OakGrade Pro$12.991 Month

Questions

Is CenterGrade App free?
CenterGrade App is free to download, with in-app purchases available.
Is OakGrade free?
OakGrade is free to download, with in-app purchases available.
Do CenterGrade App or OakGrade have ads?
Both CenterGrade App and OakGrade show ads.
Which is updated more often, CenterGrade App or OakGrade?
CenterGrade App ships an update every 4 weeks, and OakGrade every 10 days. Most recently, CenterGrade App was updated on October 31, 2026 and OakGrade on October 31, 2026.

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