Comparison

SlabMath vs Grade Sync Pro

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

Head to head
About

SlabMath

This app helps collectors determine if grading their trading cards is financially worthwhile. It uses AI to analyze card condition, predict grade probabilities, and calculate expected returns after factoring in grading fees and market value.

Highlights
  • AI card condition analysis
  • Grade probability estimates
  • Market price insights
  • Expected value calculation
  • Grading decision verdict
  • Supports multiple TCGs
Features
Read full description

Should you grade your card? SlabMath gives you the answer — and the math to prove it. We're not just another grade predictor. Anyone can guess a grade. SlabMath tells you if grading is actually worth it by calculating your expected return after grading fees, shipping costs, and real market value. No more guessing. No more losing money on cards that weren’t worth the slab. THE SLABMATH DIFFERENCE Upload your card → Get a grade prediction → See what that grade sells for → Subtract grading costs → Get a clear verdict. Grade It. Sell Raw. Or Hold. SlabMath helps collectors make smarter grading decisions using real data and AI-powered analysis. HOW IT WORKS 1. Snap photos of your card’s front and back 2. AI analyzes centering, corners, edges, and surface condition 3. Receive grade probability estimates (10, 9, 8 or lower ranges) based on industry grading standards 4. View recent market sales data for similar graded cards 5. Factor in grading fees and associated costs 6. Get a data-driven verdict based on expected value FEATURES • AI-powered card condition analysis • Grade probability estimates based on major grading standards • Market price insights from recent sales • Expected value calculation after grading costs • Simple verdict: Grade It, Sell Raw, or Hold SUPPORTED TRADING CARD GAMES SlabMath works with many popular collectible trading card games and card sets from major fantasy, anime, and collectible franchises. WHY COLLECTORS TRUST SLABMATH • Grade prediction plus ROI analysis in one place • Market pricing based on recent sales data • Automatic grading cost calculations • Works across multiple major trading card games Try your first scan free. Upgrade for unlimited access. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Disclaimer SlabMath is an independent card grading analysis tool and is not affiliated with, endorsed by, or sponsored by any trading card publishers, brands, or grading companies. All trademarks, game titles, and brand names are the property of their respective owners.

About

Grade Sync Pro

This AI-powered tool helps trading card enthusiasts identify, analyze, and estimate the condition of collectible cards. It provides detailed grading analysis, centering tools, and market price insights to assist collectors and investors.

Highlights
  • AI card identification
  • AI grading analysis
  • Advanced centering tool
  • PSA submission preparation
  • Market price insights
  • Personal card inventory
Features
Read full description

Scan a card. Know if it’s worth PSA before you pay $60 and wait five months. AI estimate plus centering (left/right, top/bottom) for Pokémon and sports. Not an official grade. Build the list, track the order, same account on iPhone and web. AI Card Identification Simply take a photo of your card and Grade Sync Pro will instantly identify: • Card name • Set and series • Year • Rarity • Player or Pokémon • Card references and details No manual searching required. AI Card Grading Analysis Our AI evaluates your card using professional grading factors similar to PSA and Beckett. Get instant analysis of: • Centering • Corners • Edges • Surface • Overall estimated grade Know whether your card is worth grading before submitting it. Advanced Centering Tool Grade Sync Pro includes professional centering analysis: • Top / Bottom ratio • Left / Right ratio • Grading estimate alignment PSA Submission Preparation Prepare grading submissions in minutes. Grade Sync Pro helps you: • Build submission lists • Track grading status • Manage bulk card submissions • Export submission data Collectors can prepare hundreds of cards quickly. Market Price Insights Evaluate card value using recent market sales data. See estimated value ranges based on recent transactions. Perfect for collectors and investors. Personal Card Inventory Track your graded cards in one place. Store: • Certification numbers • Card images • Grade details • Collection value Manage your entire collection easily. Built for the Hobby Grade Sync Pro is designed for: • Pokémon collectors • Sports card collectors • Hobby shops If you collect trading cards, Grade Sync Pro gives you professional tools to evaluate and manage your collection. Start scanning your cards today and discover the power of AI grading. Privacy Policy URL and ensure https://gsp.cards/privacy Terms of Use (EULA) —Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ • Card investors • Bulk submitters This helps collectors determine whether a card can achieve PSA 10 or higher.

Screenshots

SlabMath4 screens
Grade Sync Pro4 screens

Verdict

The call

The clearest difference is ads: Grade Sync Pro at none against SlabMath's shown. SlabMath's advantage is iOS requirement (14.0 vs 18.0). On price, rating, ratings volume and in-app purchases 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. SlabMath sells 3 in-app purchases, starting at $4.99 per month and Grade Sync Pro sells 1 in-app purchase, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SlabMath against 5.0 for Grade Sync Pro. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Scorecard2 real differences · 8 level
SlabMath versus Grade Sync Pro: the parameters behind the verdict, then further details
ParameterSlabMathGrade Sync Pro
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequency—Every 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better18.0
Further details — not scored
Size8 MB30 MB
Age rating4+4+
DeveloperSLABMATH LLCMario Miron

In-app purchases

3 purchases

SlabMath

Subscriptions3
  • Pro$4.991 Month
  • Master$9.991 Month
  • Elite$49.991 Month
1 purchases

Grade Sync Pro

Subscriptions1
  • GSP Pro Monthly3 Days trial$24.991 Month

Questions

Is SlabMath free?
SlabMath is free to download, with in-app purchases available.
Is Grade Sync Pro free?
Grade Sync Pro is free to download, with in-app purchases available.
Which has better reviews, SlabMath or Grade Sync Pro?
SlabMath and Grade Sync Pro are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do SlabMath or Grade Sync Pro have ads?
SlabMath shows ads; Grade Sync Pro does not.

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