Comparison

Grade Sync Pro vs UnSlabbed

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

Head to head
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.

About

UnSlabbed

Estimate the grading of your trading cards from photos before sending them for professional certification. Analyze centering, corners, edges, and surface, and check recent sales data for predicted grades. Save your grading history and share results.

Highlights
  • Photo-based card grading
  • Centering, corners, edges, surface analysis
  • Estimates grades for major services
  • Looks up sold comps for predicted grades
  • Credit system for grading
  • Grade remapping across companies
  • Grading history
  • Shareable grade images
Features
Read full description

UnSlabbed estimates a grade against the published standards of PSA, Beckett, CGC, SGC, TAG, and ACE from photos of a raw trading card, before you pay to slab it. Shoot the front and back. UnSlabbed measures centering, grades corners, edges, and surface, and looks up recent sold comps for that predicted grade. One credit = one AI grade. After a grade, switch companies to remap the result without spending another credit. History saves every card. Share a neon grade image if you want. Not affiliated with PSA, Beckett, CGC, SGC, TAG, or ACE. Results are unofficial estimates, not a certification. Quick Grade: free, unlimited on-device grading with a score range and defect marks. Upgrade to AI Full Grade for detailed subgrades and prices.

Screenshots

Grade Sync Pro4 screens
UnSlabbed3 screens

Verdict

The call

The clearest difference is ads: Grade Sync Pro at none against UnSlabbed's shown. UnSlabbed's advantage is update cadence (every 5 days vs every 3 weeks). 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. Grade Sync Pro sells 1 in-app purchase, starting at $24.99 per month and UnSlabbed sells 4 one-off in-app purchases. 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 Grade Sync Pro against 5.0 for UnSlabbed. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Grade Sync Pro ships an update every 3 weeks, UnSlabbed every 5 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Grade Sync Pro versus UnSlabbed: the parameters behind the verdict, then further details
ParameterGrade Sync ProUnSlabbed
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.018.0
Further details — not scored
Size30 MB19 MB
Age rating4+4+
DeveloperMario MironPhilip Disanto

Customer experience

Grade Sync Pro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

UnSlabbed

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Grade Sync Pro

Subscriptions1
  • GSP Pro Monthly3 Days trial$24.991 Month
4 purchases

UnSlabbed

One-time4
  • 20 Grades$4.99
  • Unlimited Centering$4.99
  • 50 Grades$9.99
Show 1 more
  • 120 Grades$19.99

Questions

Is Grade Sync Pro free?
Grade Sync Pro is free to download, with in-app purchases available.
Is UnSlabbed free?
UnSlabbed is free to download, with in-app purchases available.
Which has better reviews, Grade Sync Pro or UnSlabbed?
Grade Sync Pro and UnSlabbed are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Grade Sync Pro or UnSlabbed have ads?
UnSlabbed shows ads; Grade Sync Pro does not.
Which is updated more often, Grade Sync Pro or UnSlabbed?
Grade Sync Pro ships an update every 3 weeks, and UnSlabbed every 5 days. Most recently, Grade Sync Pro was updated on November 5, 2026 and UnSlabbed on October 31, 2026.

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