Best Card Boss Grading Apps

249+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated October 2026

PREGRADE™ by CARD BOSS™ is the household name in card boss grading, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Card Boss Grading Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1PREGRADE™ by CARD BOSS™PREGRADE™ by CARD BOSS™Free3.7★ (27)NoYesOct 2026
2Slabmint: TCG Card GraderSlabmint: TCG Card GraderFree—NoYesOct 2026
3Card Centering CheckerCard Centering CheckerFree—NoYesJul 2026
4Cardaly - TCG Card ScannerCardaly - TCG Card ScannerFree—NoYesOct 2026
5Card Grading - Mint ConditionCard Grading - Mint ConditionFree—NoYesSep 2026
6Gradeon: TCG Card GradingGradeon: TCG Card GradingFree—NoNoOct 2026
7AXCI :AI Card Centering GraderAXCI :AI Card Centering GraderFree4.6★ (44)NoNoNov 2026
8Centering Check: TCG Card ToolCentering Check: TCG Card ToolFree4.7★ (56)NoYesOct 2026

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FAQ about Card Boss Grading

What are the best card boss grading apps for iPhone?
PREGRADE™ by CARD BOSS™ tops our card boss grading apps ranking as of October 2026, with a 3.7-star average from 27 App Store ratings, and it's free to download.
Yes — 20 of the top card boss grading apps we rank are free to download, including PREGRADE™ by CARD BOSS™ and Slabmint: TCG Card Grader.
PREGRADE™ by CARD BOSS™ has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ card boss grading apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.