Claude Watermark Detector & Remover vs CardGrade

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Claude Watermark Detector & Remover compared with CardGrade
Detail	Claude Watermark Detector & Remover	CardGrade
What it does	Check text for possible Claude AI involvement and understand how Claude's text watermark works	AI card grading that predicts PSA, BGS, and CGC outcomes in 60 seconds
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Free	Freemium
Pricing	Not given	Hobby $4.99/month (10 credits), Starter $9.99/month (25 credits), Pro $24.99/month (80 credits), Business $74.99/month (300 credits). Annual plans: Hobby $47.99/year, Starter $95.99/year, Pro $239.99/year, Business $719.99/year. One-time credit packs from $9.99 (20 credits) to $99.99 (285 credits).
Key features	Detect possible Claude-style watermark signals Explain how Claude's SynthID-style watermarking works Analyze text up to 30,000 characters Display AI-likelihood heuristic score Connect to humanizer API for rewriting Clear detector labeling	16 inspection zones covering corners, edges, centering, and surface 60-second grade predictions PSA, BGS, and CGC grade predictions with confidence scores Forensic Capture macro close-up analysis on Pro and Business plans Bulk grading for 10-50 cards at once Chrome extension for grading cards while browsing iOS and Android mobile apps Smart capture guide with real-time lighting and angle feedback Market value estimates for graded cards API access with webhooks on Pro and Business plans
What makes it different	Science-first approach explaining SynthID-style statistical watermarking, not fake hidden-character claims Privacy-first interface with no tracking or data retention claims Honest about detection limits: requires Anthropic's watermark key for official verification	Photo-based pre-screening avoids months-long mail-in turnaround times Trained on thousands of card images across all major trading card types 2-grade credit-back guarantee if predictions miss Detailed per-pillar subgrades showing exactly where cards lose points Works across all major trading card categories including Pokémon, sports, and TCG
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 no change since last check	33 +1 (up) since last check
Trust Flow (Majestic)	3	9
Citation Flow (Majestic)	20	36
Referring domains (Majestic)	21	125

4 details filled in for both companies.

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