Test Squared vs Double Holo

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

Test Squared compared with Double Holo
Detail	Test Squared	Double Holo
What it does	Connect Amazon sellers with verified product testers for honest feedback	Pokemon card marketplace with live prices, card scanner, and 4.9% seller fees
Stage	Not given	Startup
Founded	Not given	2025
Based in	US	US
Pricing model	Not given	Freemium
Pricing	Startup: $175 base rate plus product cost and 10% service fee (5 tests per product). Velocity: $310 base rate plus product cost and 10% service fee (10 tests per product). Growth: $400 base rate plus product cost and 10% service fee (15 tests per product). An additional 12% fee applies only when sta	Marketplace: 4.9% seller fee on sales. Premium subscriptions: Smart Collector $8.99/month or $54.99/year; Serious Collector $19.99/month or $169.99/year. Free card scanner app. All annual plans include 3-day free trial.
Key features	Product-tester matching based on selection and product type Keyword feedback from testers Compliance with Amazon and FTC guidelines Staggered review distribution to prevent overwhelming accounts Average review rate over 90% Optional feedback and survey collection from testers Full PayPal reimbursement for testers	Live market prices for raw and graded Pokemon cards Grading ROI analysis comparing PSA, BGS, CGC, and TAG AI Card Picks for buy, sell, and hold recommendations Market alerts scanning 24/7 for underpriced cards and price spikes Advanced charting tools with RSI, MACD, and Bollinger Bands Pack expected value calculator for sealed products Social media sentiment analysis on Pokemon cards Slab Insights showing sales distribution and market range Collection tracker with portfolio value updates in real-time
What makes it different	Connects sellers with verified testers who have active Amazon accounts and review history Maintains Amazon and FTC compliance throughout the testing process Does not influence tester feedback or guarantee specific review outcomes Achieves high review submission rates of 80%+ Handles all logistics and reduces seller time and resources needed	Lowest marketplace fees at 4.9% seller fee versus 13.25% on eBay and 10.75% on TCGplayer Fastest Pokemon card scanner app at under 0.1 seconds per scan Real-time prices from 177,537 active collectors and marketplace data Grading ROI calculator simulates worst, average, and best case outcomes with Monte Carlo analysis Vendor tools including inventory management, automated repricing, and eBay/Shopify sync
Pays/accepts crypto	Not given	Not given
Instant seller payouts	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	16 +13 (up) since last check	46 no change since last check
Trust Flow (Majestic)	9	5
Citation Flow (Majestic)	38	18
Referring domains (Majestic)	431	64

5 details filled in for both companies.

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