Free tools available (STL repair, 3D print cost calculator, UV printing profit calculator). Standard: $9.99 USD/month. Operator: $19.99 USD/month (founding offer: $9.99/month for first 12 months, or $9.99 for first 2 months for other new subscribers). 30-day free trial of Operator available; no card
Key features
13 product categories including hard drives, SSDs, memory, graphics cards, server CPUs, servers, 10GbE networking, batteries, power stations, tool batteries, e-bike batteries, solar panels and 3D fila
Data refreshed several times a day from eBay US Buy It Now listings
Filtering to remove likely fakes, counterfeits and suspiciously underpriced listings
Price per unit calculations including shipping costs
Separate tabs for category-specific product variants like server-only drives
Affiliate links with disclosure
Design discovery and marketplace signal comparison
Commercial-use license filters
3D print cost estimates
Machine comparisons and production planning
STL file inspection and repair
Marketplace opportunity radar
Business planner for production costs
UV printing profit calculator
What makes it different
Shows price per actual unit of capacity (per TB, GB, core, watt) instead of total price per box
Filters out counterfeits, fake capacities and unrealistic prices to show only genuine bargains
Independent rankings that cannot be influenced by seller payments
Real-time data from eBay's official API covering US Buy It Now listings only
Research questions backed by marketplace evidence instead of guesswork
Accounts for all production costs including labor, failures, and channel fees
Distinguishes between maker downloads and actual buyer demand
Free tools including STL repair and cost calculators
Guides makers through discovery, analysis, evaluation and action stages