About Underpriced AI
The reseller's edge. Scan items, see real sold prices, list in one click, and track every dollar of profit. Built by flippers, for flippers.
Our Mission
Reselling shouldn't mean hours of manual research. We built Underpriced AI so flippers can make data-driven sourcing decisions in seconds, list faster, and know their profit on every item. From weekend thrifters to full-time reselling businesses — this is the tool we wished existed.
Who We Serve
Individual Resellers
From weekend thrifters to power sellers. Scan items, track profits, and list on eBay (US, UK, CA, AU, DE) and Bonanza.
$12 to $59/mo
Business Sellers
For serious sellers who want analytics. Revenue reports, category performance, and inventory aging.
$59/mo with 200 scans
Power Features
For high-volume operations. Inventory tools, business analytics, sale finder, and advanced reporting.
$24-$59/mo
The Platform
Core Features
- • AI-powered item identification and pricing
- • Real-time market data and comparable sales
- • SEO-optimized listing generation
- • eBay (US, UK, CA, AU, DE) and Bonanza integration
- • Purchase price and profit tracking
- • Background removal tool
Advanced Features
- • Business analytics and reports
- • Inventory tools (tags, locations, bulk ops)
- • Sale Finder for sourcing deals
- • Barcoding and SKU management
- • CSV import and custom reports
Available Everywhere
Built by a Reseller, for Resellers
Frank Kratzer
Founder & Developer
A software engineer with over 30 years of application development experience and deep expertise in AI and machine learning. Frank is also the developer behind acis-trading.com. He built Underpriced AI to bring enterprise-grade technology to everyday resellers—powered by Anthropic's Claude for item identification and Perplexity AI for real-time market research across multiple platforms. No cheap AI shortcuts.
Wendy Kratzer
Thrifting & Sourcing Specialist
The real-world expertise behind Underpriced AI. With years of hands-on experience flipping items from thrift stores, estate sales, and auctions, she provides the reseller's perspective that shapes every feature. From knowing which brands hold value to understanding what sells fast on each marketplace, her sourcing knowledge ensures Underpriced AI solves the problems resellers actually face in the field.
Get in Touch
Have questions or feedback? We'd love to hear from you.