Resale Profit Tracker
A tool that tracks items purchased for resale across eBay, Poshmark, and Mercari; calculates profit margins, inventory, and best categories.
The problem
Resellers lose 20% of profit due to poor tracking; manual inventory and margin calculation is error-prone.
Proposed solution
Connect to eBay, Poshmark, Mercari APIs; auto-track purchases/sales; calculate margins and inventory; highlight top categories.
Target audience
Resellers and small e-commerce businesses
Key features
- Multi-platform API integration
- Auto purchase/sale tracking
- Profit margin calculator
- Inventory management
- Category performance dashboard
Monetization strategy
$9-29/month subscription; $1 per additional platform
Skills to build it
- Full-stack (React, Node)
- API integration (eBay, Poshmark)
- Data aggregation
- Financial calculations
- Dashboard UI
An idea is a starting point for research. Validate customer demand before building.