Deal Radar for Second-hand

Monitor marketplaces and alert you before good deals vanish

Problem

On second-hand platforms like Xianyu, truly good deals are snapped up within hours, leaving only overpriced items. Users spend hours browsing but always miss the best bargains.

Solution

A real-time monitoring service where users set keywords, price ranges, and condition filters. The system scans new listings 24/7 and instantly alerts via WeChat or email when a match appears. It also provides historical price references to help decide if it's worth buying.

Users

Frequent second-hand buyers, collectors, budget-conscious students

MVP

Keyword + price range monitoring; instant push notifications; spam filtering; multi-platform support; simple price trend display

Revenue

Free tier limited to 3 monitors; premium $5/mo for unlimited monitors + priority alerts

Why now

Second-hand trading continues to grow, but information asymmetry is severe. Indie developers can quickly enter with lightweight scrapers and push notifications, requiring minimal operations.