Question: Do you know of a solution that can track price changes on e-commerce sites and alert me to changes?

HARPA is a powerful Chrome extension that uses AI models for web automation, including price tracking. It also can give you immediate answers and summarization, and because it runs on your own computer, it's private. HARPA comes in several pricing levels, including a free version, and is geared for productivity boosts and web automation.

Campana is another powerful tool that lets you monitor competitors in real time, including price changes. You can get a customized feed of relevant news and weekly email digests of what competitors are up to. It's geared for businesses trying to stay competitive, with AI-triangulated news and longer retention of data.

For retailers, Particl offers an automated competitor intelligence system that can monitor sales and prices in real time. With tools like competitor tracking for more than 10,000 retailers, trend analysis and customizable reports, Particl can help retailers fine tune pricing and assess market share. It offers several subscription tiers for different business needs.

Last, Scrapx is a website monitoring service that scrapes selected sites daily to spot changes and send notifications by email or Slack. You can customize HTTP headers and use API webhooks, too, so it can be used for competitor analysis, content strategy and market research. Scrapx is good for businesses that need to monitor websites and spot changes.