Track price changes automatically: 5 tools compared
Whether for your own shopping or competitive monitoring: five tools to track prices on any website — with their pros and cons.
Why track prices?
Prices on websites change constantly. Sometimes for genuine business reasons (new season, competitive pressure), sometimes algorithmically ("dynamic pricing" Amazon-style). Catching the right moment can save you serious money:
- Consumers want to hit the low point
- Competitive intelligence teams want to know if rivals are cutting prices
- Procurement teams want to track supplier B2B price lists
- Affiliate marketers want to keep prices in their reviews up to date
Doing this manually is impossible. Here are five tools compared.
1. Camelcamelcamel & Keepa (Amazon only)
Camelcamelcamel and Keepa are the classics for Amazon price tracking. Both ship browser extensions that overlay the historic price chart directly on the product page.
- Pro: built specifically for Amazon, free at the base tier
- Con: only works on Amazon
- Recommendation: use them alongside a general tool
2. Visualping
[Visualping](/alternatives/visualping) takes screenshots of the product page and diffs the pixels.
- Pro: works on any page, also for dynamically loaded prices
- Con: pixel diffs are often too sensitive (stock state changes, "customers also bought" carousels)
- Pricing: from around 10 USD/month
3. Distill.io
Distill.io is an established web monitor with a browser extension. You click to define which page regions to watch — e.g. exactly the price element.
- Pro: precise CSS selectors, you really only track the price
- Con: per-page setup is manual, not all selectors survive layout changes
- Pricing: free tier with 25 sources, Pro from 7 USD/month
4. ChangeTower
ChangeTower is a Visualping alternative focused on compliance and marketing.
- Pro: relatively good AI filters
- Con: UI feels less polished, higher pricing
- Pricing: from around 10 USD/month
5. SumYou (AI-based)
[SumYou](https://sumyou.com/) extracts the editorial content of a page, detects changes via content hash and generates an AI summary. For price tracking that means SumYou doesn't just say "price changed" but writes: "Apple cut the iPhone 15 Pro by $100 to $1,199."
- Pro: readable summaries instead of raw diffs, no CSS selector setup, multilingual
- Con: no dedicated "price" data type (so no price charts like Camelcamelcamel)
- Pricing: free tier with 10 sources, Pro at 4.99 EUR/month
Comparison at a glance
| Tool | Works on | Setup effort | Free tier | Pricing |
|---|---|---|---|---|
| Camelcamelcamel | Amazon | Very low | Yes | Free |
| Visualping | All sites | Low | 150 checks/mo | from 10 USD |
| Distill.io | All sites | Medium | 25 sources | from 7 USD |
| ChangeTower | All sites | Medium | 14 days | from 10 USD |
| SumYou | All sites | Very low | 10 sources | from 4.99 EUR |
Best practices for price tracking
- Track multiple sources per product — the same item may be cheaper elsewhere.
- Set realistic intervals — for consumer products once a day is enough; for stock tickers you need minutes.
- Watch out for anti-bot measures — Amazon, Idealo & co. will throw captchas at you if you query too often. Tools like SumYou throttle automatically.
- Mind the law — price tracking for personal use is legal. Mass scraping for commercial republication can be problematic.
Conclusion
If you only track Amazon, Camelcamelcamel or Keepa are unbeatable. As soon as you add other stores, you need a general tool. Visualping and Distill.io are established but more expensive and more technical. SumYou is the cheap option with AI summaries — especially handy when you want context for the change, not just the fact it happened.
Try SumYou for free and track your first 10 products with GPT-4o-mini summaries.