Price History Tools: Camelizer, Honey, Keepa, and What Each Is Good For
"Wait, was this actually a good price?" Price history tools answer that question by showing what the item has cost over time. Five tools dominate the space, each with strengths and gaps.
The five tools that matter
1. Camelizer / CamelCamelCamel
Best for: Amazon price history. Period.
Camelizer is a free browser extension. Visit any Amazon product page and it adds a chart showing the price history going back years. Color-coded for Amazon-direct, third-party new, and third-party used — important because Amazon and third-party sellers price independently.
The catch: Amazon-only. Doesn't help with Walmart, Target, Best Buy, etc.
2. Keepa
Best for: Serious Amazon arbitrage. Deeper than Camelizer.
Keepa is the professional version. $20/month for premium features (most arbitrage sellers consider it essential). Shows sales rank history, drop alerts, and competitor pricing data. The free version shows basic price charts.
3. Honey (browser extension)
Best for: Cross-site price comparison + automatic coupon code testing.
Owned by PayPal. When you reach a product page on most major retailers, Honey shows what the item costs at other retailers and finds applicable coupon codes automatically. Free.
The catch: Honey makes affiliate revenue, which means it sometimes prioritizes its own affiliate links over the cheapest actual price. Treat its recommendations as a starting point, not an oracle. Lawsuit pending as of 2025 regarding affiliate-link substitution.
4. Capital One Shopping (formerly Wikibuy)
Best for: A no-affiliate-conflict alternative to Honey.
Same general feature set as Honey — cross-site comparison and code-testing — but owned by Capital One, which doesn't have an affiliate marketing business to bias results. Free.
5. Slickdeals
Best for: Crowd-sourced deal verification.
Not strictly a price-history tool, but the comment threads on Slickdeals deal posts often include price history, deal comparisons, and warnings about fake markdowns. If you're unsure whether a "clearance" is real, search the product on Slickdeals and check the community's take.
How to verify a deal in 30 seconds
- If the deal is on Amazon: Open the Camelizer extension. Look for a clear price drop in the last week. If the chart is flat at the current price for months, the "Save 40%" claim is fake.
- If the deal is on Walmart/Target/Best Buy: Search the model number on Honey or Capital One Shopping. See what other retailers charge. If everyone is at roughly the same price as the "deal," it's not a real markdown.
- Cross-check Slickdeals: Search the product name. Recent threads will tell you if other shoppers think it's a real deal.
The "fake price-history" problem
Some retailers (notably Wayfair and Overstock) have been caught using price-cycling tactics — temporarily raising prices for a few days, then "discounting" back to the normal price. Honey and Capital One Shopping can't detect this because they only see the current price at each retailer. The defense: be skeptical of any "% off" that doesn't appear in a Camelizer or Slickdeals chart.
What price-history tools can't catch
- Bundled deals — savings hidden in bundles aren't on price-history charts
- In-store-only clearance — most tools track online prices only
- Returns at deep discount — Open Box / refurbished items don't have continuous history
- Limited-edition or seasonal SKUs — short product lifespan means short history
The shortcut
StealAlert pre-validates every deal: only first-party retailer clearance with a real markdown from a recently-seen original price, never third-party marketplace listings or inflated "Compare at" pricing. The hard work of cross-referencing is built in.