How It Works

CosaPrendo turns public product listings into clear, side-by-side comparisons. Here's exactly how that happens.

Where the data comes from

Product listings, prices and ratings are collected from Amazon. We track each product over time so prices and review counts stay current.

How specifications are extracted

Technical specifications are extracted with AI assistance and scored for confidence. Low-confidence values are flagged for manual review before publication, so listed specs reflect the manufacturer's own listing as closely as possible.

How comparison pairs are chosen

For each category, we take the 30 most-reviewed products and pair any two whose prices are within 15% of each other. This keeps comparisons meaningful - you won't see a budget model compared against a premium one just because they're in the same category.

A note on accuracy

Prices, availability and ratings can change after our last check. Always confirm the current price and specifications on the retailer's page before buying.