AI Deal Finders vs Coupon Sites: Why Browser Extensions Are Dying in 2026

Coupon sites and browser extensions saved shoppers billions between 2010 and 2024, but AI deal finders that negotiate prices in real time are making them obsolete. The shift is not theoretical. It is already happening, and the data shows it. The Rise and Fall of the Browser Extension Era Browser extensions like Honey, RetailMeNot, and Rakuten built massive user bases by doing one thing well: automatically applying coupon codes at checkout. Honey reached 17 million users before PayPal acquired it for $4 billion in 2020. RetailMeNot was pulling in 50 million annual visitors at its peak. ...

April 26, 2026 · 11 min · GoBuy.ai

I Let an AI Agent Shop For Me. Here Is How Much I Saved.

I saved $847 across five purchases by letting an AI shopping agent find prices, apply hidden coupons, and negotiate discounts on my behalf. The biggest single save was $312 on a TV that I was about to buy at full retail. Here is exactly what happened with each purchase, what the AI did, and whether it is worth using for your own shopping. What I Bought and How I picked five products I actually needed: an iPad, a 55" TV, running shoes, an espresso machine, and noise-canceling headphones. For each one, I first found the price I would normally pay (the first result on Google Shopping or the retailer’s listed price). Then I gave the same purchase to GoBuy.ai and let the agent work. ...

April 16, 2026 · 9 min · GoBuy.ai