Sinclair is your AI price protector. A free Chrome extension that checks every Amazon price in real time and tells you plainly: is this deal actually good? No login needed. Launching 2026.
Free to sign up. You pay nothing until we launch. We email you first on launch day.
After you reserve: get your personal link, move up the queue with every friend who joins, and tell Sinclair what you shop for.
Every friend who reserves a spot through your link moves you up. Higher rank, earlier invite on launch day.
Prices change hundreds of times a day. Sale badges get applied to inflated reference prices. You’re left guessing. Most shoppers lose.
Sellers set their own reference prices. Many inflate them for weeks before a sale so the discount looks larger than it is. A “40% off” badge can mean nothing at all.
Amazon’s algorithms adjust prices hundreds of times a day. What looked like a deal this morning may be inflated by tonight. There is no way to know without the data.
Prime Day, Lightning Deals, flash sales. Most of them are noise. Without 90 days of price history behind each badge, every deal looks urgent and nothing actually is.
No setup. No account. Sinclair tells you when a deal is real, and when it is not.
Install takes about 10 seconds. No account required. Sinclair starts working the moment you land on any Amazon product page.
A compact badge appears near the price, backed by 90 days of real price history. Not the retailer’s word for it. The actual data.
If Sinclair says INFLATED, that “was” price is manufactured and you’re being misled. Walk away. That is the entire point.
Founding members get early access to every agent we build. Here is what is already in the pipeline.
Sinclair reads between the lines. Spot paid reviews, fake five-star patterns, and quality signals before a bad purchase reaches your door.
Set a target price on any product. Scout watches 24/7 and alerts you the moment it drops. Never miss the right moment to buy.
Tell Gifted who you are shopping for. It finds real deals on gifts they will actually want, with a price verdict on every recommendation.
Every genuine deal Sinclair confirms gets logged. Vault tracks your total savings so you can see exactly what True Finds is worth to you over time.
Sinclair’s price verdict will always be free. We earn when we help you find deals you actually want. That means our incentives and yours are pointed in the same direction.
Founding members are the people who believed before there was anything to show. We’re honoring that with a rate locked for life.
Founding members get a private email the morning Sinclair launches, before any public announcement goes out. You decide first.
Your $8.97/month is locked permanently. The public price will be higher. Yours never changes, no matter what we charge later.
Founding members get a direct line to the build. Review intelligence, price alerts, cross-retailer comparisons. Your feedback drives what Sinclair learns next, not a roadmap someone else wrote.
The core Verify Badge is free forever. No bait and switch. Founding membership is for premium features, not access to the truth.
No payment today. No credit card required. You’ll receive your founding member invitation by email when we launch. The Verify Badge is free forever. Premium plan pricing is an estimate and subject to change.
Free to sign up, nothing to pay until we launch, and your $8.97/month founding rate locks for life while later members pay the higher public rate.
The free extension reads only the product page you are currently on. No browsing history. No tracking across sites. It uses the narrowest permissions Chrome allows and activates only on Amazon product pages. Premium features that learn your preferences require your explicit approval before Sinclair can see anything beyond the current page. You decide what it can access. That never changes.