Most shopping tools chase coupons. Dupely tackles trust. Online shopping is full of manipulation: artificial price drops, fake reviews, paid influencers, and sketchy white label sellers reselling the same product at a markup. DupeScore finds identical products for less. Trust This Price flags fake savings using 90 days of price history. Seller badges show you who's actually credible. Now on iOS, Android, and Chrome. Dupely is the trust layer online shopping has been missing.











How does the DupeScore actually identify identical products across different sellers, especially when listings vary in size or bundle contents?
@erafettinscmjl Great Q Serafettin! We use a variety of signals from the product listing page to see how similar two listings are. We have a weighted formula that factors in things like the product listing image and description to create the blended score. The trust signals like Top Seller are surfaced too, so you'll get a deal if it's a good price from a reputable vendor. Thanks for using Dupely! :D
I'd love browser pop-ups explaining exactly why a seller earned or lost their credibility badge. What do you think?
@ranjan_kumar45 Ranjan - So we have that pop-up with a little "i" icon on why that seller has that badge. Let me know if you see that. Might be something worth our team exploring new UI options @natalie_warden
Great feedback
Building in the shopping space myself, so this one hits close. The gap between "is this product legit" and "is this seller legit" is bigger than most people realize — which one is Dupely actually scoring, or is it both? Curious which signal turns out most predictive: review-pattern anomalies or seller history. Congrats on the launch, the problem is painfully real.
@chielephant Thank you Anthony! We're tackling both, I think the combination of signals is necessary for showing the shopper that our recommendation is good. From the feedback today, a lot of emphasis on pricing history and seeing how the actual price has been manipulated has driven a lot of purchasing decisions. Thank you for using Dupely! :D
ConnectMachine
Congratulations on shipping. Does Dupely also compare prices across different retailers or only within marketplaces?
@syed_shayanur_rahman Right now only within marketplaces by design. We don't want to take you off platform if you are already there. We also want to keep these marketplaces happy with us by increasing purchase behavior on high intent purchasing, eliminating return risk, and keeping their customers happy on their marketplace.
The concept is that we don't want to take you to Walmart if you aren't a Plus member when your on Amazon as a Prime member. Same goes with Wayfair, TikTok Shop.. etc..
Logan's question in this thread, whether the badge becomes the new thing to optimize around, is the one I'd push on too. I build in a category where dark patterns are the default and the honest answer is you never eliminate gaming, you price it up, so Ryan's framing rang true. What happens when a seller earns the badge legitimately and then quietly degrades, is there decay built into DupeScore?
@narek_keshishyan The goal is to change that mindset all together. Change the default and eliminate the gaming. Step based progress is progress. The whole point is we want to hold marketplaces and sellers alike accountable and ensure to consumer is the beneficiary.
I'd personally love to hear more about your specific category and how Dupely can solve for it
The 90-day price history alone would save me from buying during fake "limited-time" sales. xD
@ragsyme Glad to hear it! Ultimately we want to expand on this further to account for artificial dips in savings in prep for black friday/cyber monday, holidays, prime day, etc...
I said in another comment where we want to go with price tracking is take it to a guaranteed low price or flight insurance type where we are so confident this is the best price this product has been or will be that we can stand by it with a refund of the difference. Time + data pending
Hey Product Hunt. Ryan here, co-founder of Dupely.
The idea for Dupely came about because I've seen from the other side what it's like selling on these major marketplaces we're trying to fix. I've been selling on these marketplaces for over fifteen years. Over the years I've noticed how much more difficult it is becoming as an average consumer. Important information buried in the metadata of the listings. If an item is returned often, if the seller is recently launched, seller reviews buried through clicks, true price tracking.. the list goes on and on. The advancement of AI meaningfully made that trust erosion move faster.
I saw white-label sellers list the exact same factory product at a 40% markup. I've been targeted by ads telling me I can get rich quick making passive income buying from Alibaba. I was invited to groups that gave artificial discounts to move your listing up in the rankings by gaming sales velocity. I saw reviews bought, traded, and seeded. All of this from the lens of the seller, not the buyer.
Then I spent a decade in edtech, and I watched the same rot show up somewhere you would never expect it. Candidates auto-rejected by AI hiring managers before a human ever saw them. People reverse-engineering ATS keywords just to survive the first filter. Good people gamed out by a system that was supposed to be neutral.
We are in a trust recession. The tools built to help us, search, reviews, rankings, hiring filters, have quietly been turned against us. And most of us just accepted it as the cost of doing anything online.
Dupely is my answer on the shopping side.
It finds the identical and near-identical products for less, verifies the seller, scores the match from 0 to 100, and flags fake sales using 90 days of real price history. It fires the second you land on a product page. No hunting, no extra tabs, no wondering if the deal is real. If you've ever found the product you were looking for then ended up not buying because you were overwhelmed with an abundance of choice and analysis paralysis.. Dupely should solve that for you.
What's next is where I'd love your brain. We're working on review authenticity scoring so you can see which reviews are actually real. Wider coverage across the marketplaces where this is the biggest issue: TikTok Shop, Walmart, Wayfair, Home Depot, and more. And a clearer picture of who the real seller behind a listing actually is.
And if you're a seller, we want to hear from you too. You're sick of your products getting knocked off.. we want to help verify you. Let's talk.
What other features could we solve for to make your shopping experience better? If we happen to save you money in the meantime, that is a huge win.
If you've ever felt that you don't know whether you just bought the right product for a fair price, that's the feeling we're building against.
I'll be here all day. Tell me where we're right, where we're wrong, and what you'd want us to catch next.