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.











the matching accuracy question above is about honest mistakes, but is there a version where a seller games it on purpose? like stuffing a listing's title/attributes so a cheaper, lower-quality item gets matched as a "dupe" of a premium one it isn't actually equivalent to, just to ride the traffic from your recommendation. accidental mismatches you can improve with better signals, but an adversarial seller is optimizing specifically to fool whatever matching logic you publish or that people can reverse engineer from watching what gets flagged
Background auto-match right on the listing page is the friction-killer — manual go-check-the-app flows never survive on my phone. Since price history is ASIN-level and covers third-party sellers, does a sudden drop from a brand-new low-reputation seller get surfaced any differently than one from an established seller? Otherwise the cheapest ASIN could point me straight at the sketchy listing the trust layer is supposed to protect me from.
finally tried dupely on the chrome extension and the trust this price feature caught a “sale” that was actually the same price it's been for three months, exactly the kind of thing i've been burned on before. nice to see someone focus on this.
@ayfer794543 Thanks Ayfer! I know right, it's so crazy that the "sale" prices can be kept for over 3 months. Thanks for using Dupely! :D
@ayfer794543 Watch out for the "limited time deals" and other "social proof" that is just gamified as well
Nas.com
Can users report products they think Dupely missed to improve future matching?
@nuseir_yassin1 Great idea Nuseier! We will definitely add that to the roadmap, I think that will help out a lot with the ecosystem as a whole, thanks for using Dupely :D!
Tried it on a few products I was already eyeing and the 90-day price history genuinely changed my mind on one "sale" that was actually the normal price. Nice to finally see a tool that doesn't just hand me a coupon code.
@aslhangger3pdy Thank you Aslihan! Glad you can sift through the "sales" now, thanks for using Dupely! :D
The price history view is surprisingly addictive, it makes you realize how often "sale" tags are basically decoration. Seller badges feel like a step in the right direction too, though I'd want to see how strict they are on the sketchy resellers.
@slakln0vxp Thanks Sila! I'm shocked at how long sale items can be kept "on sale". Thanks for using Dupely! :D
Love how the price history behind Trust This Price actually feels grounded in real data instead of vague “was $X” claims, and tying it to seller credibility badges in one flow is a really smart move.
@srabdy7 Thank you Sirac, it's going to be a lot harder to gamify prices now! Thanks for using Dupely! :D