Finding a Cheaper Version of Anything, the Moment You're Looking at It
Dupely scores how close an alternative product really is to the original, instantly, across Amazon, Walmart, TikTok Shop, and Wayfair, so "for less" doesn't mean "worse."
Executive Summary
Everyone knows a cheaper version of most products exists somewhere. Finding it, and trusting that it isn't a downgrade, is the part that usually doesn't happen, because it means opening five tabs and eyeballing spec sheets.
The problem: shoppers comparing alternatives across Amazon, Walmart, TikTok Shop, and Wayfair have to search manually, with no fast way to judge whether a cheaper option is actually similar or just cheaper for a reason.
What we built: Dupely, available as a Chrome extension and native iOS/Android apps, matches products across retailers the moment a product page loads and ranks each alternative with a proprietary MatchScore from 0–100.
The result: a live product across three platforms with 1,000+ downloads and organic viral traction on TikTok. That's real usage, not a concept still looking for its first users.
Client: Dupely LLC (Chicago, USA) · Devscape Digital, ongoing technology partnerWho This Is For
Built for shoppers who want the same thing for less, without doing the comparison work by hand.
The Problem
Ask a habitual online shopper how they find a "dupe," and the honest answer is usually a search bar and a lot of guessing.
- Comparing alternatives across Amazon, Walmart, TikTok Shop, and Wayfair means checking each site separately.
- There's no quick way to tell if a cheaper option is a genuine match or a compromise in disguise.
- Price gaps usually get discovered after the purchase, not before it.
- Most "deal finder" tools track prices on the same product, but they don't surface alternatives at all.
This isn't about shoppers being uninformed. It's that judging similarity across retailers, at speed, isn't something a person can do by eye in a few seconds.
Before and After
Finding a genuine dupe takes more effort than most people are willing to spend.
The comparison happens automatically, the moment the page loads, not as a separate errand.
Core Features
Built to work the instant a shopper is already looking at a product, not as a separate app to remember to open.
A single number for "how close is this, really?"
Every alternative gets ranked 0–100 on how similar it is to the original, so a cheaper option can be judged at a glance instead of read about.
- 0–100 similarity ranking, evaluated instantly
- Surfaces on the product page the moment it loads
- Cross-retailer: Amazon, Walmart, TikTok Shop, Wayfair
Chrome extension, plus native iOS and Android
Dupely doesn't require a separate shopping habit. It works inside the Chrome extension while browsing, or as a standalone app.
- Chrome extension for desktop browsing
- Native iOS and Android apps
- 1,000+ downloads with organic traction on TikTok
How It Works
Browse any product page
Amazon, Walmart, TikTok Shop, or Wayfair: the extension or app is already watching.
Dupely scans for alternatives
Cross-retailer matching runs the moment the page loads, no manual search required.
MatchScore ranks each one
Every alternative gets a 0–100 similarity score, evaluated instantly.
Pick what fits the budget
Choose the original or the dupe with a clear sense of the trade-off, not a guess.
Outcomes
Verified figures as of this writing.
What This Means for the Business
Organic traction on TikTok for a pre-Series startup isn't a vanity metric. It's a signal that the core idea, cheaper alternatives ranked instantly, resonates without paid acquisition behind it. For a young company, that's the difference between a product that needs to buy every user and one with a real, credible growth loop to build on.
Where Dupely Works
Live across the retailers and platforms shoppers already use, with no separate account or workflow required.
Try it at dupely.io →
FAQ
What is MatchScore based on?
It weighs product attributes and visual similarity to rank how close an alternative is to the original. The exact scoring model is proprietary to Dupely.
Does it work inside TikTok Shop?
Yes, TikTok Shop is one of the retailers Dupely matches against, alongside Amazon, Walmart, and Wayfair.
Do I need the Chrome extension and the app?
No, either works on its own. The extension covers desktop browsing, the apps cover mobile.