DealSonar VS Diffee
Compare DealSonar VS Diffee and see what are their differences
A centralized log management and SIEM platform built for compliance, auditing, anomaly detection, and infrastructure visibility.
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Website, pricing, platforms and company facts side by side.
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| Website | dealsonar.io | diffee.me |
| Pricing | — | |
| Company | Startup from the United Kingdom · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.
DealSonar is a marketplace monitoring tool for resellers. Set keyword, location, and price filters once, then get alerts when new listings appear on Facebook Marketplace, Vinted, eBay, and OfferUp. Who it's for Resellers and flippers across the UK, US, and EU who source locally and need to...
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What each product offers, as listed by its team.
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Walkthroughs and reviews on video.
DealSonar Demo
Mr. Diffee Reviews The Tattooed Sales Guy
More videos
How often each product is chosen within a category, 0–100% relative to the other.
As answered by people managing DealSonar and Diffee.
DealSonar's answer
Choose DealSonar if you want speed and clarity together: continuous monitors across the marketplaces resellers actually use, instant alerts (Dashboard, Email, Discord, Telegram), and sold comps with profit estimates instead of alerts alone. It is built as a web dashboard for UK, US, and EU resellers, with a 7-day free trial on paid plans.
DealSonar's answer
Resellers, flippers, and side hustlers who source on Facebook Marketplace, Vinted, eBay, and OfferUp, then sell on eBay or other channels. Typical users hunt phones, laptops, consoles, trainers, and other high-turn categories across the UK, US, and EU
DealSonar's answer
DealSonar combines multi-marketplace monitoring with deal judgment in one workflow. You get alerts for Facebook Marketplace, Vinted, eBay, and OfferUp, plus eBay sold comps and profit estimates on matching listings, so you can decide whether to buy before you message the seller.
DealSonar's answer
DealSonar started from the same problem most local resellers hit: good deals disappear while you manually refresh Marketplace. The product was built to watch searches continuously, alert the moment a listing matches, and surface comps and margin so you can act in seconds, not after the item is gone.
DealSonar's answer
Next.js / React (web app) Supabase (auth and data) Stripe (billing) Optional Chrome extension for messaging workflows
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When comparing DealSonar and Diffee, you can also consider the following products.
JDMarket watches Facebook Marketplace, Craigslist, OfferUp, Kijiji & Gumtree, scores every new listing 1–5 with AI, and sends matching listings to your phone or Telegram after detection and filtering. App plans from $30/mo.
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Real-time Telegram alerts for new Vinted listings matching your keywords and filters. Built for resellers who want to spot and grab the best deals before anyone else.
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