Grabbit – Unified Secondhand Marketplace Search

Shoppers waste time searching multiple secondhand platforms (Facebook Marketplace, Craigslist, OfferUp, Letgo) individually. Grabbit aggregates listings from all major secondhand marketplaces into one searchable interface. Target users are bargain hunters and thrifty shoppers.

Secondhand commerce is growing fast off the back of resale platforms hitting mainstream adoption, but aggregation plays in this space keep running into the same wall: eBay, Facebook, and OfferUp actively block scrapers and have repeatedly sued or throttled aggregators, so the data layer is structurally fragile from day one. The closest comparable is SearchTempest, which has survived years doing exactly this for Craigslist and eBay, which signals the space is occupied but not dominant. The $1k–5k/mo revenue band is realistic only through affiliate clicks or premium filters, but bargain hunters are notoriously conversion-resistant to upsells, which makes monetization thin relative to the ongoing maintenance cost of keeping scrapers alive across multiple hostile platforms. The most likely failure mode isn't competition — it's a cease-and-desist or API cutoff from one major platform that collapses the core value proposition overnight.