2 guides
Best apps to sell pet supplies
Direct answer: Facebook Marketplace is the most common first app in this pet supplies cluster, but item price, condition, shipping risk, and buyer intent can change the winner.
Item app guides
Choose the app by exact item
Facebook Marketplace
dog crate
Facebook Marketplace is the best app to test first for dog crate. Compare eBay and Mercari if the app audience, shipping setup, or offer flow looks stronger for your exact item.
eBay
aquarium filter
eBay is the best app to test first for aquarium filter. Compare Facebook Marketplace and Mercari if the app audience, shipping setup, or offer flow looks stronger for your exact item.
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Apps that show up first
Facebook MarketplaceeBay