category, price range, and location-based sorting. In-App Chat: secure messaging between buyers and sellers.
integration for secure transactions (Stripe, PayPal). Push Notifications: alerts for new messages or price drops. Technical Roadmap
Building a buy-and-sell app (like Craigslist, OfferUp, or Facebook Marketplace) requires balancing user trust with a seamless browsing experience. Core Features verified accounts with ratings and history.
consider listing fees, featured ads, or transaction cuts.
easy photo uploads, descriptions, and pricing.
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