How much does a marketplace app cost?
A marketplace costs more than a single-seller store because you build for two sides: buyers who search, book and pay, and sellers who list, get paid and manage orders. Split payments and payouts, search, messaging, reviews and dispute handling are the main drivers, plus the admin tools you need to run it.
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What drives the build cost
- 1Seller onboarding, often with identity checks before payouts.
- 2Listings and search, with filters, maps or availability calendars.
- 3Payments split between seller and platform, refunds and payouts.
- 4Messaging between buyers and sellers, with moderation.
- 5Reviews, ratings and trust and safety tools.
- 6An admin panel for support, disputes and reporting.
Start narrow
Most marketplaces fail on liquidity, not features. Launch in one category or city, keep some steps manual behind the scenes, and build automation once the volume justifies it. Your take rate and payment fees decide whether each order makes money, so model them early.
How OceanLab prices it
OceanLab prices product builds and embedded engineers either outcome-based, paid per milestone, or hourly at $30-50/hr depending on role and seniority, whichever suits the client.
We start with a clickable prototype of both sides of the marketplace, then price the production build against it.
Check it for your case.
Common follow-up questions.
Should I use a marketplace platform instead of custom code?
For testing demand, often yes. Move to custom code when the platform limits your flows, fees or data.
Who handles payments and payouts?
Usually a payment provider's marketplace product, which handles split payments, seller payouts and much of the identity checking.
Web or app first?
Often web first for sellers and whichever your buyers use most. Many marketplaces add native apps later.