Topic guide · 31 pages

How do you build a marketplace app that both sides use?

Updated 5 November 2026 · every page on this topic, checked against our own builds

Quick answer

A marketplace is three products, one for each side and one for your operations team, plus the money between them. Build the smallest version that lets one buyer and one seller complete a real transaction, then add supply before demand. Start with marketplace app development and the marketplace launch checklist.

Trainr (trainers and clients), Pakka (senders and drivers) and EverybodysPet (pet owners, shelters and clinics) are the marketplaces behind these pages. The links cover the parts every marketplace shares: matching, money, trust and the console your team runs it from.

Start here

01SolutionsMarketplace apps
02ChecklistsMarketplace Launch Checklist
03GlossaryTwo-sided marketplace

Every page on marketplace apps

By kind of marketplace

SolutionsMarketplace appsThe parts every marketplace needs, with our quoted ranges
SolutionsLogistics appsOn-demand goods delivery: dispatch, tracking and drivers
SolutionsFitness appsTrainer marketplaces: packages, classes and payouts
ServicesShopify & WooCommerce DevelopmentWhen a store on Shopify or WooCommerce is enough
ChecklistsMarketplace Launch ChecklistWhat to finish before opening to both sides
Cost by app typeMarketplace app development costWhat a two-sided marketplace costs, MVP to full platform
Cost by app typeDelivery app development costWhat a delivery platform costs to build and per trip
Cost by app typeFitness app development costWhat a trainer marketplace costs against a gym app

Terms to know

GlossaryTwo-sided marketplaceWhy each side needs its own product
GlossaryCold-start problemGetting the first sellers before the first buyers
GlossaryMarketplace liquidityWhen a search reliably finds a match
GlossaryCommissionTaking a cut without breaking refunds or tax
GlossaryDispatchMatching a job to the right driver or provider
GlossaryKYCChecking who sellers are before you pay them
GlossaryDispute resolutionWhat happens when a buyer and seller disagree
GlossaryContent moderationKeeping listings and messages safe
GlossaryMulti-vendor checkoutOne basket, several sellers
GlossaryLive trackingShowing where the order is without a runaway map bill
GlossaryEscrowHolding the buyer's payment until the job is done
GlossaryPayoutPaying sellers and drivers on a schedule
GlossaryWalletCredits, refunds and driver cash in one balance
GlossaryCash on deliveryCash orders and what drivers owe the platform
Integration guidesStripe payments, refunds and payoutsCard payments and payouts to sellers
Integration guidesGoogle Maps Directions APIRoutes and ETAs for deliveries
Integration guidesSocket.IOLive updates between both sides
ServicesMobile App DevelopmentThe apps each side uses

Marketplaces we built

Case studiesTrainrTrainers and clients in the UAE, with card payments and payouts
Case studiesPakka LogisticsSenders and drivers in India, with live tracking and GST invoices
Case studiesEverybodysPetOur own animal-welfare platform for owners, shelters and clinics
ArticlesBuilding In-App Chat That Holds Up at Group SizeChat between buyers and sellers that stays fast as groups grow
ArticlesCut Google Maps Costs in a Delivery App: 151 Calls to 1Keeping a delivery app's map bill flat as orders grow

Questions people ask about marketplace apps

Should a new marketplace launch both sides at the same time?

Usually not. Recruit and onboard supply first, often by hand, so the first buyers find someone to book. The cold-start problem explains why.

How many apps does a marketplace need?

Often two apps and a console: one app for each side and a web console for your operations team. Some marketplaces serve both sides from one app with two modes, as Trainr does, which halves store submissions but makes each screen do more.

When is Shopify or WooCommerce enough instead of a custom marketplace?

When you sell your own products. Once other sellers or providers list through you, with commissions, payouts and their own dashboards, a custom build fits better. See Shopify and WooCommerce development.

What should a marketplace measure in its first month?

Whether searches find a match, how long a match takes, and whether both sides come back. Liquidity matters more than downloads early on.

How do marketplaces handle trust between strangers?

Verified profiles with KYC for anyone paid out, ratings after each job, in-app messaging so contact details stay private, and a clear dispute path.

Can a marketplace start in one city and grow later?

Yes, and it should. Gate each city until it has enough supply, and keep city as a field in the data model from day one so adding the next city is configuration, not a rebuild.