Marketplace App DevelopmentWe build marketplace apps
people actually open,
not just install.
A marketplace app lives or dies on whether people come back to it. We build native iOS and Android marketplaces — two-sided, with listings, search, payments, push, and trust built for a small screen and a busy thumb. Real native apps, owned by you.
app.yourmarketplace.com
Live marketplace
Two-sided liquidity, one platform
Supply and demand, matched. Listings, search, payments, and trust — built to move volume.
Recent activity
NNew listinglive
BBroker onboardedverified
EEnquiry matchedsent
PPayment cleared£4,200
Platforms and marketplaces we have built and worked on
sellyourboat.ioLoopabusesforsale.comeuropeanyachtbrokers.comKompiPay
What we buildA marketplace, made for
the phone in your hand.
A marketplace app is a two-sided platform plus every constraint and superpower of mobile. We build for both.
01
Native iOS & Android
One React Native codebase, both stores, real native feel — not a website in a shell.
02
Mobile-first search
Finding the right listing fast, on a small screen, with a thumb.
03
Push that brings people back
The notification layer that turns installs into an active market.
04
Payments & trust
In-app transactions, reviews, and the trust that lets strangers deal.
05
Owned by you
The full codebase and both store listings, no app-builder lock-in.
Native app or web app? We help you choose honestly
The most expensive mistake in marketplace app development is building an app because apps feel impressive, when a web app would have reached more people for less. So the first thing we do is pressure-test whether you actually need native at all. If your marketplace is a considered, desktop-heavy purchase, web is often the smarter, cheaper reach.
But when the usage is mobile by nature — short, frequent, on-the-go moments, browsing and messaging and checking status — a native app earns its place. Push notifications that bring people back. Camera access for listing photos in seconds. Being one tap away on the home screen instead of a URL nobody remembers. For the right marketplace, native is not vanity, it is the difference between an active market and a dead one.
We give you the honest answer for your specific market, even when the honest answer is smaller and cheaper than what you asked for. A marketplace that reaches liquidity as a web app beats a beautiful native app nobody opens twice.
The hard partTwo sides of a market, on a small screen
A marketplace app carries the same liquidity problem as any marketplace — no buyers means no sellers, no sellers means no buyers — but it has to solve it in the constrained space of a phone. Buyers and sellers often need genuinely different experiences, sometimes different apps, and cramming both into one cluttered interface is how marketplace apps lose people.
So we design each side for what it actually does on mobile. Sellers need to list fast, from the camera, and manage things in spare moments. Buyers need search that surfaces the right result in seconds and a way to act on it without friction. Push notifications do the heavy lifting of pulling both sides back — a new listing, a matched enquiry, a message — because on mobile, out of sight is out of the market.
This is the work that separates a marketplace app that becomes a habit from one that gets installed, opened twice, and forgotten. It is a design problem before it is a code problem, and we treat it that way.
ProofWe build marketplaces, and we build native apps
Marketplace app development sits at the intersection of two things we do for real. On the marketplace side, sellyourboat.io is a Wall & Fifth venture we built and run: a live platform carrying over 12,000 listings from more than 100 vetted brokers across 18 countries, with a Claude-powered assistant serving both sides of the market.
On the native side, we build production mobile apps from scratch — including Loopa, a premium iOS app we built end to end, on a modern React Native and Expo stack. So when we build a marketplace app, both halves of the problem are things we have shipped and shipped well, not things we are learning on your budget.
We have also delivered platform work for busesforsale.com and europeanyachtbrokers.com. Marketplaces are a category we keep choosing, and native apps are how we ship when the market lives on mobile.
The buildReact Native, both stores, owned outright
We build marketplace apps on React Native and Expo, so a single codebase produces both iOS and Android — far more cost-effective than two separate native builds, without feeling like a compromise. Behind the app is a real production backend: TypeScript, PostgreSQL, deployed properly, the same foundation we build every product on.
We build to a fixed price. From 16,000 GBP for a focused marketplace app MVP on one platform, from 30,000 GBP for a larger build across both stores with payments, push, seller tooling, and trust. We handle App Store and Play Store submission. Third-party usage — payments, push infrastructure, mapping — is passed through to you at cost, never marked up.
And you own all of it: the full codebase, the backend, and both store listings, handed over on delivery. No app-builder platform you keep paying, no licensing, no lock-in. Yours to run and ship updates to, with us or any team you choose.
ProofA real marketplace, and real native apps
sellyourboat.io is a live Wall & Fifth marketplace. Loopa is a native iOS app we built end to end. The capability is proven.
12,000+
marketplace listings
PricingFixed price, scoped to the platform
A defined price for a defined build. One platform to start, or both from the outset.
App MVP
from £16,000
A focused native marketplace app on one platform: listings, search, accounts, and a first transaction path.
Extensive App
from £30,000
Both iOS and Android, with payments, push, seller tooling, and a full trust layer.
Embedded Partner
from £8,000 /mo
Ongoing senior involvement once it is live: shipping updates, growing the market, evolving both apps.
Build a marketplace app
people come back to.
Tell us your market and how people would use it on their phone. We will tell you honestly whether it needs an app, then build it if it does.