A marketplace app is two products sharing one binary. Buyers want search, price, and proof; sellers want listings, demand, and payouts — and the side with fewer people is always the one design has to serve first.
So both sides are mapped separately: listing and onboarding built for supply, search and comparison built for demand, and reviews, verification, and payment states placed at every point where a stranger has to be trusted.
3 main challenges holding back your growth
Outgrown identity
Your company has grown, but the brand no longer reflects scale or direction.
Outgrown identity
Your company has grown, but the brand no longer reflects scale or direction.
Outgrown identity
Your company has grown, but the brand no longer reflects scale or direction.
One app for both sides
Buyers and sellers share one navigation — neither side finds their own work.
Empty on first launch
Search returns nothing in a new category and first-time users never come back.
Trust left to the reviews
Verification and dispute terms stay invisible until something has gone wrong.
“All projects in which we’ve involved Halo Lab have been great successes, but their leadership on our brand refresh is worth highlighting.”
“We’ve had feedback from users, investors, and employees, and everyone has said that Halo Lab did a fantastic job with the branding.”
“We’re proud of their branding services. They not only do what we tell them but also make suggestions to help us improve our offerings.”
What we deliver
Marketplace app design from
supply onboarding to handoff
Two-Sided Flow Design
Buyer and seller journeys designed separately, then joined at the moment the transaction happens.
Listing & Onboarding
Listing creation designed to be finished on a phone, in one sitting, without a desktop step.
Search & Discovery
Search, filters, and sorting designed around the way people actually narrow a long list of options.
Trust & Verification
Reviews, identity checks, and buyer protection placed at each moment where hesitation begins.
Booking & Checkout
Request, payment, and confirmation designed with price, fee, and cancellation stated upfront.
Messaging & Negotiation
In-app messaging designed for the questions that decide whether a deal happens or falls apart.
Cold-Start States
Category, search, and dashboard empty states designed as part of the launch plan, not after it.
Design System
Reusable component library delivered, so your team ships new screens without a full redesign.
Our most ambitious work
How we work
Our process for your
marketplace app design
Start with a strategy call where we align on your goals, challenges, and priorities, and set a clear direction for the entire branding process.
3–4 Days
Research & analysis
Buyer & Seller Mapping
We map both sides of the marketplace, their separate goals, and where the transaction meets, before any flow or screen is designed.
3–5 Days Audience map
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App Architecture & User Flows
We structure discovery, listing, and transaction navigation for both sides — validated before wireframing begins.
3–5 Days Flow structure
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Wireframes
We wireframe critical marketplace screens — search, listing creation, and checkout — validated before full visual design.
3–5 Days Wireframes
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UI Design & Design System
We design every screen for iOS and Android — and build the component library alongside each flow.
1–3 Weeks UI designs
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Engineering Handoff
Annotated Figma files, platform specs, and component documentation — your team builds without ambiguity.
2–3 Days Handoff
Start with a strategy call where we align on your goals, challenges, and priorities, and set a clear direction for the entire branding process.
3–4 Days
Research & analysis
Industries we serve
Mobile app design for
diverse organisations
Healthcare
Mobile app design for hospitals, clinics, and health systems.
Financial Services
Mobile app design for banks, insurance firms, and financial platforms.
Logistics
Mobile app design for logistics, transport, and supply chain companies.
Real Estate
Mobile app design for property developers and management firms.
Education
Mobile app design for schools, universities, and e-learning platforms.
Web3 & Blockchain
Mobile app design for Web3 startups and blockchain-based products.
Wellness/Fitness
Mobile app design for wellness brands, gyms, and fitness studios.
Information Technology
Mobile app design for tech companies, software products, and platforms.
6 reasons why clients
choose Halo Lab
Team with industry depth
Strategy before design
Custom-only approach
Expertise for complex needs
Clear, collaborative process
Flexible value for any budget
100+ verified
love letters
“Halo Lab is very organized in planning to achieve the goals within the set deadlines. We feel they were part of our internal team project.”
“Their experts have a very diverse range of skills and always find a solution to exposed issues. The communication process was clear.”
“During the collaboration, Halo Lab prioritized our people, always taking into account our input and ideas and giving all team members a voice.”
“The Halo Lab team unified branding across our patients’ app, showcasing professionalism, convenience, and consistency.”
“Halo recreated our existing portal with a modern and beautiful experience, greatly increasing usability and delight for the end user.”
“Halo Lab is brilliant. We were impressed with their timely delivery, cost-effectiveness, and the people who knew what they were doing!”
“The value we get from Halo Lab and their quality designs sets them apart from others. They are the right mix of price, talent, and style.”
“We gave the Halo Lab team a chance, and we immediately knew they were the ones we wanted to work with.”
“The Halo Lab work pleasantly surprised us, and bringing in their professional design team has been a worthy investment for us.”
“When collaborating with Halo Lab, we felt that communication was straightforward and that the deliverables fit what we expected.”
“Halo Lab has helped us with a rebrand and defined a new name, logo, and color palette. We’ve had a great experience working with them.”
12 years
We’ve built one of the most trusted agencies
150+
Specialists in design, engineering & product management
78%
Returning clients in Europe & North America
FAQ
Why invest in branding services?
Why invest in branding services?
What does marketplace app design include?
Two-sided flow design, listing and supply onboarding, search and discovery screens, trust and verification patterns, booking and checkout flows, in-app messaging, empty and cold-start states, usability testing, and a design system with engineering handoff.
Do you design the buyer and seller sides separately?
Yes. Each side gets its own navigation, its own onboarding, and its own home screen. They are joined only where the transaction happens, because a shared interface serves neither participant well.
Which side should be designed first?
The scarce one, which is usually supply. A marketplace with no listings has nothing to search, so listing creation and seller onboarding are designed before buyer discovery is polished.
How do you design trust into a marketplace app?
By placing it where hesitation happens. Verification badges, reviews, buyer protection, and cancellation terms appear at the moment of commitment rather than on a separate policy screen nobody opens.
How do you handle empty states at launch?
Empty categories, empty searches, and empty seller dashboards are designed as part of the launch plan — with seeded content, adjacent suggestions, and a clear next action instead of a blank screen.
How long does marketplace app design take?
Most marketplace app design projects run 10 to 16 weeks from discovery to handoff, depending on the number of participant types, transaction complexity, and how much of the design system is in scope.
Do you design in-app messaging and negotiation?
Yes. Messaging is designed around the questions that decide a deal — availability, condition, timing, and price — with templates and states that keep the conversation inside the app.
Do you run usability testing?
Yes. Clickable prototypes are tested with real buyers and sellers before engineering starts, and listing creation is tested hardest because that is where supply is won or lost.
Can you also develop the app?
Yes. Design and development are delivered by one team — iOS, Android, or cross-platform build, payment and identity integrations, marketplace backend work, and QA before release.