On a screen, the interface is what vouches for you.
When users search for a home through an app, the interface has to do the job of a face-to-face meeting. Sinh Vũ gives a platform one brand and one consistent interface system, so real listings stand out and users know where they are.
Three things: a shared interface system so the platform can add features without getting messy, a way of presenting listings that shows which have been checked, and one consistent voice from the screen to the notifications.
One set of components built once and used in the app, on the web and on every screen to come.
Photos, key information, update date and poster in fixed places; a verification badge appears only when the platform has truly checked.
From buttons and notifications to emails, the platform speaks in one way: clear, calm, never pushy.
Each kind of platform needs users to trust something different.
Their customersPeople looking to buy or rent, scrolling listings on their phones many times over several weeks.
Brand challengeHelp users filter quickly through a great many listings, so good ones are easy to spot and they aren't worn out before they find one.
Their customersBuyers and sellers who need to exchange information, negotiate and follow the steps of a deal on screen.
Brand challengeAt the step users worry about most, such as leaving their details or paying, the interface has to be clear and reassuring.
Their customersHomeowners using an app to control devices inside their own home.
Brand challengeModern but warm, so technology doesn't turn the home into an unfamiliar place.
These are the places where users hesitate even when the features are all there.
On classified sites, users are used to bait listings: lovely photos, but a call to ask leads to a different unit. So they are wary of every listing.
Present listings with an update date, the poster and a clear status label, following exactly what the platform has checked. Never attach a badge the platform hasn't verified.
Start from this problemEach team builds its own screen, with buttons and colors different everywhere; adding features makes it worse.
Build a shared component system, and assemble every new feature from the existing kit instead of redrawing it.
Start from this problemPush notifications, emails and contact messages are written by each person's habit, at times relentless and at times dry.
Write a voice guide and notification templates for each situation: new listing, changed listing, schedule reminder, reply to a viewer.
Start from this problemBlurry photos, thin descriptions and information that differs between listings make the whole platform look careless.
A guide for sellers: how to take photos, what a description should include, with a sample of a good listing.
Start from this problemAt the Research stage. Users open a listing, scroll through it and decide whether to call. If the listing lacks information or the contact button is hard to find, they leave.
Touchpoints are the screens and messages users meet. You don't need to do everything at once. These five decide most of the feeling of trust or doubt.
The screen users view most, where they decide to call or leave.
Where users decide whether the platform is easy to use.
The point where users hesitate most, because they have to leave personal details.
They pull users back; written badly, they become an annoyance.
They decide the quality of listings, which are the platform's main content.
Listed in the order to do them. A new platform can stop at step two or three; a platform that is expanding goes all the way.
Settle which users the platform serves and what makes them trust it.
Name, mark, color and type, tested first at app icon size.
A shared component system for the app and the web.
An about page, listing pages and a contact page.
Materials for sellers and partners who post listings.
Sinh Vũ built Homedy, a real estate portal that runs on an app and the web. The second project is an apartment services platform.
2017Homedy is a real-estate marketplace running in parallel on app and web. Sinh Vũ built the strategy, identity and a shared digital design system…
A warm position, one interface system shared across three screens, and a website easy to use even for first-time buyers.
2025kythuat.work handles repairs, installation, cleaning and refresh work for apartment residents. Sinh Vu built its identity, website, paperwork and field operating system…
An apartment services platform where every promise is tied to something verifiable, so residents dare to open the door.
The principles behind it
Users are making a big decision and are more anxious, so the interface has to reassure them first: clear information, large enough type, few steps, and the important buttons where they are easy to see.
Photos, location, key information, update date, poster and how to get in touch. A verification label should appear only when the platform has actually checked that listing.
When it has two or more places to display, such as an app and the web, or when several teams build screens. A design system makes every new feature faster to build and keeps them from drifting apart.
Modern but warm: friendly color and type, the most-used controls right on the first screen, and gentle prompts instead of technical jargon.
The interface can only present clearly what the platform has checked: update date, poster, listing status. Moderating listings is the platform's job, and design can't replace it.
A few lines about the platform, its users and what is holding you back is enough. Sinh Vũ will read it and reply within one working day.