Case study
Selling your stuff, without the group chat chaos
KwayesClassifieds & resale marketplace app
A social marketplace for secondhand goods, where posting an ad, messaging a buyer and tracking what's sold all live in one profile instead of scattered across chats.
Field
Classifieds marketplace
Scope
Strategy · Design · Development
Platform
iOS & Android
Format
Photo & video listings
The challenge
Selling secondhand items usually meant posting across several apps and groups, then managing buyer messages by hand across all of them, with no single place to see what's active, sold or favourited.
Our approach
We built the app around a seller's own profile as the hub: what they're selling, what's sold, and what they've favourited from other sellers, with messaging built in rather than bolted on.
Profile as command centre
My Ads, Sale on Kwayes and Favourites live as tabs on one profile, not buried in separate screens.
Post in any format
Photo or video listings, so a seller can show an item moving or working, not just sitting still.
Messaging that stays put
Buyer conversations happen inside the app, tied to the listing they're about.
Experience direction
One tap to post
A single, always-visible action button starts a new listing from anywhere in the app.
Notifications that matter
New messages and offers surface immediately, without opening five different chats to find them.
Favourites you can act on
Saved listings sit next to a seller's own ads, ready to revisit or message about.
Product screens
Compositions from the home feed, listing detail and seller profile.
Design system
A vivid magenta accent signals action moments, set against a clean, photo-first layout for everything else.
Outcome
The result is a single home for buying and selling secondhand: photo or video listings, in-app messaging tied to each ad, and a profile that tracks what's active, sold and saved in one place.
Photo and video listings in one flow
In-app messaging tied to each ad
One profile for active, sold and saved items
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