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OK Barter

Barter / Consumer Marketplace

Making exchange simple again.

A digital bartering marketplace that enables people to exchange products directly with each other. What you no longer need may be exactly what someone else is looking for.

Product Strategy · Marketplace UX · Mobile Application · Backend & APIs

Visit OK Barter
OK Barter banner showing its product discovery and listing experience on mobile

02 / The Challenge

Give useful products a direct path to new value.

Many people own useful products they no longer need while looking for something else. Selling one item, receiving payment, and then buying another adds steps to that journey.

The challenge was to make direct exchange approachable for everyday users while supporting the connected workflows of a two-sided marketplace.

  • List products for exchange
  • Discover other users' products
  • Find relevant barter opportunities
  • Connect with interested users
  • Negotiate and complete exchanges
  • Manage listings and barter activity

03 / The Solution

What would you exchange for this?

Probity designed and developed OK Barter around product discovery and direct exchange. Users create listings with product details, images, and exchange preferences. Others explore available products, identify interesting opportunities, and initiate a barter.

The platform connects listings, discovery, user interaction, and exchange management in one streamlined experience.

04 / Core Experience

From listing a product to finding a possible exchange.

List a product

Publish products ready for exchange with relevant details, images, and exchange preferences.

Discover products

Explore products available for barter across different categories in a discovery-focused marketplace.

Find exchange opportunities

Identify products of interest and connect with their owners to explore a possible exchange.

Barter & negotiate

Communicate and work toward a mutually agreed exchange, with an interaction model built around barter.

Manage listings

Manage active listings and keep track of barter activity from a single account.

05 / A Different Marketplace Model

Make a new exchange workflow feel natural.

Traditional marketplaces follow a discover, buy, pay, and deliver journey. Barter requires both participants to find a relevant exchange, discuss it, and agree. Our design keeps discovery visual and familiar while making each next step clear.

  1. 01

    List

  2. 02

    Discover

  3. 03

    Match

  4. 04

    Negotiate

  5. 05

    Agree

  6. 06

    Exchange

06 / Product Engineering

Connected systems behind the marketplace.

Building OK Barter meant connecting account, listing, discovery, and exchange systems into a coherent product. This foundation allows the marketplace to evolve as its activity and user base grow.

  • 01

    User accounts

  • 02

    Product listings

  • 03

    Categories

  • 04

    Discovery

  • 05

    Barter interactions

  • 06

    Listing management

07 / UI/UX Approach

Familiar discovery. Simple actions. A mobile-first experience.

Easy discovery

Keep product imagery at the center, with familiar browsing patterns that help users explore.

Fast listing

Make it straightforward to introduce a product, add images, and describe exchange preferences.

Clear interactions

Give users a clear route from finding a product to discussing a possible exchange.

Minimal friction

Keep navigation and actions simple in a clean, modern, mobile-first interface.

08 / The Outcome & Our Delivery

Turn unused products into potential value.

OK Barter creates a digital ecosystem where the value of one product can be exchanged directly for another. It gives useful items a route beyond storage or disposal and helps people explore what those items could become for someone else.

The project brings together Probity's product strategy, marketplace UX, mobile-first design, and scalable engineering to turn an unconventional marketplace idea into a structured digital product.

What we delivered

  • Product strategy
  • UI/UX design
  • Mobile application
  • Marketplace architecture
  • Product listing system
  • Discovery experience
  • Barter workflow
  • Backend & API development

09 / New Possibilities

From unused products to new possibilities.

OK Barter makes exchanging what you have for what you need simple, digital, and accessible.