Invaluable Auctions: Bid Live — Mobile commerce & marketplaces product delivered by Coralsoft

Commerce & Marketplaces · Est. $15k – $25k

Invaluable Auctions: Bid Live

Mobile commerce & marketplaces product delivered by Coralsoft

Coralsoft designed, built and shipped this product for the client.

MobileReact NativeExpoTypeScript

Invaluable Auctions: Bid Live — product interface

The situation

What was in place before we started.

The client needed a focused product for auction bidders. The first release needed lot discovery, live bid states, and watchlist alerts, while managing inventory and transaction edge cases. Coralsoft designed and delivered the 16-week MVP from discovery through release.

The client needed a focused product for auction bidders. The first release needed lot discovery, live bid states, and watchlist alerts, while managing inventory and transaction edge cases.

Coralsoft owned product shaping, engineering, QA, and release across a 16-week engagement.

Constraint

Turn the core customer journey into a dependable first release without overbuilding the product.

Estimated Timeline: 4 months
Estimated Team: 4 people
Estimated Budget: $15k – $25k
Platforms: 1

Estimated stack

React NativeExpoTypeScriptNode.jsPostgreSQLStripe

Delivery story

Invaluable Auctions: Bid Live: a focused product delivered from discovery to release

Challenge

The client needed a focused product for auction bidders. The first release needed lot discovery, live bid states, and watchlist alerts, while managing inventory and transaction edge cases.

How we built it

We mapped the core journey and data model first, then delivered lot discovery as a working vertical slice. The next iteration added live bid states and watchlist alerts, with authentication, validation, loading and failure states designed into each flow. A mobile-first TypeScript build using React Native, Expo, TypeScript, Node.js kept the interface and service contracts consistent; the final weeks focused on QA, accessibility, and release preparation.

Delivery

The delivered 16-week MVP let auction bidders complete the core journey without relying on disconnected tools. It provided a small, maintainable foundation for testing demand and prioritising the next release.