Mobile development
Mobile app development for apps people use every day
Cross-platform and native apps for iOS and Android: booking, ordering, loyalty and the tools behind them.
Our mobile app development runs through the same six steps as every BigIn project, from planning to evaluation, with AI at every step and engineers making the calls. We have shipped consumer apps on React Native and Flutter, backed by Firebase and AWS, for clients in Vietnam and the US.
Why BigIn
What comes with every engagement
All-in-one team
One team covers the whole build: DevOps, developers, product designers, business analysts, project managers and QA engineers, with a project manager coordinating it.
Flexible adaptation
New apps start from our own frameworks and templates, so setup takes less time and the first working build arrives sooner.
Rigorous quality assurance
QA runs through every step on both iOS and Android: test coverage generated from the spec, defects sent back to the developer who owns them, and regression tests before each release.
The work itself
React Native and Flutter, proven on shipped apps
FreshnDeli, Ong Bau and CastMe run on React Native; Vedana runs on Flutter, with Firebase and AWS behind all of them. Every app ships with a test build you can use before launch, a regression-tested build with its defect report, and a final build checked against the spec. After launch, we keep working with you as the app grows.
See how we workApp screens
Phone screens from a shipped app
Selected work
Mobile development case studies
Three consumer apps we built, for service booking, food ordering and a coffee chain.

Vedana
Vedana – Service Booking
A mobile application that helps consumers to book massage, spa, barber services, etc.

FreshnDeli
FreshnDeli Food Ordering
A mobile application for consumers to order food from a cloud kitchen chain.

Ong Bau
Ong Bau Coffee Chain
A mobile app for the Ong Bau coffee chain that connects to its POS for online ordering, promotions and loyalty.
Plan your app with us
Tell us what you are trying to build. We will tell you what it takes: native or cross-platform, the team and the six steps to ship it.
Book a free consultation