Mobile app development
Flutter and mobile-first product builds for MVPs, internal tools, small business apps, and App Store / Google Play launches.
iOS and Android appsFlutter UI and flowsOffline-first dataStore release support
Our Services
Mobile apps, backend work, and deployment support.
I am Hoa Bui Duy, the maker behind Buddy Apps. I build focused mobile apps and practical web systems for founders, small businesses, and teams that need software shipped cleanly.
I can help from product scope to implementation: mobile app screens, local data flows, backend APIs, database workflows, server setup, production deployment, and app store release.
End-to-end builder
From idea to production without splitting the work across too many hands.
I build real products end to end, from idea to release.
I keep scope practical so small teams can ship without a heavy process.
I care about calm UX, local-first flows, and clean operational tools.
I can handle both the mobile app and the server/deployment side.
What I Can Build
Focused services for app projects that need to ship.
Backend and API implementation
Practical server work for apps that need authentication, database workflows, admin panels, promo systems, payments, or integrations.
API routes and servicesDatabase designAdmin dashboardsThird-party integrations
Deployment and operations
Setup and deployment for web apps, APIs, and production environments with a focus on simple maintenance after launch.
Vercel deploymentServer setupEnvironment configMonitoring basics
How Projects Run
Clear scope, focused build, clean handover.
The goal is to keep the work understandable and maintainable after launch, whether the project is a mobile MVP, a backend workflow, or a production deployment.
01
Scope
Clarify the product goal, users, core flows, technical risks, and launch target.
02
Build
Implement the app, backend, admin tools, integrations, and deployment pipeline in focused milestones.
03
Launch
Prepare production config, release builds, store submission support, and handover notes.
Proof Of Work
I use the same product discipline on client work.
Buddy Apps includes shipped mobile products across reminders, finance tracking, POS, and work reports. That product experience shapes how I approach outsourced builds: practical features, stable releases, and clear user flows.
Start A Project
Tell me what you want to build.
Share the product idea, expected platforms, backend needs, and any launch deadline. I will reply with a practical next step.
Prefer email? Contact hoa.buiduy@gmail.com.