Flutter Mobile App Developers for Singapore’s Fastest-Moving Teams
BATSTACK engineers Flutter and React Native apps with a single, maintainable, 100% custom codebase — native performance without the double build. Sub-second APIs, transparent Git + Jira, and a Sri Lanka time zone just 2.5 hours behind SGT for near-full working-day overlap.
Engineering-first — built for APAC velocity
100% custom Flutter codebase
One clean codebase across iOS and Android — extensible, testable, and yours. No low-code lock-in.
Native-grade performance
60fps UI and sub-second API responses held to a hard performance budget.
Total transparency
GitHub repo, Jira board, and Slack from sprint one — commit-level visibility.
Costed scope up front
Fixed sprint plan from Discovery; MVP in 4–6 weeks or a phased enterprise roadmap.
Almost the same clock
At UTC+5:30 we’re just 2.5 hours behind Singapore — effectively a shared working day, not an offshore handoff.
The full engineering stack — mobile to cloud
Cross-Platform Excellence
Flutter first (with React Native where it fits): one codebase, native feel, faster iteration for product-led teams.
Native Mobile
Native iOS (Swift) and Android (Kotlin) for platform-perfect performance and deep hardware integration.
Resilient Microservices & APIs
Node.js, Go, GraphQL, PostgreSQL — engineered for scale, real-time sync, and offline-first mobile.
Enterprise Security & Cloud
AWS (Singapore region available) + Cloudflare, CI/CD, automated testing, and PDPA-aligned data handling. Encrypted end to end.
A transparent 4-phase delivery framework
Discovery
A 30-minute technical discovery call becomes a costed scope — user flows, architecture, tech-stack decisions, and a fixed sprint plan. You leave knowing exactly what, when, and how much.
Interactive Prototype
A clickable, real-data prototype before full engineering begins — so you validate the product and align stakeholders before the expensive part starts.
Agile Sprint Engineering
Weekly sprints, demoed live. Every sprint ships working software to a staging build you can install, with full Git + Jira transparency throughout.
Deployment & SLA Support
Store submission, production launch on AWS/Cloudflare, monitoring, and a defined post-launch SLA for maintenance, updates, and scaling.
What will your build actually take?
Engineering estimates confirmed in Discovery; App Store review time excluded.
| MVP / Launch | Full-Scale Enterprise | |
|---|---|---|
| Timeline | 4–6 weeks | 12–16 weeks+ |
| Scope | Core flows, Flutter cross-platform, single backend | Multi-module, RBAC, integrations, admin portal |
| Stack | Flutter + Node/PostgreSQL | Native + microservices (Go/Node), GraphQL, multi-region cloud |
| Best for | Startups validating an APAC market | Funded scale-ups & enterprises |
| You get | Store-ready app + repo + docs | Platform + SLA + dedicated squad |
Frequently asked questions
Who owns the IP and source code?
You own 100%. On final payment all IP, source, and design assets transfer to you in writing, and you hold the GitHub repository from day one.
How much does the time zone overlap with Singapore?
Sri Lanka is UTC+5:30 — only 2.5 hours behind SGT (UTC+8). In practice you get a near-complete shared working day for live standups, pairing, and demos, not a slow offshore handoff.
Do we get repository access during the project?
Yes — GitHub repo, Jira board, and Slack from the first sprint, with real-time visibility of every commit and build.
Do you handle PDPA and data-residency requirements?
Yes. We deploy to AWS Singapore where residency is needed, follow PDPA-aligned handling, encrypt in transit and at rest, and apply least-privilege access. We’ll sign the data agreement your project requires.
Flutter or React Native — which should we choose?
We recommend based on your product, not our preference. Flutter suits pixel-precise, animation-rich UIs from one codebase; React Native suits teams already in the JavaScript/React ecosystem. Discovery ends with a clear, justified recommendation.
Ready to build your app?
Book a 30-minute technical discovery call — you’ll leave with a costed scope, a stack recommendation, and a fixed sprint plan.
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