Product definition, user flows and mobile interaction design
Creative Agency
02 // MOBILE APP DEVELOPMENT
MOBILE APP DEVELOPMENT
EPIC STUDIO develops native iOS and Android apps and cross-platform products in React Native and Flutter. Engagements cover product definition, interface design, offline-first architecture, secure release pipelines and post-launch maintenance.
What the engagement covers
EPIC STUDIO develops native iOS and Android apps and cross-platform products in React Native and Flutter. Engagements cover product definition, interface design, offline-first architecture, secure release pipelines and post-launch maintenance.
Delivery is led by senior practitioners in EPIC STUDIO's Kolkata engineering base, with client hubs in Bengaluru, San Francisco, London and Singapore. Scope, acceptance criteria and exclusions are written into the statement of work before build starts.
Who it is for
- Product teams launching a consumer or B2B mobile product
- Enterprises extending an internal workflow or customer portal to mobile
- Fintech, healthcare and commerce teams with security or offline requirements
- Founders who need one codebase across iOS and Android
| Service | Mobile App Development |
|---|---|
| Provider | EPIC STUDIO |
| Base | Kolkata, India |
| Coverage | Worldwide, remote-first |
| Engagement | Discovery → build → launch → operate |
| Contact | contact@epic-studio.in |
Last reviewed 2026-10-23. This page describes EPIC STUDIO's delivery model; it is not a performance guarantee. Scope-specific commitments belong in the signed statement of work.
Deliverables
What you actually receive
Native iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose) builds
React Native and Flutter cross-platform applications
Offline-first sync, local storage and conflict resolution
Biometric authentication, secure storage and device integrity checks
App Store and Google Play release management and CI pipelines
Process
How the work runs
Platform and scope decision
We choose native or cross-platform based on performance needs, device APIs, team skills and release cadence — not fashion.
Prototype the risky path
The hardest flow (payments, offline sync, camera, Bluetooth or biometrics) is proven in a thin slice before full build.
Design and build in vertical slices
Each slice includes UI, API integration, error states, analytics and tests, reviewed on real devices.
Release readiness
Store assets, privacy disclosures, crash reporting, performance profiling and staged rollout plans are completed before submission.
Maintain and iterate
OS upgrades, dependency patches and store policy changes are handled through an agreed maintenance window.
Stack & outcomes
Tools and results
Typical stack
SwiftSwiftUIKotlinJetpack ComposeReact NativeFlutterTypeScriptGoGraphQLRESTPostgreSQLFirebase
Stack is selected per engagement; this is the published technology set, not a mandatory bundle.
What good looks like
- One reviewed release pipeline for every target platform
- Offline and poor-network behaviour designed, not patched
- Clear privacy and permission model for store review
- Crash, performance and adoption telemetry from launch day
Questions
Frequently asked
Should we build native or cross-platform?
Choose native when the product depends on intensive device APIs, complex background processing, or platform-specific performance. Choose React Native or Flutter when one team must ship a consistent product to both stores quickly and the experience does not hinge on low-level device features.
Does EPIC STUDIO handle App Store and Google Play submission?
Yes. Release work includes store listings, screenshots, privacy declarations, data-safety forms, build signing, TestFlight or internal-track testing, and staged rollout.
Can the app work offline?
Yes. We design local persistence, sync queues and conflict-resolution rules for offline-first products, then test them under real network loss rather than only on a simulator.
How is mobile security handled?
We use platform secure storage, biometric authentication, certificate pinning where appropriate, jailbreak and root signals, and least-privilege API tokens. The control set is mapped to the OWASP Mobile Application Security Verification Standard.
Do you maintain apps after launch?
Yes, through an agreed maintenance or retainer scope covering OS updates, dependency upgrades, crash triage, store compliance and small feature increments.
Can you work with our existing backend?
Yes. We integrate with existing REST, GraphQL or gRPC services and document any contract changes. If the backend needs work, that is scoped separately so mobile delivery is not blocked.
Primary references used to define the standards and constraints on this page.
- Human Interface Guidelines — Apple
- Android core app quality guidelines — Android Developers
- OWASP Mobile Application Security — OWASP Foundation
- React Native documentation — Meta
Related
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Explore →Next step
Have a brief that needs senior hands?
Tell us the outcome, the constraints and the deadline. We will come back with a scoped plan, not a generic deck.