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Mobile app development servicesfor iOS and Android.

Nine years shipping mobile apps that don't feel like web apps in a wrapper. Our mobile app development services cover React Native, Flutter, and native Swift and Kotlin — with the judgment to know which one your product actually needs, and the architecture to make it hold up after the first version ships.

  • Cross-platform
  • 60fps animations
  • OTA updates
  • Typed end-to-end

Why Entalogics for mobile

Four things every
mobile app
actually needs.

Most cross-platform apps we inherit from other mobile development companies have the same four problems — janky scroll performance nobody profiled, navigation that fights the platform, a state layer that re-renders the entire screen on every keystroke, and no OTA update strategy. We fix the architecture before the app store reviews do.

Performance01

60fps or users notice. There's no in between.

Render cycles profiled from day one. FlatList virtualisation, memoised components, native driver animations. A dropped frame or a sluggish list isn't a visual issue — it's a one-star review on the App Store or Play Store.

Architecture02

Feature modules, not a screens folder.

Each feature in a mobile app development project owns its screens, hooks, types, and tests. Navigation is typed. Shared components live in a design system package. Two engineers work on two features without merge conflicts eating the sprint.

State03

Server state and client state don't belong in the same store.

TanStack Query for server data. Zustand or Jotai for local UI state. Deep link state handled by the router. Less global state means fewer re-renders, faster screens, and a codebase the next mobile developer can actually read.

Type safety04

TypeScript strict, from API contract to component prop.

Zod-validated API responses, typed navigation params, typed design tokens. When the backend changes a field, the mobile app fails to compile — not to render in a real user's hand.

When cross-platform, when native

Mobile development is a tool decision.
Not a tribal one.

React Native, Flutter, or native iOS and Android — each has a real trade-off. We'll tell you on the first call which one fits your product, your team, and your timeline. No framework loyalty.

PICK REACT NATIVE WHEN

  • Your team knows JavaScript and TypeScript — the ramp-up into React Native is near zero
  • Sharing logic and types with a Next.js or Node.js web stack matters to your team
  • OTA updates via Expo EAS are important — skip app store review for JavaScript bundle fixes
  • A large hiring pool of JavaScript developers matters more than framework-specific expertise

PICK FLUTTER WHEN

  • Pixel-perfect custom UI is the product — Flutter renders every pixel on its own canvas
  • iOS, Android, web, and desktop from one codebase is a genuine requirement, not a nice-to-have
  • Your product is animation-heavy or graphics-heavy and Impeller's GPU rendering earns its place
  • Your team can invest in learning Dart and doesn't carry JavaScript as the default

GO NATIVE IOS OR ANDROID WHEN

  • Deep hardware integration — Bluetooth, ARKit, camera pipelines — where the abstraction layer costs more than it saves
  • App size and startup time are hard requirements under 5MB that a cross-platform runtime can't hit
  • Platform-specific UX is non-negotiable and the budget genuinely supports two separate codebases

WE SAY NO WHEN

  • "Wrap our website in a WebView and call it a mobile app." That's not mobile app development.
  • "Build it in Flutter because someone read an article." We'll tell you honestly if React Native fits better.
  • "We need both apps in three weeks." That ship has sailed.

What we build for mobile

Six mobile app development
surfaces. One quality bar.

The shapes of mobile app development we ship most — built for the App Store and Google Play, not a demo running on the engineer's phone.

  • S01

    Consumer apps

    Onboarding flows, push notifications, in-app purchases, analytics — the full consumer mobile stack polished to pass App Store and Play Store review on the first submission.

    REACT NATIVEEXPOREVENUCATFIREBASE
  • S02

    SaaS companion apps

    Your web dashboard, in your user's pocket. Offline-first sync, biometric auth, push notifications tied to backend events.

    REACT NATIVETANSTACK QUERYMMKVONESIGNAL
  • S03

    E-commerce mobile apps

    Product browse, cart, checkout, order tracking — native-feel scroll performance on product lists with hundreds of SKUs, not a mobile web page wearing an app icon.

    REACT NATIVESHOPIFYALGOLIASTRIPE
  • S04

    Internal field apps

    Barcode scanning, offline data collection, GPS tracking, photo capture — native iOS and Android tools for teams working outside the office.

    REACT NATIVEEXPOSQLITEMAPBOX
  • S05

    Flutter brand apps

    Pixel-perfect brand experiences where every animation, transition, and micro-interaction is custom. Flutter's GPU rendering earns its place here.

    FLUTTERRIVERPODIMPELLERFIREBASE
  • S06

    Native performance layers

    Swift or Kotlin modules for Bluetooth, ARKit, camera, or codec work — integrated into a cross-platform shell or shipped as standalone native iOS and Android apps.

    SWIFTKOTLINTURBO MODULESPLATFORM CHANNELS

The playbook

Mobile app development patterns
we ship on repeat.

Proven in production mobile apps — not conference demo projects.

  • P01

    Expo-first for React Native

    Expo managed workflow by default, EAS Build for cloud compilation, EAS Update for OTA patches that skip app store review. Eject to bare only when a native module genuinely demands it.

  • P02

    Typed navigation

    Every route, every param, typed end-to-end. A screen refactor that changes a param type fails the build — not the QA pass three days and one App Store rejection later.

  • P03

    Server state via TanStack Query

    Cache-first, background refetch, optimistic updates. No manual loading/error/success state spread across every mobile screen. Data shows instantly from cache and refreshes silently.

  • P04

    Design tokens across platforms

    Colour, spacing, and typography as code — shared between iOS and Android. Light/dark mode, dynamic type, and brand variants from one token source, not two.

  • P05

    Detox or Maestro for E2E tests

    Real device end-to-end tests on critical user flows — onboarding, purchase, deep link. Catches the regression a unit test can't, before App Store review does.

  • P06

    OTA updates with rollback

    EAS Update for React Native, Shorebird for Flutter. Push a fix to production without waiting for App Store or Play Store review. Rollback if the update degrades a metric.

Signature case

A consumer app,
rebuilt from WebView to React Native.

A B2C fintech app wrapped in a WebView — 4.2s cold start, 3.1-star average rating, scroll jank on every list, and push notifications that arrived 30 seconds late because the WebView had to wake up first. Rebuilt in React Native with Expo, TanStack Query, and native push in 10 weeks. Rating climbed to 4.7 within two months.

Before

Cold start 4.2s · rating 3.1★ · WebView scroll jank · push delay 30s · no OTA updates

After

Cold start 1.1s · rating 4.7★ · native FlatList at 60fps · instant push · EAS OTA live

  • Cold start improvement−74%
  • App store rating+52%
  • To fully rebuilt10wk
  • Shipped regressions0

Engagement shape

Eight to ten weeks
to a shipped mobile app.

A typical mobile app development engagement, end-to-end. Screen by screen — never a six-month big bang. The current app stays live the entire time we work.

  • W01

    Audit + RFC

    Two senior mobile developers on the project. Render profiling, navigation audit, state architecture review. A ranked, dollarized RFC — not a generic mobile app development proposal.

  • W02–03

    Foundation + first screen

    Expo or Flutter baseline, design tokens established, typed navigation wired in, one production screen built end-to-end. Real performance numbers on a physical device, not a simulator.

  • W04–08

    Build screen by screen

    Feature by feature under feature flags. TestFlight and internal Play Store track releases weekly. Your roadmap keeps moving throughout.

  • W09+

    App Store submission + handoff

    Store assets, review guideline compliance, first submission to both stores. App Store review typically takes 1–2 business days. Runbook handed to your team — or we stay on retainer.

Stack

Tools we
Tools we reach
reach for for first.

Picked for production mobile — not tutorial starters.

Framework
React Native · Expo · Flutter · Swift · Kotlin
Language
TypeScript (strict) · Dart · Zod · Swift · Kotlin
State
TanStack Query · Zustand · Riverpod · MMKV
Testing
Detox · Maestro · Jest · Flutter Test · Patrol
Infra
EAS Build · EAS Update · Fastlane · Firebase · Sentry

Engagement

Three ways to work with us on
mobile app development.

No hourly retainer billing for "thinking time." Every path is fixed-quote or transparently rated.

FIXED SCOPEone-off build

Ship a mobile app, end-to-end.

One product, scoped and priced once, built entirely by senior mobile developers. RFC to App Store submission in 8–14 weeks.

FIXED SCOPE

  • Zero juniors on client work
  • Fixed quote in week 1
  • Code, infra, runbook — yours
Plan a fixed build
DEDICATED TEAMmonthly

Hire dedicated mobile developers.

A pod of senior mobile app developers embedded in your Slack, your Linear, your standups. Resize or pause with 30 days' notice.

PER ENGINEER

  • Same senior bar as fixed-scope
  • Embedded in your team
  • Founder-direct escalation
Hire dedicated mobile devs
ENGAGEMENTcustom

Strategic mobile app development partnership.

For product orgs that need more than delivery — a long-term mobile development partner: cross-platform architecture, a performance program, hiring help.

PROCUREMENT-FRIENDLY

  • Multi-quarter roadmap
  • Architecture & hiring partner
  • Procurement-friendly paper
Speak to the founder
FAQ

Sharp questions,
straight answers.

React Native vs. Flutter, PWAs, App Store timelines — the questions we get on every mobile app development call.
React Native when your team knows JavaScript and wants to share code with your web stack. Flutter when pixel-perfect custom UI is the product and your team can invest in Dart. For most SaaS and consumer mobile apps, React Native with Expo ships faster and draws from a larger hiring pool. We'll tell you which fits on the first call.
A PWA when your users come through web search and don't need push notifications, biometrics, or offline access. A native mobile app when you need the App Store, Play Store, or a first-class mobile experience. We'll tell you honestly which one earns its build cost.
Yes. We audit every native API, map it to a cross-platform equivalent or Turbo Module, and rebuild screen by screen. The existing native app stays live on both stores until the new one is ready to replace it.
Yes. The mobile developers who write the RFC ship the production code. No handoff to a junior team mid-engagement, no account manager in the middle.
Yes. We adapt to your navigation library, state management, and testing setup. If something structural needs changing, we flag it in the RFC. If it works, we build on top of it instead of rewriting it to match our preferences.

Founder-direct

Tell us whatyou're building.

Thirty minutes with the founder — a senior mobile app developer, the relevant playbook, and a candid read on whether React Native, Flutter, or native is right for your product.