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TH Office Tower, 35A Alley 45
Trần Duy Hưng, Cầu Giấy, Hà Nội

+84 34 667 4820

[email protected]

Mobile App Development Services in Australia

Your customers are on their phones.
Meet them there.

Mobile App Development Services for Australian Businesses

If your team repeats the same tasks every day — processing requests, generating reports, routing queries, reviewing documents — an AI agent eliminates the work entirely. A mobile app isn't just a smaller version of your website. ChainZ builds iOS and Android apps for Australian businesses — loyalty programs, ordering systems, field service tools, and consumer products — fast, reliable, and built for how people actually use phones.

This service is for you if…
01You need a customer-facing app — loyalty program, ordering system, booking flow, or consumer product — and you want it on both iOS and Android without maintaining two separate codebases.
02Your field staff or operations team needs a mobile tool — job management, inspection checklists, delivery tracking, or data capture — that works offline and syncs when connected.
03You already have a web application and want a mobile version that takes advantage of the phone — camera, GPS, push notifications, biometric auth — not just a responsive browser wrapper.
Mobile App Development
Typical delivery10–18 weeks
EngagementProject-based or T&M
Team size2–4 engineers
PlatformsiOS · Android · Cross-platform
Get a Free Estimate → Book a Discovery Call
Response within 24 hours
No commitment required
Talk directly with our founders
iOS + Android. One codebase. App Store handled.
what you get

Mobile App Development Services:
Six things we deliver.

01
iOS & Android app

A single React Native or Flutter codebase that produces native-quality iOS and Android apps — without the cost of maintaining two separate development tracks. Platform-specific behaviour handled correctly on each.

02
Backend API & data sync

The server-side API the app talks to — authentication, data storage, business logic, and push notification infrastructure. If you already have a web app backend, we connect to it. If not, we build it alongside the mobile app.

03
Native device features

Camera, GPS, biometric authentication, push notifications, offline mode, and deep linking — implemented correctly for each platform, not hacked together with generic wrappers that break on OS updates.

04
App Store & Google Play submission

We handle the submission process — app metadata, screenshots, privacy policy requirements, review guidelines compliance, and the back-and-forth with both stores if rejections occur. You don't have to navigate this alone.

05
Analytics & crash reporting

Instrumented from day one — user flows, feature usage, conversion steps, and crash reporting so you know what's working, what's not, and when something breaks before your users complain.

06
Handover & update strategy

Full code handover, environment documentation, and a clear update strategy — including how to handle OS version changes, App Store policy updates, and feature additions after launch.

how it works

From discovery
to App Store in 10–18 weeks.

01. Discovery & platform decision +
We map core user flows, decide between React Native and Flutter based on your requirements, scope the backend needs, and define App Store compliance requirements before any design or development begins.
Weeks 1–2 · Platform & scope sign-off
02. UX/UI design for mobile +
Mobile-first design — respecting iOS Human Interface Guidelines and Material Design principles for Android. Core flows designed and tested on real device sizes before development begins.
Weeks 2–4 · Design approval required
03. Build & test on real devices +
Development in two-week sprints. You get a TestFlight (iOS) and internal track (Android) build every sprint — testable on your actual phone, not just an emulator. Weekly demo calls to review progress.
Weeks 4–15 · Testable builds bi-weekly
04. QA, submission & launch +
Device matrix testing across popular iOS and Android versions, App Store and Google Play submission, any review feedback resolved, and go-live. 30-day post-launch support included.
Weeks 15–18 · Store submission + support
proof

Mobile apps we've shipped
to the App Store.

💰 Fintech & Banking

End-to-end mobile loan application platform

A fintech needed a mobile loan application platform — full borrower-facing app with document scanning, identity verification, loan calculator, and status tracking. ChainZ delivered iOS and Android from a single React Native codebase, with a FastAPI backend and admin interface. Architecture extended 6 months post-launch without a rewrite.

Both
iOS & Android from one codebase
↑ Architecture extended 6 months post-launch · Camera + biometric auth included
Live in production
💬 LINE Loyalty Platform

ChainZ built ChainHub — a multi-agent orchestration platform connecting 500+ AI models through a single API. ChainHub uses the same agent architecture we deploy for clients: routing logic, tool calling, context management, and fallback handling running reliably at scale, every day.

This proves we can build reliable, production-grade AI agent systems — not just working prototypes.
React Native iOS + Android Offline mode Push notifications App Store submission
technology

What we build with.

Cross-platform
React NativeFlutterExpoTypeScript
Native (where needed)
Swift (iOS)Kotlin (Android)XcodeAndroid Studio
Backend & Services
Node.jsFastAPIFirebaseSupabasePush (APNs/FCM)
Testing & Monitoring
TestFlightDetoxSentryFirebase AnalyticsCrashlytics
faq

Mobile App Development in Australia:
Questions we get asked.

01.React Native or Flutter — which do you recommend?+
React Native is our default for most business apps — large ecosystem, shared logic with a web React frontend if you have one, and excellent community support. Flutter is better when you need pixel-perfect custom UI across platforms. We make the recommendation with reasoning during discovery — no agenda either way.
02.Do you handle App Store and Google Play submission?+
Every agent we build has explicit confidence thresholds and human escalation paths. When the agent is uncertain, it flags the item for a human rather than guessing. We run extensive testing on real data before go-live, and the 30-day post-launch support period catches real-world edge cases that didn't appear in testing.
03.Can the app work offline?+
Yes — we build offline capability when your use case requires it. Field staff apps, inspection tools, and logistics apps often need to work in areas with poor connectivity and sync when back online. Offline capability adds approximately 20–30% to the build timeline and is scoped explicitly during discovery.
04.How much does mobile app development cost in Australia?+
A focused app with one user type, a core workflow, and an existing backend API typically falls in the AUD $35,000–$65,000 range. Apps with multiple user roles, a new backend, or complex native features typically range AUD $65,000–$140,000. We give you a specific estimate after discovery — no generic pricing.
05.How long does mobile app development take in Australia?+
A focused app typically takes 10–18 weeks end-to-end — from discovery to App Store approval. App Store review adds 1–3 weeks beyond development completion. We confirm the exact timeline during discovery, factoring in store review time.
06.We have an existing web app — can you build a mobile version?+
Yes — this is one of the most efficient setups. If your web app has a clean REST or GraphQL API, the mobile app connects to the same backend with no duplication. We review your existing API during discovery and flag any gaps before starting.
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