ServicesMobile app development

iOS App Development in Sydney

Sentia is an iOS app development company in Sydney, building apps since 2006, including Airtasker's iOS app. We build custom iPhone and iPad apps in Swift, and the platform behind them, for businesses across Australia.

Tell us about your project

iOS app development in Sydney, with the hard parts handled.

Apple's rules, handled.

App Store review, privacy rules and the yearly iOS update trip up a lot of apps. We build to Apple's guidelines from day one and manage every submission for you.

Built for the device, not just the screen.

Bluetooth sensors, offline use, live location and push notifications are where iOS apps get hard. We've shipped all of them, from taxi tracking to sleep sensors.

Native when it matters.

We build natively in Swift where performance and feel matter. If React Native suits your app better, or you need Android too, we'll give you a straight recommendation.

What we build

Custom iOS app development for iPhone and iPad.

iPhone apps built for real use, at scale.

Rydo

iPhone apps built for real use, at scale.

Apps for large audiences need to be fast, reliable and easy to use under pressure. We build native iPhone apps in Swift with real-time features, push notifications and performance monitoring, and handle App Store submission end to end.

See our work
Native Swift

Built in Swift for the speed and feel iPhone users expect.

Real-time features

Notifications, live updates and feeds that keep users engaged.

Offline-capable

Apps that keep working when the connection drops.

App Store releases

We handle submission, review management and release cycles.

iPad and iPhone apps for teams doing a job.

Eclipx Car Inspections — field inspector view.

iPad and iPhone apps for teams doing a job.

Apps for drivers, inspectors, field teams and clinicians work differently from consumer apps. We build for patchy connectivity, one hand occupied and time pressure, with offline-first architecture, camera capture and real-time dispatch built in.

See our work
iPad and iPhone

One app built for both, or a standalone iPad app with tablet-optimised layouts.

Offline-first

Works without signal and syncs automatically when the connection returns.

Capture

Camera, barcode scanning and document capture for field tasks.

Real-time dispatch

Jobs assigned and status updated as things happen.

iPhone apps that work with physical hardware.

Smart building desk booking, connected to access control and beacon location.

iPhone apps that work with physical hardware.

Connect iPhone and iPad apps to beacons, scanners, sensors and devices. We integrate Bluetooth and BLE, barcode and QR scanning, GPS and IoT hardware, built to work reliably in field conditions.

See our work
Bluetooth and BLE

Sensors, proximity detection and asset tracking via Bluetooth Low Energy.

Barcode and QR scanning

Fast, accurate scanning with the iPhone camera, no extra hardware needed.

Location and maps

GPS, maps and live tracking, from turn-by-turn routing to ride tracking.

Connected hardware

Control and monitor door locks, printers, sensors and IoT equipment.

The iOS app and the platform behind it.

Smartspace (web + mobile — smart building access and management)

The iOS app and the platform behind it.

An iPhone app is usually the front of something bigger, such as bookings, payments or a fleet operation. We build the app, the back end and the web platform together, so they ship and scale as one product.

See our work
APIs and integrations

Back ends and APIs built alongside the app, connected to the systems you already run. Explore API integration

Web platform

Admin tools and web apps that share business logic with the iOS app.

Android when you need it

Add a native Android app later on the same back end, without a rebuild. Explore Android app development

One team

Design, iOS, back end and web built together, with no handoffs between teams.

We can help with...
Mobile Phone App DevelopmentAPI & IntegrationsAndroid App DevelopmentReact Native DevelopmentMulti Platform Development
From build to App Store

From first conversation to the App Store, with Apple's rules built in from day one.

Scope before screens.

We work out what the app needs to do, who it's for and what has to sit behind it, and agree the requirements, a roadmap and a detailed estimate.

Designed for iPhone and iPad.

User flows, wireframes and interface design that follow Apple's conventions, so the app feels at home on iPhone and iPad before it's built.

Tested on real devices.

The app and its back end are built together, with testing on real devices throughout. You see working software early, not at the end.

Kept current after launch.

We handle App Store submission and review. After launch we keep the app current with each iOS release, through support and maintenance or ongoing development.

iOS apps we've built

Airtasker

Airtasker

Marketplace connecting people to complete everyday tasks and services

Industry

On-demand Service, Marketplace

RydoCase study

Rydo

A trusted, real-time rideshare alternative for Australian Taxis

Industry

On-demand Service, Transport & Logistics

EzWake

EzWake

Helping children build confidence and independence through smart sleep technology.

Industry

Health & MedTech

Opel Mobile Guardian

Opel Mobile Guardian

Smart Safety and Family Connectivity

Industry

Retail & eCommerce

View all mobile projects

Common questions

Every project is different. Send us your brief and we'll give you a detailed estimate, free of charge. For typical ranges, read how much it costs to build an app.

It depends on what the app needs to do. We build natively in Swift where performance and device features matter, and in React Native where one codebase for iOS and Android makes more sense. Still weighing up platforms? Start with our mobile app development overview.

Yes. We build standalone iPad apps with tablet-optimised layouts, or one app that works on both iPad and iPhone from a single codebase.

We manage App Store submission and review for you. If Apple raises an issue, we fix it and resubmit, and we build to Apple's guidelines from the start so there are fewer surprises.

Yes. We build native Android apps in Kotlin, often on the same back end as the iOS app. See Android app development.

Yes. We start with a review of the code and architecture, then fix what's urgent and plan the rest. Read more about project rescue.

Yes. Sentia can provide a mutual NDA that protects your IP and ours.

There are two options. You can move into support and maintenance, which we can manage, or keep developing while we support the current version. Here's why ongoing support matters.

Yes. If you're looking for an iOS app developer in Sydney or near you, Sentia has been building apps here since 2006 for clients across Australia, including Airtasker's iOS app. Our Zagreb team adds delivery capacity.