The short version
$50,000 to $300,000
A simple iOS MVP from a quality Australian team starts around $50K to $80K. Most commercial iOS apps land in the $80K to $150K range. Complex iOS apps with deep integrations, compliance, or advanced features push $200K to $300K+. Building iOS only vs cross-platform adds roughly 30 to 40% to the total cost.
Native iOS development uses Swift/SwiftUI and produces apps that are deeply integrated with Apple's ecosystem. Cross-platform development (Flutter, React Native) uses one codebase to target both iOS and Android.
The honest answer for most founders: cross-platform is the right starting point. You get both iOS and Android from one codebase, saving 30 to 40% on build cost. Quality is comparable for 95% of use cases.
Native iOS makes sense when you need deep Apple integrations that cross-platform tools cannot replicate well, like HealthKit, CarPlay, advanced ARKit features, or Apple Watch apps. For a fitness app, a food delivery app, or a marketplace, Flutter covers everything you need.
Cost comparison by approach
App complexity and screen count
More screens and more complex flows mean more design and development time. A simple 8-screen app costs significantly less than a 30-screen app with multiple user states. Every feature adds to the scope. Ruthless scoping is your biggest lever on cost.
Backend development
The iOS app is only the front end. Most apps require a backend API, database, authentication, and server infrastructure. This typically adds $20K to $60K to the total cost depending on complexity. Serverless architectures can reduce this for simpler apps.
Third-party integrations
Each meaningful integration adds time. Stripe payments: $8K to $15K. Push notifications: $5K to $10K. Social logins: $5K to $8K. Maps: $10K to $20K. Healthcare APIs or identity verification: $15K to $30K. Budget for these separately.
App Store review and submission
Apple's review process typically takes 1 to 3 days. Builds that do not meet Apple's guidelines get rejected and require rework. A good development team builds to App Store guidelines from day one, but budget time for at least one resubmission cycle.