Native iPhone and iPad apps built in Swift, approved on the App Store, and connected to the systems your business runs on.
Advayan’s iOS app development services take your app from idea to App Store and beyond, covering product strategy, UI/UX design, Swift and SwiftUI development, security, testing, launch, and long-term support. We build secure, scalable apps for iPhone, iPad, Apple Watch, Apple TV, and Apple Vision Pro, and we connect them to Salesforce, SAP, and the other platforms behind your business.
From the first product workshop to every release after launch, we cover each stage of iOS development. Choose the full lifecycle or only the services you need.
We keep your app secure and current with crash monitoring, bug fixes, performance tuning, and new features. Every year, we update your app for the next iOS release and Apple's latest SDK requirements, so an OS update never breaks your app.
We turn your app idea into a clear, buildable plan. Our consultants validate the concept, define core user journeys, and recommend the right architecture and tech stack for your goals. Every engagement starts with a discovery workshop and ends with a prioritized feature roadmap and a detailed estimate.
We design intuitive interfaces in Figma that follow Apple's Human Interface Guidelines and the current Liquid Glass design language. Clickable prototypes let you test real flows with users before development begins, and every screen supports accessibility features like Dynamic Type and VoiceOver. Need design capacity inside your own team? Bring in our dedicated UI/UX designers.
Our engineers build native apps in Swift and SwiftUI that are fast, stable, and tailored to your business. iPad apps get purpose-built layouts with split view, multitasking, and Apple Pencil support rather than a stretched phone screen. We use Apple technologies like Face ID, Apple Pay, Siri, and Core ML wherever they add real value for your users.
We build internal apps for field teams, sales reps, and operations staff that plug into your CRM, ERP, and approval workflows. Apps can be distributed privately through Apple Business Manager and managed with your MDM platform, so only your people can access them.
We extend your product across the Apple ecosystem with watchOS, tvOS, and visionOS apps. Each one is designed around how people actually use that device, from quick glances and complications on Apple Watch to immersive spatial experiences on Apple Vision Pro.
We move legacy Objective-C and UIKit apps to modern Swift and SwiftUI one module at a time, so your live app keeps running while the codebase improves. We also rebuild Android apps natively for iOS and take over existing apps from other vendors, starting with a code and architecture audit.
We combine manual and automated testing across devices and iOS versions to catch crashes, performance issues, and security gaps before your users do. Stakeholders review real builds on real devices through TestFlight at every milestone.
Whether you are validating a new idea or equipping thousands of employees, we shape the build around the kind of app you need.
| App Type | What We Deliver |
|---|---|
| Startup MVPs | A focused first release with the core features you need to test demand, gather feedback, and raise funding |
| Consumer Apps | Polished, high-engagement apps built for App Store discovery, retention, and in-app revenue |
| Enterprise and Internal Apps | Secure apps for employees and field teams, connected to CRM and ERP data and distributed privately |
| eCommerce and Subscription Apps | Fast checkout with Apple Pay, subscriptions with StoreKit, and loyalty features that drive repeat purchases |
| SaaS Companion Apps | Native iOS versions of your web platform with offline access, push notifications, and real-time sync |
| IoT and Device Companion Apps | Apps that pair with sensors, wearables, and smart devices over Bluetooth, Wi-Fi, and HomeKit |
We build the Apple-native features users expect and the business features that drive results.
Sign in with Apple, Face ID, and Touch ID for fast, secure login
Apple Pay, in-app purchases, and subscriptions through StoreKit
Push notifications, Home Screen widgets, and Live Activities
Siri and Shortcuts support through App Intents
Offline mode with background sync when the connection returns
Maps, location tracking, and geofencing with Core Location and MapKit
HealthKit and Apple Watch data for health and fitness apps
Camera, document scanning, and barcode reading
In-app chat, video calls, and real-time updates
Analytics, crash reporting, and performance monitoring from day one
An app is only as useful as the data behind it. We connect your iOS app to the platforms your teams already rely on.
Most custom iOS apps reach a fully functional first release in about 3 to 6 months. We work in two-week Agile sprints, so you review a working build at the end of each one.
We define your goals, users, core features, and compliance needs. You receive a feature roadmap, an architecture plan, and a detailed estimate.
We create wireframes and clickable prototypes, test key flows, and refine the design with your team’s feedback before development begins.
We build in sprints with continuous integration and code reviews on every change. You see progress in a working build every two weeks.
We test functionality, performance, accessibility, and security across devices throughout the build, not only at the end.
We prepare your listing and privacy details, submit the app to Apple, and manage review feedback until your app goes live.
We monitor crashes and performance, act on user feedback, and ship new features and iOS updates as your product grows.
Security is part of the architecture from the first sprint, not a checklist at the end. Every app we build includes protections matched to your data and your industry.
The right choice depends on your users, features, and budget. Here is how we help clients decide.
| Choose Native iOS When | Choose Cross-Platform When |
|---|---|
| Your app relies on Face ID, ARKit, HealthKit, or Apple Watch | You need iOS and Android apps at the same time |
| Most of your highest-value users are on iPhone | Your budget favors one shared codebase |
| Performance and polish are top priorities | Your features don't depend heavily on device hardware |
| You want new iOS features as soon as Apple releases them | Speed to market on both platforms matters most |
If cross-platform is the better fit, our Flutter app development services deliver both apps from a single codebase.
We build apps around the workflows, regulations, and customers of your industry.
HIPAA-conscious apps for telemedicine, patient engagement, appointment booking, remote monitoring, and HealthKit-connected wellness tracking.
Shopping apps with personalized recommendations, Apple Pay checkout, loyalty programs, and AR product previews.
Secure mobile banking, digital wallets, investment dashboards, and loan workflows with biometric login and integration with core banking systems.
IoT-connected production monitoring, inspection and quality checklists, and real-time analytics that reduce downtime.
Booking, contactless check-in, digital room keys, and personalized guest services.
Property search with geolocation, virtual tours, and built-in CRM features that help agents close deals faster.
Virtual classrooms, course delivery, interactive assessments, and progress tracking for students and educators.
Driver and delivery apps with live tracking, route optimization, proof of delivery, and barcode-based inventory management.
We build with Apple’s latest languages, frameworks, and tools so your app stays fast, secure, and ready for future iOS releases.
| Category | Technologies |
|---|---|
| Languages | Swift, Objective-C |
| UI Frameworks | SwiftUI, UIKit |
| Apple Frameworks | Core ML, Foundation Models, ARKit, RealityKit, App Intents, StoreKit, HealthKit, HomeKit, MapKit |
| Data and Storage | SwiftData, Core Data, Realm, SQLite, CloudKit, Keychain |
| Platforms | iOS, iPadOS, watchOS, tvOS, visionOS, macOS (Catalyst) |
| Back End and Cloud | Firebase, AWS, Microsoft Azure, Google Cloud, REST and GraphQL APIs |
| Testing | XCTest, Swift Testing, XCUITest, TestFlight |
| Tools and CI/CD | Xcode, Xcode Cloud, Fastlane, GitHub Actions, Swift Package Manager |
We pair native iOS engineering with deep enterprise integration experience, so your app launches polished and works with the systems behind it.
Our engineers work in Swift and SwiftUI every day and follow Apple's guidelines closely, which keeps App Store reviews smooth.
Salesforce, SAP, and MuleSoft projects are core to our work, so connecting your app to business data is familiar ground.
We stay with you after launch through maintenance, monitoring, and yearly iOS upgrades.
Need extra capacity on your own team? You can hire dedicated iOS developers on a monthly engagement.
Choose the way of working that fits your scope, timeline, and budget.
One agreed fee for a clearly defined scope and timeline
MVPs and well-specified projects
You pay for actual hours and can reprioritize features at any time
Evolving products and ongoing feature work
Engineers, designers, and QA specialists assigned to your product at a monthly rate
Long-term roadmaps and scaling teams
Fixed-price milestones with time-based billing for changes
Complex builds that need predictability and flexibility

Advayan’s SAP S/4HANA migration process was nothing short of impressive. The team handled everything professionally, ensuring minimal disruption to our core operations. We felt supported every step of the way.

From consultation to execution, Advayan demonstrated deep knowledge and a collaborative spirit. Their strategic inputs helped us solve complex issues in our SAP upgrade process.

Advayan’s documentation and training support after deployment were extremely helpful. Our internal teams were onboarded smoothly, and productivity didn’t take a hit.

Our document workflows were all over the place before FLM implementation. Advayan helped us digitize and organize everything it's now fast, efficient, and environmentally friendly.

Advayan’s SAP S/4HANA migration process was nothing short of impressive. The team handled everything professionally, ensuring minimal disruption to our core operations. We felt supported every step of the way.

From consultation to execution, Advayan demonstrated deep knowledge and a collaborative spirit. Their strategic inputs helped us solve complex issues in our SAP upgrade process.

Advayan’s documentation and training support after deployment were extremely helpful. Our internal teams were onboarded smoothly, and productivity didn’t take a hit.

Our document workflows were all over the place before FLM implementation. Advayan helped us digitize and organize everything it's now fast, efficient, and environmentally friendly.

From initial planning to final rollout, Advayan’s G2C project support was outstanding. The solution was scalable, secure, and well received by users.

Working with Advayan on our TPM implementation was a smart decision. Their integration of VisualFabriq significantly improved our promotional planning and gave us better visibility over performance.

We had a challenge integrating mobile tools with Salesforce. Their dev team solved it quickly and offered smart suggestions that improved the final product significantly.

We consider them a long-term partner now. Advayan’s innovative mindset and consistent execution helped our organization modernize across multiple touchpoints.

From initial planning to final rollout, Advayan’s G2C project support was outstanding. The solution was scalable, secure, and well received by users.

From initial planning to final rollout, Advayan’s G2C project support was outstanding. The solution was scalable, secure, and well received by users.

Working with Advayan on our TPM implementation was a smart decision. Their integration of VisualFabriq significantly improved our promotional planning and gave us better visibility over performance.

We had a challenge integrating mobile tools with Salesforce. Their dev team solved it quickly and offered smart suggestions that improved the final product significantly.

We consider them a long-term partner now. Advayan’s innovative mindset and consistent execution helped our organization modernize across multiple touchpoints.

From initial planning to final rollout, Advayan’s G2C project support was outstanding. The solution was scalable, secure, and well received by users.
Tell us about your idea, and we’ll come back with a recommended approach, a timeline, and a detailed estimate. Your first consultation is free.
Most projects take about 3 to 6 months to reach a fully functional version, depending on complexity and features. A focused MVP can launch sooner, and larger enterprise apps with many integrations can take longer. We share working builds every two weeks so you can give feedback throughout.
Cost depends on feature complexity, design depth, the number of integrations, compliance requirements, and how many Apple devices you target. We provide a detailed, line-item estimate after a free discovery call, so you know exactly what you’re paying for before development starts.
For most businesses targeting high-value customers, yes. Apple reports that the App Store ecosystem facilitated more than $1.4 trillion in developer billings and sales in 2025 and averaged over 850 million weekly users across 175 countries and regions.
Build native if your app relies on Apple hardware features, needs top performance, or mainly targets iPhone users. Choose cross-platform, such as Flutter, if you need iOS and Android at launch on a tighter budget. We recommend the right approach during discovery.
We build new iOS apps in Swift, Apple’s modern programming language, using SwiftUI for interfaces. We also maintain and modernize existing Objective-C and UIKit codebases, migrating them to Swift step by step when it makes sense.
Yes. We start with a code, architecture, and performance audit, then fix critical issues first and improve the app step by step without disrupting your live users.
Yes. We handle the complete submission process, including a pre-review guideline check, privacy disclosures, App Store listing preparation, and responses to Apple’s review team.
A rejection is usually a fixable round trip. We review Apple’s feedback, resolve the issue, and resubmit quickly. Our pre-submission audit is designed to catch the most common problems before review.
Yes. Publishing on the App Store requires a membership in the Apple Developer Program, which costs $99 per year. We recommend enrolling under your own organization so you keep full control of your app listing, and we guide you through the setup.
Yes. Our ongoing maintenance includes crash and performance monitoring, security patches, feature improvements, and updates for each new iOS release and SDK requirement.
Yes. We integrate payment gateways, analytics tools, and third-party APIs. For enterprise clients, we connect apps to Salesforce, SAP, and other systems through secure APIs and MuleSoft.
We use Keychain encryption, certificate pinning, biometric authentication, and secure session handling. We design the architecture around the regulations that apply to you, such as HIPAA, GDPR, or PCI DSS.
We test on a range of iPhone and iPad models and across multiple iOS versions, optimizing launch time, responsiveness, memory use, and interface consistency for every user.
Yes. We rebuild your app natively in Swift, adapt the design to Apple’s Human Interface Guidelines, and migrate your data and back-end connections so existing users keep their accounts.
Yes. We build purpose-built iPad layouts, standalone and companion watchOS apps, and visionOS apps for Apple Vision Pro using SwiftUI and RealityKit.