Custom iOS App Development
We design and build native iOS apps around your users and goals, using Swift, clean architecture, modular code, and automated testing.
iOS App Development
iOS App Development Services for iPhone, iPad, and the Apple Ecosystem
Xcrino Business Solutions is an iOS app development company based in New Delhi, India. We build native iPhone and iPad apps in Swift and SwiftUI, covering strategy, UX, engineering, testing, App Store release, and yearly upkeep, including enterprise apps connected to ERP, CRM, and AI systems.
Xcrino has served 560 clients in 26 countries since 2016, with 69+ in-house developers and a 94% project success rate.
- Since 2016
- 560
- clients served
- 26
- countries
- 69+
- developers
- 94%
- project success rate
At a glance
Key takeaways
- iOS app development services cover design, Swift engineering, testing, App Store release, and maintenance for iPhone, iPad, and other Apple platforms.
- Swift and SwiftUI are Apple's current language and UI framework, and UIKit remains useful for mature or specialised screens.
- Since 28 April 2026, apps uploaded to App Store Connect must be built with Xcode 26 and the iOS 26 SDK, so iOS apps need a toolchain upgrade every year.
- App Review can reject an app for privacy, payment, or guideline issues, so compliance is designed in from the first sprint.
- Choose native iOS for Apple Pay, widgets, Live Activities, HealthKit, or Apple Watch, and cross-platform when you need both stores quickly.
Quick answer
What are iOS app development services?
iOS app development services cover the strategy, UX design, engineering, testing, App Store release, and maintenance of apps for iPhone, iPad, Apple Watch, and other Apple platforms. Xcrino Business Solutions, founded in 2016 in New Delhi, builds native iOS apps with Swift and SwiftUI, enterprise iOS apps integrated with ERP and CRM, and AI-powered iOS apps, and keeps them compliant with Apple's yearly SDK and App Store requirements, for clients in 26 countries.
Introduction
iOS Users Expect Polish, Privacy, and Performance
Apple's ecosystem rewards apps that feel native, protect user data, and keep pace with each new OS release. It also enforces strict standards: App Review checks, privacy disclosures, and a minimum SDK that moves up every year. An app that ignores these rules can be rejected or stop shipping updates.
As an iOS app development company with deep experience in enterprise software, we build apps that follow Apple's Human Interface Guidelines, run smoothly across iPhone and iPad models, and connect cleanly to the systems behind them. Our iOS app development services cover consulting, UI/UX design, Swift and SwiftUI engineering, API integration, QA, App Store release, and ongoing upkeep, delivered by one accountable team.
Services
What iOS app development services does Xcrino offer?
| Service | Best for |
|---|---|
| Custom iOS App Development | New iPhone and iPad apps for consumers, SaaS products, and business teams |
| iPhone App Development | Mobile-first products and customer apps |
| iPad App Development | Productivity, field, and large-screen workflows |
| Enterprise iOS App Development | Managed device fleets and ERP-connected tools |
| Swift and SwiftUI Development | Modern, maintainable native apps |
| Apple Watch and Wearable Apps | Companion and wrist-first experiences |
| AI-Powered iOS Apps | Assistants, recognition, and personalization |
| iOS UI/UX Design | Interfaces that follow Apple's design standards |
| iOS App Modernization | Objective-C and UIKit apps, SDK upgrades |
| QA and Device Testing | Stability across iPhone and iPad models and iOS versions |
| App Store Release and Compliance | Submission, privacy labels, and annual SDK upkeep |
| Maintenance and Support | Monitoring, fixes, and new features |
iPhone and iPad App Development
We build iPhone apps and iPad apps that adapt to different screen sizes, orientations, and multitasking, so large-screen users get a proper experience rather than a stretched phone layout.
Enterprise iOS App Development
Our enterprise iOS app development services serve organizations that run apps on managed Apple devices: field service, sales, inspections, inventory, approvals, and logistics. They include secure authentication, role-based access, offline mode, and private distribution to employees where your IT team requires it.
Swift and SwiftUI Development
Swift is Apple's modern language for its platforms, and SwiftUI is its declarative UI framework. We use both for new projects, with UIKit where mature or specialized components call for it.
Apple Watch and Wearable Apps
Apple Watch companion apps for notifications and quick actions can be scoped alongside the iPhone app when your product needs them.
AI-Powered iOS Apps
We build assistants, image and text recognition, smart search, and recommendations into iPhone and iPad apps. Features that handle sensitive data can run on the device, and heavier tasks run in the cloud.
iOS UI/UX Design
Our designers follow Apple's Human Interface Guidelines, accessibility standards, and adaptive layouts, from wireframes to polished prototypes.
iOS App Modernization
We migrate Objective-C and UIKit apps to modern Swift and SwiftUI in stages, upgrade SDKs, replace deprecated APIs, and fix performance and security gaps.
QA and Device Testing
We test across iPhone and iPad models, iOS versions, screen sizes, and network conditions, using automated tests, TestFlight beta distribution, and real devices.
App Store Release and Compliance
We prepare builds, store listings, privacy disclosures, and review notes, manage staged releases, and keep your toolchain current with Apple's yearly requirements.
Maintenance and Support
Crash and performance monitoring, new-OS compatibility, dependency and security updates, and feature releases.
Native iOS vs cross-platform
Native iOS or Cross-Platform? How to Decide
| Choose | When | Trade-offs |
|---|---|---|
| Native iOS (Swift + SwiftUI) | When: You need top performance, deep Apple features, or an iOS-first audience | Trade-offs: Separate Android codebase if you also need Android |
| Swift with UIKit components | When: You maintain an older app or need mature, specialized UI | Trade-offs: Mixed code styles need careful structure |
| Flutter or React Native | When: You need to launch on iPhone and Android together from a single UI codebase | Trade-offs: Some advanced Apple features need native modules |
| Kotlin Multiplatform (shared logic) | When: You want shared business logic with native UIs | Trade-offs: Needs careful architecture |
Quick guide
- Apple Pay, widgets, Live Activities, HealthKit, or Apple Watch as core features? Lean native.
- iOS-first market or managed iPad and iPhone fleet? Native iOS is usually the right choice.
- Fast MVP for both platforms? Cross-platform may suit you better.
During discovery we recommend one of these routes for your app, and we say so plainly when cross-platform is the better choice.
SwiftUI vs UIKit
SwiftUI or UIKit? A Practical Answer
- New apps: we default to SwiftUI for speed, consistency, and maintainability, adopting UIKit where a component needs it.
- Existing UIKit apps: we usually migrate screen by screen rather than rewriting everything, so you keep shipping while the codebase modernizes.
- Deployment targets: we choose the minimum iOS version from your user analytics, which determines which SwiftUI features you can rely on.
Apple SDK and App Store compliance
How does Xcrino keep your app compliant with Apple's SDK and App Store requirements?
Apple updates its requirements every year. An app that falls behind can't be updated on the App Store. We treat compliance as part of development, not an afterthought.
- Yearly SDK minimum: since 28 April 2026, apps uploaded to App Store Connect must be built with Xcode 26 or later using the iOS 26, iPadOS 26, tvOS 26, visionOS 26, or watchOS 26 SDK. We upgrade toolchains, CI pipelines, and third-party SDKs ahead of each deadline.
- Lower deployment targets stay possible: you can build with the newest SDK while still supporting older devices, based on your audience.
- Privacy readiness: accurate App Privacy labels, a live privacy policy, correct permission prompts, and a review of third-party SDKs. Submissions depend on a live privacy policy URL, complete App Privacy labels, accurate metadata, and compliance with the App Review Guidelines.
- App Review readiness: guideline checks, demo accounts, review notes, and a plan for any rejection feedback.
- In-app purchases and subscriptions: correct StoreKit implementation and compliance with Apple's payment rules.
- New-OS readiness: testing against OS betas each summer so your app is ready on release day.
Last reviewed: October 2026. Apple's rules change each year. We verify current requirements on Apple's developer site at the start of every release cycle.
Apple ecosystem and features
Which Apple platform features can Xcrino build into your app?
- Authentication and trust: Face ID and Touch ID, passkeys, and Sign in with Apple
- Payments: Apple Pay and StoreKit, plus third-party gateways where permitted
- System integrations: push notifications, widgets, Live Activities, App Intents and Siri shortcuts, deep links and universal links
- Sensors and hardware: camera, barcode scanning, NFC, Bluetooth Low Energy, location, and ARKit where relevant
- Data and sync: Core Data, SwiftData, CloudKit, and secure back-end sync
- iPad: multitasking, adaptive layouts, keyboard and pointer support
- Accessibility: VoiceOver, Dynamic Type, contrast, and touch-target standards
- Localization: multi-language, right-to-left, and regional formats
Process
How does the iOS app development process work?
- 01
Discovery and Planning
business goals, target users, supported iPhone and iPad models, App Store markets, integrations, and success metrics. Output: scope, device and OS matrix, and priorities.
- 02
UX and Design
user flows, wireframes, prototypes, and UI design following Apple's HIG.
- 03
Architecture
modular Swift architecture, API design, security model, and data strategy.
- 04
Agile Development
sprint-based builds with demos on real devices via TestFlight.
- 05
Testing and QA
XCTest unit and UI tests, integration checks, real-device runs, and performance, security, and VoiceOver accessibility testing.
- 06
App Store Release
builds, listing, privacy disclosures, review notes, and staged rollout.
- 07
Support and Annual Upkeep
monitoring, bug fixes, new-OS compatibility, SDK upgrades, and new features.
Security and privacy
How does Xcrino secure iOS apps and protect user data?
- App security: Keychain storage, encrypted communication, certificate handling, authentication best practices, and dependency review
- Data protection: we collect only the data the app needs, keep App Privacy labels accurate, and design for GDPR and similar rules in the markets you serve
- AI data handling: before any AI feature is built, we agree with you which providers may process user data, and we keep sensitive processing on the device where possible
- Ownership: your contract defines who owns the source code, design files, and App Store Connect assets, and we recommend publishing under your own Apple Developer account
Technology
Which technologies does Xcrino use for iOS development?
| Area | Technologies |
|---|---|
| Language and UI | Technologies: Swift, SwiftUI, UIKit, Combine or async/await, Xcode |
| Architecture | Technologies: MVVM, Clean Architecture, modular design, dependency injection |
| Local data | Technologies: Core Data, SwiftData, Realm, Keychain |
| Networking and back end | Technologies: URLSession, REST, GraphQL, Node.js, Python, .NET, Java, Laravel |
| Cloud and services | Technologies: CloudKit, Firebase, AWS, Microsoft Azure, Google Cloud |
| Testing and CI/CD | Technologies: XCTest, XCUITest, TestFlight, Fastlane, GitHub Actions |
| AI and data | Technologies: Core ML, Vision, LLM APIs, on-device ML |
We confirm exact tools and versions per project, based on your iOS versions, device range, and team.
Cost and timeline
How Much Does iOS App Development Cost?
These factors decide what an iOS app costs:
- Scope and features: the number of user roles and screens, Apple Pay or in-app purchases, real-time features, offline mode, and AI
- Design depth: custom UI, animation, and the number of screens
- Device range: iPhone only, or iPad, Apple Watch, and other platforms
- Integrations: connections to ERP, CRM, payment gateways, and other third-party APIs
- Back end and scale: expected users, data volume, and response-time targets
- Security and compliance: regulated sectors such as health and finance add reviews and documentation
- Post-launch needs: monitoring, yearly SDK upgrades, new-OS support, and new features
How scope changes an iOS budget:
- MVP or simple app: iPhone only, a small set of core screens, and a simple back end, delivered in weeks
- Mid-complexity business app: iPhone and iPad layouts, several user roles, payments, and integrations, delivered over a few months
- Enterprise or AI-powered app: managed-device rollout, several integrations, security review, and phased App Store or private releases
Budget beyond launch: iOS apps need yearly upkeep for Apple's SDK deadlines and OS releases. A free discovery call ends with a written estimate that lists our assumptions and the risks we see.
Choosing a partner
What should you ask an iOS app development company?
- Can you show published iOS apps with App Store links and relevant case studies?
- Do you build new projects in Swift and SwiftUI, and why?
- How do you handle Apple's yearly SDK and App Review requirements?
- Who owns the source code, design files, and Apple Developer account?
- How do you test across iPhone and iPad models and iOS versions?
- How do you handle Keychain storage, privacy labels, and user data?
- Who handles new iOS releases, bug fixes, and support after launch?
Fit check
Is a native iOS app the right choice for you?
A good fit when:
your audience is mainly on iPhone or iPad, your teams use managed Apple devices, or the app relies on Apple features such as Apple Pay, widgets, or HealthKit.
Not the best fit when:
you need to reach Android users at launch on a limited budget, where a cross-platform build is usually more efficient, or when a web app would do the job.
Terms explained
iOS development terms explained
- Swift
- Apple's programming language for iPhone, iPad, Apple Watch, and Mac apps.
- SwiftUI
- Apple's framework for building app screens in Swift code, the default for most new apps.
- TestFlight
- Apple's service for sending test builds to testers before public release.
- App Store Connect
- Apple's dashboard for uploading builds, managing listings, and submitting apps for review.
- Deployment target
- the oldest iOS version an app supports, chosen from the devices your users have.
Get a quote
Tell us what you want to build
Share the problem, the systems involved and your timeline. We reply with next steps and, where it fits, a fixed-price first phase.
Reach us
New Delhi, India
FAQ
iOS app development: questions answered
What are iOS app development services?
iOS app development services cover the design, engineering, testing, App Store release, and maintenance of apps for iPhone, iPad, and other Apple platforms. They suit businesses that want to reach iOS users or equip teams with Apple devices.
What languages and tools do you use for iOS development?
We build new apps in Swift, usually with SwiftUI, using Xcode, and use UIKit where it fits. We can also maintain and modernize Objective-C code.
Should I use SwiftUI or UIKit?
SwiftUI suits most new apps. UIKit remains useful for mature or specialized components and older codebases. We often combine them and migrate in stages. We recommend an approach based on your minimum iOS version and features.
Should I build a native iOS app or a cross-platform app?
Choose native iOS when you need top performance, deep Apple features, or an iOS-first audience. Flutter or React Native suits a faster launch on both iPhone and Android. We make a recommendation once we understand your features and audience.
How much does it cost to develop an iOS app?
The main cost drivers are scope, the number of screens, iPhone-only or iPhone plus iPad support, integrations, security requirements, and any AI features. You get a written estimate after a free discovery call.
How long does it take to build an iOS app?
Timelines vary by scope. An iPhone MVP takes weeks, a business app with integrations a few months, and an enterprise rollout runs in phases. Allow time for App Review before launch, and we set firm dates during discovery.
Do you handle App Store submission and approval?
Yes. We prepare builds, listings, privacy disclosures, and review notes, manage submission, and respond to any App Review feedback. Approval is Apple's decision, so we design to the guidelines from day one rather than promise outcomes.
What happens if my app isn't built with the latest Apple SDK?
Apple requires uploads to use a recent Xcode and SDK, and the minimum rises each spring. Builds that don't meet it can't be uploaded. We handle toolchain and SDK upgrades as part of maintenance.
Can you build iPad, Apple Watch, or Apple TV apps?
Yes. We build adaptive iPad apps, and Apple Watch or Apple TV apps can be scoped as a separate phase when your product needs them.
Can an iOS app connect to our ERP, CRM, or existing systems?
Yes. We build APIs and integrations that connect iOS apps to ERP, CRM, payment, and third-party systems, with secure authentication and role-based access.
Can you add AI features to an iOS app?
Yes. We add assistants, image and text recognition, recommendations, and automation to iPhone and iPad apps, choosing between on-device and cloud models based on privacy, latency, and cost.
Can you build offline-capable iOS apps?
Yes. We build iPhone and iPad apps that keep working without a connection, store data locally, and sync safely once the device is back online, which suits field and on-site teams.
Can you distribute an app privately to our employees?
Yes. Apple provides options for private and enterprise distribution. We help you choose the right route, set up the necessary accounts, and integrate with your device management.
Can you take over or modernize an existing iOS app?
Yes. We audit the codebase, then refactor, migrate from Objective-C or UIKit, upgrade the SDK, and fix performance and security issues.
Who owns the source code and the Apple Developer account?
Your contract sets out ownership of the source code, design files, and App Store Connect assets before work starts. We recommend publishing the app under your own Apple Developer account.
What support do you provide after an iOS app launches?
We provide monitoring, bug fixes, new-OS compatibility, SDK upgrades, performance optimization, and new feature development.
Tell Us About Your iOS App
Tell us who the app is for, which iPhone and iPad models it must support, and the systems it needs to connect to. We'll suggest an approach, a roadmap, and a realistic estimate, and tell you if a simpler route would do the job.
Company details
Xcrino Business Solutions
iOS App Development • Swift • SwiftUI • iPhone and iPad Apps • Enterprise iOS Apps • AI-Powered Apps • App Store Compliance
New Delhi, India | Serving Clients Worldwide
E-523, Top Floor, Sector 7, Dwarka, New Delhi 110075 • phone and email as shown on the Contact page