Expertise / Applications
iOS mobile app development services for connected products
Indeema designs, builds, tests and supports native iOS applications for iPhone and iPad, from the first consultation to App Store release and updates. Many of them are companion apps for connected products, built in Swift and SwiftUI against the real device, its firmware and the cloud behind it.
Overview
Native iOS development for iPhone and iPad
iOS app development is the process of building software for Apple devices. Indeema’s iOS team creates custom native applications for iPhone and iPad, written in Swift with SwiftUI or UIKit, and helps you build an engaging, user-friendly app whatever the complexity of the project.
A large part of that work is companion apps for connected products: apps that pair with a device over Bluetooth Low Energy or Wi-Fi, show its state, change its settings and receive alerts. Those apps are designed together with the firmware and the cloud back end, because most problems users notice, such as a lost connection, a stale reading or a failed update, start at the boundary between them.
Services
Our iOS app development services
Seven services, from deciding whether iOS is the right platform to keeping the app compatible with every new iOS release. Engage us for one of them or for the whole lifecycle.
iOS app development consulting
We help you determine whether iOS is the right fit for your app and, if so, which architecture and technology stack best meet the project’s needs: SwiftUI or UIKit, which Apple frameworks it depends on, and how it will talk to your device and back end.
Solution ideation
Identifying your target audience, their pain points and the ways the app can solve them, so the first release concentrates on the features people will actually use.
Mobile UX/UI design
Interfaces that combine the features you need with what users expect from the Apple ecosystem: platform navigation and controls, clear permission prompts and screens that show device state and connection quality honestly.
UI/UX design for connected systemsiOS app development for IoT
Native iOS apps for connected products: Bluetooth pairing and control, Wi-Fi provisioning, live and historical readings, alerts and firmware updates started from the phone.
IoT app developmentiOS mobile app development
Robust applications for iPhone and iPad, built in Swift. When a product needs it, the same code base can extend to Apple Watch, Mac or widgets and Live Activities.
Mobile app testing
A special focus on security and performance: manual and automated tests, checks of data storage and network security, and testing on real devices across the iOS versions you support, including the device-connection and update flows.
Maintenance and support
Our iOS service does not end at launch. We keep the app running and compatible with each new iOS version, update dependencies and add features as the product evolves.
Maintenance and product support
Key benefits
Key benefits of custom iOS app development
Security by design
Sandboxing, the Keychain, app transport security and explicit permission prompts give a strong base for apps that handle sensitive personal or enterprise data.
A narrower device range to test
Fewer device models and fast iOS adoption keep the test matrix smaller than on Android, which shortens test cycles.
A loyal, quality-conscious audience
Every app passes App Store review before release. Users expect polished behavior, and the review process is a quality gate worth planning for from the start.
Room to grow on Apple platforms
A well-structured Swift code base can grow with the business: new features, iPad layouts, widgets, Live Activities or an Apple Watch companion when the product needs them.
Native iOS or cross-platform
When should an iOS app be native?
Native Swift development gives direct access to every Apple framework the day it ships. A shared code base saves duplicated work when the app must run on iOS and Android with the same features. The device link often decides.
Platform features
Native iOS (Swift): Every Apple framework directly, including new ones on release day: widgets, Live Activities, background modes
Cross-platform: Through plugins or custom native modules; new APIs may need a bridge first
Bluetooth and background work
Native iOS (Swift): Core Bluetooth and background modes with full control over reconnection and state restoration
Cross-platform: Usually a plugin or native module per platform; behavior must be tested on each
User interface
Native iOS (Swift): SwiftUI or UIKit components that follow Apple conventions
Cross-platform: One design adapted to iOS and Android conventions
Team and code base
Native iOS (Swift): A dedicated iOS code base; Android is a separate project
Cross-platform: One shared code base for both platforms, plus native modules
Best fit
Native iOS (Swift): iOS-first products, deep Apple-platform features, demanding media or real-time work
Cross-platform: The same features on iOS and Android at once, with limited device-specific code
Need both platforms? Read cross-platform app development for the shared-code-base option and Android app development for the native Android side.
Technologies
iOS technologies we use
The stack follows the product. We recommend frameworks after the consulting stage, and keep older Objective-C and UIKit code working while it is modernized.
Swift and SwiftUI
Language and UIThe main language and declarative UI framework for new iOS apps, including iOS features such as Live Activities with interactive buttons.
In practice: Mobile and web apps for learning marching-band drill on the field · Rebuilding a Bluetooth companion app for RV lithium batteries
Objective-C and UIKit
Existing appsFor apps that already use them: maintained, extended and migrated to Swift step by step.
In practice: Redesigning the companion app for a Wi-Fi shot-recording camera
Core Bluetooth
Device connectionBluetooth Low Energy discovery, pairing, data exchange and reconnection with your hardware, kept in its own layer away from the interface.
In practice: Mobile and web apps for learning marching-band drill on the field · Rebuilding a Bluetooth companion app for RV lithium batteries
AVFoundation, AVKit and Metal
Camera and mediaCapture, playback and camera controls such as focus, exposure and zoom for media-heavy apps.
In practice: An iPhone camera app built for manual creative control
Keychain and app security
SecuritySecure storage of credentials and tokens, with app transport security for connections to the back end.
In practice: Mobile and web apps for learning marching-band drill on the field
RxSwift and Combine
Reactive stateReactive streams for live device data and interface state: RxSwift in existing code, Apple’s Combine as the platform option for new code.
In practice: An iPhone camera app built for manual creative control
Connected products
Where an iOS app fits in a connected product
In a connected product the iOS app is one layer of a single system: device, firmware, connectivity, cloud and app. These are the decisions to settle before scope is fixed.
Define what the app does with the device
Write down the connection method, the data exchanged and the actions a user can trigger. Core Bluetooth, local network access, HealthKit-style data sharing or camera use each carry their own permission and lifecycle constraints on iOS.
Design for the iOS lifecycle
Background time is limited. Decide which tasks must continue when the app is not in the foreground, which can wait, and how the app restores its connection and state when the user returns.
Treat permissions as part of the experience
Location, Bluetooth, notifications and local-network prompts appear at specific moments and can be declined. Plan the explanation shown before each prompt and the behavior when access is refused.
Prepare for review and release
App Store review examines privacy disclosures, permissions and account flows. Assemble the data-handling description, test accounts and hardware instructions reviewers will need, and decide how staged releases and phased rollouts will be managed.
Keep the app and firmware in step
Version the protocol between app and device and decide what happens when the two are out of date. Define how new app versions are tested against supported firmware releases.
The rest of the stack
- Applications & Experience The whole application layer of a connected product: mobile, web and design.
- Embedded & Firmware The device side of the app-to-device contract.
- Cloud & Connected Systems The services and APIs the app talks to.
- IoT Product Engineering Device, cloud and applications as one scope.
Why Indeema
Why Indeema Software for iOS development
iOS platform expertise
Our iOS engineers build native apps in Swift and SwiftUI and maintain older UIKit and Objective-C code, including Bluetooth, camera and background features.
Comprehensive iOS development
End-to-end iOS application development, from consulting and planning to delivery and maintenance, with firmware and cloud engineers in the same team when the app talks to a device.
Client-centered approach
The work starts from your business needs and objectives, and trade-offs such as scope for the first release are agreed with you.
Clear communication
We keep you in the loop with regular, detailed reports and are available to answer questions throughout the project.
Case studies
iOS apps Indeema has engineered
Four native iOS projects described on our case pages. Client names and figures are not shown here.
Swift · SwiftUI
Drill app for marching bands
Native iOS and Android apps for studying and rehearsing drills, with a web admin panel. The iOS app moved to SwiftUI, which enabled iOS 17 Live Activities with interactive buttons; the stack includes Core Bluetooth and the Keychain.
Mobile and web apps for learning marching-band drill on the field
Swift · BLE
Companion app for RV batteries
A new native app written from scratch in Swift (with a Kotlin Android version) that reads the battery management system over Bluetooth LE, supports current iOS versions and keeps working with batteries already in the field.
Rebuilding a Bluetooth companion app for RV lithium batteries
Swift · AVFoundation
iPhone camera app
An iOS camera application with focus, exposure, zoom, presets and capture workflows, built on Apple’s media and camera frameworks.
An iPhone camera app built for manual creative control
Swift · Objective-C
Wi-Fi camera companion app
Redesigned iOS and Android apps for connecting to a camera wirelessly, playing back clips straight away and adjusting camera settings, built natively.
Redesigning the companion app for a Wi-Fi shot-recording camera
Related engineering insights
- How to create an IoT app Device connection, architecture and security for an app that controls hardware.
FAQ
iOS app development questions
What is iOS app development?
iOS app development is the process of building software for Apple devices. Native iOS apps are written in Swift, usually with SwiftUI or UIKit, and run on iPhone and iPad; the same platform tools also target Apple Watch, Mac and Apple TV.
How do you make a custom app for iPhone?
Like any digital product, it starts with planning: goals, users and scope. Designers then design the app, engineers build and test it, and it is submitted for App Store review. After release the app needs continuous maintenance for as long as it is in use.
Is the development process for iOS and Android different?
The process is the same, but the tools differ. iOS apps are mostly written in Swift with SwiftUI or UIKit; Android apps in Kotlin, often with Jetpack Compose. Each platform also has its own rules for background work, permissions, Bluetooth and store review, which is why device features are tested on both.
Which is better: iOS or Android?
Both platforms have pros and cons for a business, and the answer depends on your audience, budget and product needs. Indeema provides both iOS and Android app development, and cross-platform development when one code base fits, so we can help you choose.
Can we expect regular updates on the project’s progress from you?
Yes. We work transparently and closely with you throughout the project lifecycle, with regular reports, demos of working builds and direct access to the team.
Can you assist us with uploading our iOS app to App Store?
Yes. Our iOS service includes publishing your app on the App Store: preparing the listing and privacy details, TestFlight beta builds, and the test accounts and hardware instructions App Store reviewers need for an app that works with a device.
Which Apple devices do you build apps for?
Most of the apps on our case pages are for iPhone. The same Swift code base can support iPad layouts, and Apple Watch, Mac or Apple TV targets when the product needs them; we agree the targets during consulting.
Can an iOS app connect to our device over Bluetooth and update its firmware?
Yes. We use Core Bluetooth for discovery, pairing, data exchange and reconnection, and design firmware updates from the phone together with the firmware team, including recovery after an interrupted transfer. Our case pages include native iOS apps that work with hardware over Bluetooth LE.
Do you develop iPad apps?
Yes. iPad apps use the same Swift and SwiftUI tools as iPhone apps, with layouts designed for the larger screen, split view and keyboard or pointer input. An app can support both from one iOS code base.
Can you take over or modernize an existing iOS app?
Yes. We start with a code and architecture review, then maintain, refactor or rebuild it. We have moved an iOS app to SwiftUI and rebuilt a Bluetooth companion app in Swift while keeping it compatible with devices already in use.
Should we build a native iOS app or a cross-platform app?
Choose native iOS when the product depends on Apple-specific features, demanding media or real-time work, or targets iPhone first. Choose cross-platform when iOS and Android need the same features at once and device-specific code is limited. We recommend one after reviewing what the app must do with the device.
Tell us about your project
Start with what the app must do for your users and your device
A first conversation covers the platform choice, the device connection and the release plan, not a technology pitch.
Bring us
- Your app idea, or the existing app and its code
- The device and how it connects, if there is one
- Who will use the app, and on which devices
- The part you want Indeema to own
Related services
- Android app development When the same product needs a native Android app.
- Cross-platform app development When one code base should serve iOS and Android.
- MVP development When the first release has to prove the product.
- UI/UX design for connected systems When the interface has to explain device state and live data.