iOS App Development with Krasamo

by Mar 11, 2022#iOS

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Create innovative apps with iOS 15 for the latest advancements in mobile user experience, including virtual reality and machine learning capabilities.

Krasamo is an innovative mobile app development company with more than 10 years of experience in working with iPhone app development.

iOS App Development
Programming Languages


Swift is an open-source general-purpose programming language that has been growing fast since it was announced in 2014. It is the official language for iOS and is designed to be easy, fast, and safe. Swift is known for predictable and consistent performance, offering modern features and concise syntax.

Together with Xcode, Swift makes programming powerful. It is hosted under the Apache 2.0 license, and its source code is hosted on Github. It is used on all Apple platforms and integrates with Xcode developer tools. You can migrate Objective-C into Swift. You can start learning by visiting the Swift Playgrounds.


Objective-C was Apple’s primary programming language until Swift succeeded it in 2014. Objective-C is a superset of the C, general purpose with object-oriented capabilities. Objective-C files can coexist with Swift in a project. You can Import APIs, use runtime features, or migrate code into Swift.

Krasamo can modernize your Objective-C codebase and migrate to Swift by replacing pieces gradually and avoiding rewriting the entire code at once. Migrate code by classes and replace them with Swift files, making sure to understand how Swift translates Objective-C features. Also, keep a close eye on the native Swift syntax, customize interactions with Objective-C APIs (macros, selectors, paths), add nullability to control declarations, language interoperability, handling methods, objects, types, functions, etc.

iOS 15 SDK Key Technologies


SharePlay for Developers

Integrate app into Facetime and share media to other spaces and playback at the same time on the other devices. If the other users don’t have your app installed, SharePlay will guide them to download it. Also allow to run apps on other Apple platforms as a Universal Purchase.


Focus and Notifications

Communicate important information to your users by generating user-facing notifications from your app (local) or from a managed server (remote). Local notifications triggers delivery by the apps for certain triggered conditions. For remote notifications use Apple push notification service (APN).



Create Augmented reality (AR) experiences for specific cities and landmark locations anchored to geographic coordinates. Also, supporting improved motion tracking and face tracking features extended to the front-facing camera. Other AR features enable placing virtual objects in their physical surroundings and detection features.



Develop AR-rich apps that blend virtual content with the real world with many object elements, better effects, more functionality, and better control of the AR scenario and assets. In addition, detection features allow virtual objects interactions with physical surroundings and simulations.


Create ML

Using on-device input or behavior for training and creating Machine Learning models. Use an app interface with a Mac and connect external graphics processing units (GPU)to improve performance. Choose from several model types: image, text, video, sound, motion, and tabular. Create ML is available as a Swift framework.



GameKit is a framework for developing and implementing features once Game Center (Apple game service) enables players that have been identified and authenticated to interact in real-time with multiple players and offers many features to enhance the user experience as leaderboards, achievements, friend lists, etc.


Game Controller

Game Controller is a framework that adds game controller capabilities in Xcode to support users, including products such as Xbox, DualShock 4, and DualSense. It also gives support to the keyboard, mouse, and Siri. Build code to process input and access it by supported profiles, register physical objects and display virtual controllers.


StoreKit 2

StoreKit 2 is a framework that facilitates in-app purchases across Apple platforms using the App Store account using an advanced Swift-based API. StoreKit 2 ensures timely information of transactions, subscription status, offers, and more. Secure and reliable with integration with Touch ID and Face ID.


Safari Web Extensions

Create Safari web extensions for customizing and enhancing browser functionality using HTML, CSS, and JavaScript. Use Xcode to repackage extensions to work with other browsers and provide a secure distribution through the App Store and usage model by implementing them as iOS or macOS.


ShazamKit is a framework for audio recognition that finds an audio match using an acoustic signature that captures the audio signal and generates and stores a reference signature with metadata. A query signature matches the catalog of reference signatures captured, creating functionality for music recognition and virtual learning products.


MusicKit framework for integrating Apple music into your app or website. Your app can fetch music from the Apple Music catalog using a request feature, allowing filters to load items, work with music attributes and notification messages, set value types, and playback support.



The HealthKit framework allows you to access and share data with your app, acting as a central repository of data. Your app can use HealthKit features and focus on custom features, giving users the freedom to pick any device and centralize information from various apps.



HomeKit is a framework that allows to use your app to connect smart home automation accessories. HomeKit provides a user-focused interface to coordinate and control accessories. Enabling HomeKit in your app provides seamless connectivity with Matter accessories and third-party home hubs.



CloudKit is a framework that stores app and user data in iCloud and synchronizes across devices and platforms. Apps are organized in containers that include databases and siloed app data, information separated by access type or function, and encryption and privacy protection.



EventKit framework lets you add calendar and reminders to your app, set up alarms, recurring events, and notifications integrated with the user’s events. Your app accesses the users’ calendar events and supports the creation of new events.

Machine Learning Models
in iOS App Development

Create ML

Create ML is a Swift framework for building and training ML models with the purpose of integrating them into your apps. A model can be created and trained using Create ML in Xcode or it can be created with other libraries and then converted to Core ML format (models with an .mlmodel file extension).


Using Core ML

Your new iOS App can train or improve a Machine Learning model from the data on the user’s device. A model is trained and retrained—or updated—with data from the device and is then used for making predictions. Common data for implementing ML models with Core ML are voice, text, video, and audio files.

Core ML API connects your app and the Machine Learning models inside the device, optimizing responsiveness and keeping data private. Models must be encrypted at compile time.

There are repositories of open-source trained models in frameworks such as TensorFlow and Pytorch. Training libraries and third-party models can be converted to Core ML using Core ML Tools.

A team of experienced Krasamo developers can build and run a Core ML App and integrate a model into your App, as well as create custom workflows or advance use cases.

Apple Development tools

Xcode 13 (IDE)

Xcode is Apple’s Integrated Development Environment (IDE) to build and test iOS apps in macOS, iOS, iPadOS, watchOS, and tvOS platforms that provide a unified SDK and continuous integration and delivery (CI/CD) system. Xcode manages workflow and pull requests and supports integration with code platform solutions such as GitHub, Bitbucket, and Gitlab for version control features.

Xcode includes all of the tools, frameworks, and compilers required to develop your desired mobile application.


SwiftUI is a framework used to build an app interface’s navigation, structure, layout, and behavior. SwiftUI provides content for display, with viewing and previewing protocols for content and layout, customize and combine views, image views, detailed views, navigation capabilities, buttons, animations, widgets, effects, UI controls, notifications, etc. SwiftUI works with existing UI frameworks on all Apple Platforms.

iOS Software Development Kit (SDK)—iOS 15 SDK

Xcode is Apple’s Integrated Development Environment (IDE) to build and test iOS apps in macOS, iOS, iPadOS, watchOS, and tvOS platforms that provide a unified SDK and continuous integration and delivery (CI/CD) system. Xcode manages workflow and pull requests and supports integration with code platform solutions such as GitHub, Bitbucket, and Gitlab for version control features.

Xcode includes all of the tools, frameworks, and compilers required to develop your desired mobile application.

Xcode Cloud

Xcode Cloud is built into Xcode, which is used to build and deliver apps in the cloud with a built-in workflow as well as cloud-based tools to reduce build infrastructure. Easy to set up, it is currently in Beta mode. Features include automated workflows and instant results, as well as reports shown on Xcode instantly after a build or test, which allows parallel testing. It also works with TestFlight and provides high-security features.

iOS Simulator App

Included in Xcode, the simulator is the best way to interact with the app in a manner similar to real time. It is beneficial to test the app on different devices and different versions of the operating system.

Test Flight

Test Flight is used with a beta build of the app to perform testing with real users and get valuable feedback. It’s used for testing notifications, storage, making API calls, etc. Also, performing cloud testing provides a good understanding of how users are interacting with the app.

About Us: Krasamo is a mobile app development company focused on the Internet-of-Things and Digital Transformation.

Click here to learn more about our mobile development services.


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