Products that use Apple's iPhone operating system, including the iPhone, iPod touch and iPad. It specifically excludes the Mac.

• iOS uses a multi-touch UI to control the device, such as swiping your finger on the screen to progress to the next page or pressing your fingertips to expand in and out.
• Developers can generate money by producing apps for the iPhone and iPad as a result of this
• You need to have a fundamental understanding of software coding terminologies before starting this lesson.

React Native (also known as RN) is a popular JavaScript-based mobile app framework that allows you to build natively-rendered mobile apps for iOS and Android. The framework lets you create an application for various platforms by using the same codebase.

• It is a framework developed by Facebook for creating native-style apps for iOS & Android under one common language, JavaScript.
• The biggest advantage of React Native is that developers don't need to create separate codes for different platforms (Android and iOS).
• It is used in both frontend and backend, this means it can be used to develop full-stack web applications
• React is a JavaScript library used in web development to build interactive elements on website User Interfaces (UI) based on UI components.

.NET Core is a new version of .NET Framework, which is a free, open-source, general-purpose development platform maintained by Microsoft. It is a cross-platform framework that runs on Windows, macOS, and Linux operating systems.

• Performance
• Modern & innovative
• Open Sourced

The Features of the Android operating system include that the user can change languages dialects. The user may connect in many ways using WiFi, Bluetooth, etc. Multiple apps can be used at a single time. It safeguards user data and requests consent before accessing it.

• Android is type of robot and most popular Operating system for smart phones by Google.
• A mobile robot usually with a human form.
• Android software contains an open-source Linux Kernel