ios vs React native
React Native: based on React.js, which is written in JavaScript. This is a major advantage when it comes to the fact that JavaScript is such an extensive and popular language that it’s very hard to find a programmer who hasn’t used it at some point in their career. ios : First, it is easier to improve existing code. Second, it helps us avoid several types of mistakes. Third, it makes code much more readable
react native:React Native provides a module that detects the platform in which the app is running. You can use the detection logic to implement platform-specific code. Use this option when only small parts of a component are platform-specific. ios :Swift’s syntax and language constructions exclude the several types of mistakes possible in Objective-C. This stability means that there will be fewer crashes and cases of problematic behavior.
- Readability : Swift drops many legacy conventions, such as semicolons to end lines or parentheses that surround conditional expressions inside if/else statements.
- Maintenance : It’s not possible for Objective-C to evolve without C evolving first. Contrarily, Swift does not have these dependencies, which makes it a lot easier to maintain.
- Speed : Swift also provides various speed advantages during development, in turn, saving on costs. A complex object sort, for example, will run 3.9x faster than an implementation of the same algorithm in Python. That’s also better than Objective-C, which is 2.8x faster than the Python version.
- Swift Supports Dynamic Libraries : This feature allows current Swift apps to link against newer versions of the Swift language as it evolves over time.
- Open-Source : Open-sourcing Swift means that Apple will be able to get feedback from the community to make improvements on a consistent basis as independent developers contribute to the success of the language.
- React Native helps in building cross platform mobile apps.
- Saves time and cost to build mobile apps on multiple platforms.
- Building blocks which are used in iOS and Android apps are also used while creating React Native based apps which means that React Native is a mobile framework that compiles app components for native mobile applications in JavaScript.
make an iOS-only or Android-only app -- native ios or android small team with limited time and resources, and need to make an app for both platforms -- React Native. highly complex app -- native ios or android maintain the app over a long period of time -- native ios or android have a strong React / Web development -- React Native
https://developer.apple.com/library/archive/referencelibrary/GettingStarted/DevelopiOSAppsSwift/