Flutter vs Swift: Which One to Choose?


May 8, 2023

There is no looking back at the expansion of the global app market. The global mobile application market size was valued at USD 206.85 billion in 2022 and is expected to grow at a compound annual growth rate (CAGR) of 13.8% from 2023 to 2030.

With the horizons of mobile applications expanding, the market of iOS app development is sure to keep spreading, far and wide. Here comes the time to analyze popular iOS development tools and as we talk about that, the two names often compared are Flutter vs Swift.

Both frameworks have a quotient of their own loyal clients and have been proving their popularity worth since a long time now. And hence, when it comes to comparing the world of Flutter app development and Swift app development, it is a perplexing equation.

Through this article, we will peep into the two popular iOS programming languages – Swift vs Flutter, and understand their intricacies. This will help you in deciding which one to choose and why, for your iOS developmental objectives.

What is Flutter App Development?

Flutter is an open-source framework by Google for building beautiful, natively compiled, multi-platform applications from a single codebase. As a free and cross-platform UI toolkit, it assists in reusing code across different operating systems. It is based on Dart, yet other object-oriented languages from Google.

Flutter lets you build two versions of the application simultaneously. It is more like a platform for creating applications that consist of Dart as a programming language and other widgets. Developers can write code faster with Flutter on multiple platforms. It creates a type-safe framework with features like layout rendering, high performance, etc.

Flutter app development services help in the seamless creation of cross-platform applications through a unified codebase. It is considered ideal for novices and experienced programmers both, because of its variety of Flutter widgets. It offers great productivity and helps in fastening performance. It is considered an ideal platform for creating intuitive applications.

Key Features of Flutter

  • Enriched widgets
  • Single codebase
  • Hot reload feature
  • Open-source and cross-platform
  • Google Firebase support

Advantages of Flutter

  • Supports old devices
  • High speed and performance
  • Wider reach with fast time to market
  • Apps for multiple platforms with the least effort
  • Strong language and robust tools
  • Extension and documentation support
  • Clean syntax and development approach
  • Faster learning curve
  • Easy integration with editors
  • Fast development of interfaces

Also Read: Flutter vs Kotlin: A Comprehensive Comparison Guide

What is Swift App Development?

Swift is a powerful and intuitive programming language for iOS, iPadOS, macOS, tvOS, and watchOS. Writing Swift code is interactive and fun, the syntax is concise yet expressive, and Swift includes modern features developers love. It empowers developers to create their own iOS-powered devices.

It is a modern, secure, and high-performance language that is easy to write apps and fit for native iOS app development. Its fast and intuitive programming style with easy maintainability and readability makes it a developer’s delight. It has an expressive syntax with modernized features.

The entire ecosystem of Swift app development services and its tools help create faster apps with robust and communicative development capabilities. It offers intensive documentation that helps novices learn faster. The major environment that is needed to create native apps with Swift is Xcode.

Key Features of Swift

  • Simplistic syntax
  • Compatible with Objective-C
  • Multiple return values
  • Functional programming patterns
  • Package manager

Advantages of Swift

  • Dynamic library support
  • Extensive documentation
  • Open source community
  • Good tooling support
  • Easy code readability
  • High performance and speed
  • Supported by multiple devices
  • Exceptional user experience
  • Offers powerful functionalities
  • Dynamic library support
Flutter vs Swift: Organizations Using Them

Companies Using Flutter

Google Ads, Philips Hue, Realtor.com, Alibaba, Groupon, Square, eBay, Reflectly, Hamilton Musical, Tencent, Google Assistant, Cryptomaniac, SpaceX Go and many more.

Companies Using Swift

Asana, Lyft, Slack, Airbnb, Facebook, WhatsApp, Uber, Firefox for iOS, LinkedIn, SlideShare, Eventbrite, Robinhood, DoorDash, Twitter, Firefox for iOS, and many more.

As we observe the intricacies of Flutter app development services and Swift app development services, there are certain similarities as mentioned below, and certain differences that make them distinct in their own good ways. Let us have a look at them:

Also Read: Swift vs Objective C: Assessing Popular iOS Programming Languages

Flutter vs Swift: The Similarities

  • Static language type
  • Open source and free to use
  • Object-oriented with stability
  • Real-time changes are possible
  • High-performance tools
  • Good community support
  • High-quality documentation
  • Easy access to skilled resources


Flutter vs Swift: Which One is Better for iOS Development?

Parameters Flutter Swift
Overview Open source, UI, cross-platform software development kit High-level, multi-paradigm compiled iOS programming language
Release Year 2017 2014
Developed By Google Apple
Cross Platform Compatibility Yes No
Native Development No  Yes
IDE Involved Visual Code, Android Studio, IntelliJ Xcode
UI Builders Flutter UI Toolkit Swift UI
Accessibility Supports accessibility for external tools, Flutter needs development to offer better applications for people with disabilities about accessibility support Inbuilt accessibility support for iOS apps, programmers offer reliable availability data to each UI component in the iOS application with the UI Accessibility method
Performance Highly performant because of support from the Dart properties Highly performant because it is essential for iOS apps
Ease of Use Easy to use because of the simplistic Dart language Easy to use because of intensive documentation
Application Size The file size is around 52 MB, larger than Swift apps The file size is around 25 MB, lighter than Flutter apps
Testing Support Inbuilt testing support Native testing tools like XCTest
Development Time Performs consistently after cleaning and development time Performs consistently throughout the cleaning and development time
Integration With Nevercode tool – automated setup and configuration, support for multiple platforms Jenkins tool – easy installation and easy configuration, Changeset support
Learning Curve Simple learning curve if exposure to Java, and Kotlin is there. Good documentation to support. Complex learning curve if not exposed to iOS app development.
Architecture Flutter’s architecture is based on three major components – engine, platform, and framework Swift’s architecture is based on Ruby, CLU, C#, Python, and other projects
Costs Involved Less expensive More expensive
Onboarding Process Flutter needs macOS + Xcode + Flutter Binary, an easy onboarding process Swift needs macOS + Xcode, a little complex onboarding process with a code editor, simulator etc.
Reloading Real-time changes can be made Hot Reload for real-time changes
Application Size Large sized apps Flexible sized apps
GitHub Stars 116k 55.4k
Forks 16.5k 8.9k
Time to Market Flutter is fast after the initial clean builds, slow in the start Swift is speed and agile, as per its name
Ecosystem Large ecosystem of plugins and third-party packages Large ecosystem of tools libraries and frameworks
Reusability Easily reusable widgets and components resulting in faster development and easy maintenance Easily reusable code across Apple platforms, APIs and frameworks enabling effective development
User Interfaces Customizable and responsive user interfaces, with pre-built UI widgets and components iOS native user experience with customizable and responsive UI kit and components
App Profiling Helps developers to profile iOS apps through IDE or command line Helps developers to profile iOS apps in Xcode by instruments

What to Use When? Flutter Vs Swift

Swift app development can be used when

  • A high-functioning application needs to be created
  • There is a complicated architecture with higher expectations
  • Users need a perfect native iOS app with different features

Flutter app development can be used when

  • There is a need to develop an MVP product or prototype
  • Developers need to explore popular marketplaces
  • There is a need to maintain a singular codebase
Swift vs Flutter: As We Wind Up

As you compare the two tech stalwarts – Swift Vs Flutter, there is no ‘one size that fits all’ solution. There are many factors that could influence the section of the language. Here are they – tools accessibility, project deadlines, skilled resources, budget and timelines, API levels, smooth integration, accessibility to flexibility, speed, and performance.

Both Swift and Flutter are competent in creating feature-rich iOS apps. But here, the major difference is- Swift is constructed for initial native iOS apps and Flutter is designed for creating hybrid apps.

As a renowned Flutter app development company we offer widespread Flutter app development services for building progressive, highly functional applications for reforming your business practices.

Hire our Flutter Developers, who are competent at transforming your requirements into a rational business-ready application, with an attractive and high-quality user interface.

As a popular Swift app development company, we build convincing and secure apps for servers, desktops, phones, and other devices. Leveraging Swift app development services, our focus is on enterprises and smaller businesses across the industry domains.

Hire our qualified Swift developers to attain the business aim through powerful and quality software solutions that are secure, scalable, and superior.

Contact us for any type of application development services or hiring services in the areas of Flutter app development or Swift app development. As you compare Flutter vs Swift, whichever you choose, it is like leveraging the better of the best!


SPEC INDIA, as your single stop IT partner has been successfully implementing a bouquet of diverse solutions and services all over the globe, proving its mettle as an ISO 9001:2015 certified IT solutions organization. With efficient project management practices, international standards to comply, flexible engagement models and superior infrastructure, SPEC INDIA is a customer’s delight. Our skilled technical resources are apt at putting thoughts in a perspective by offering value-added reads for all.

Delivering Digital Outcomes To Accelerate Growth
Let’s Talk