Top 13 Open-Source Swift UI Libraries For iPhone App Development

Unless you have been living under the rock, you will be well aware of the fact that the Apple Store is the second-leading app store worldwide. As of today, it comprises more than 1.96 million apps. Moreover, the iOS App Store revenue is significantly higher than Google Play’s, garnering $1.9 billion in the third quarter of 2020.

Ever since Apple opened its App Store doors, the number of developers globally trying to make the most of the lucrative opportunity and earning profits has increased manifold. To ensure the iOS apps work efficiently, it is crucial to choose the right tech stack.

No wonder the popularity of Swift, an open-source programming language for Apple OS and Linux apps, has increased in the last couple of years. Created in 2014 by Apple, Swift is safe, easy-to-deploy, and guarantees favourable results.

It has the potential and functionalities to allow modern iPhone app development service providers to build high-quality apps in less time and fewer errors, and open to opportunities that increase the engagement rate.

This article discusses 13 open-source Swift UI libraries that are useful and top-rated and can be used for efficient iOS app development. Let us dive in:

1. Macaw

Macaw is a dynamic and easy-to-use vector graphics library written in the Swift programming language. It has SVG support, which renders SVG graphics from the design tool itself, complete with Macaw events and animation support during iPhone app creation.

Modern iPhone app development service providers spend a lot of time converting designs into native views, which can be resized for multiple screens. With Macaw, it is possible to reduce that development time and describe all graphics in high-level scene elements.

One can deploy affine transformation, user events, and animation besides various other effects during the iPhone app development process. Macaw is simple—you can get started with it in several lines of code.

Requirements: Mac OS X 10.11+ // iOS 9.0+ // Xcode 7.3+

License: MIT License

2. Stellar

Stellar is known as the brilliant physical animation library for Swift. UIDynamics enables the iOS app development company to easily customize animation effects, such as EaseInEaseOut, BackEaseIn, SwiftOut, BounceOut, BounceReverse, Push, Attachment, and Snap.

One of the best things about iPhone App Development is the wide-range of third-party libraries available. However, with high volume comes the challenge of managing dependencies. That is where dependency managers can make a difference.

The reason Stellar is so easy to deploy because of the presence of dependency managers such as CocoaPods and Carthage, which use dynamic frameworks rather than static libraries.

Requirement: iOS 8.0+

License: Apache 2.0

3. Material

Developed by Google’s engineers and UX designers, Material ensures a reliable development workflow for attractive and functional iOS apps. It is the interactive building block for creating a user interface of the iOS apps.

Material is written in Objective-C and supports Interface Builder and Swift UI Libraries. It is behind many of the elements we see in an iOS app, including but not limited to:

  • Top app bars that showcase data concerning the current screen
  • Bottom navigation bars that allow movement between primary destinations in the mobile app
  • Dividers which group content in layouts and lists
  • A floating action button that represents the direct action of a screen
  • Bottom app bars that display navigation at the bottom of the mobile screens

Requirements: Minimum iOS deployment target of 10.0+ // Xcode 10.0+ // CocoaPods 1.5+

License: MIT License

4. RazzleDazzle

RazzleDazzle is a simple AutoLayout-friendly keyframe animation framework deployed in the iPad application. Written in Swift programming language, it is ideal for scrolling app introductions.

RazzleDazzle adds scroll-view-powered animation effects to the iPhone and iPad app intros. From a marketing perspective, the app onboarding series are made possible because of RazzleDazzle. The UI library enables an easy way to layout a paging scroll view that does what the user expects it to do when rotated or used in a split-screen on iPad.

RazzleDazzle is developed on top of the animations library. The developers must take proper care to ensure the iPhone and iPad layout responds appropriately to any view size changes.

Requirements: iOS 8.0+ // iOS 9.0+ // iOS 10.0+ // iOS 11.0+ // iOS 12.0+

License: MIT License

5. Popover

This Swift UI Library is responsible for the balloon pop-up effect as seen on the Facebook mobile app. Developed purely in Swift programming language, Popover is available through both dependency managers, CocoaPods and Carthage. Install the Popoverkit by using CocoaPods in your profile, and create a Cartfile for listing the Carthage framework.

Developers can use it to deploy an animated effect that pops out a given frame. It comes in handy for subtly enhancing app UI and mobile onboarding, which requires displaying a series of information quickly to the user.

Requirements: iOS 9.0+ // Swift5

License: MIT License

6. ScrollableGraphView

This open-source Swift UI library enables a dynamic scrollable graphic in iPhone app development for increasing the transparency of hidden datasets in the app.

Developed by GitHub users for initially a small project, ScrollableGraphView’s Version 4 was recently released, adding multiple plots, more reference line customization options, and dynamic reloading of values.

This enables the mobile user to scroll through the graph quickly. The latest version has also fixed various bugs in the library. The public interface of ScrollableGraphView is now incompatible with previous versions. If developers want to continue using the older version, they must specify it in their podfile.

Requirements: iOS 9.0+ // Swift5

License: MIT License

7. Reel Search

Reel Search is an open-source component deployed in the iPhone app development. It enables iPad Mobile app users to select options from a list of items written in the Swift programming language. Ramotion, an app development company, developed this Swift UI library.

The easiest way to install Reel Search is through dependency managers such as CocoaPods and Carthage. Reel Search is a hot favorite of developers as it enables them to create a unique and user-friendly app experience, which is a crucial factor for iOS apps to top the Apple Store.

Requirements: iOS 8.0+ // Swift 4.0

License: MIT License

8. SwiftLint

Maintaining codebase consistency within a team of developers can be very hard. Imagine keeping track of different conventions and styles. Combine that with varying levels of experience in the programming language. You will have an iOS app that is difficult to debug, especially if new developers manage the app in the future.

SwiftLint is a tool that enforces style and conventions from the Swift UI library style to maintain codebase consistency. It cleans your source code and applies rules for syntax that developers can follow to preserve the Swift codebase’s high quality. It projects that utilizing SwiftLint is more comfortable to expand and maintain.

Requirements: Mac OS X 10.11+ // iOS 9.0+ // Xcode 7.3+

License: MIT License

9. Firebase by Google

This Swift UI library is a game saver in regards to client-server applications. While the front-end development may not be as challenging, learning to write backend code (server-side) can be tedious and waste time and productivity for iOS app development service providers. To avoid getting stuck in such a scenario, Firebase is ideal for server-side support.

The Swift UI library not only reduces server costs but also supports real-time database manipulation. There are a couple of things you can achieve with Firebase, namely:

  • User authentication, including Github, Google, and Facebook login
  • Stacking of large files (e.g., videos and photos) with Firebase Storage
  • Database management
  • Analytics and crash reporting
  • Push notifications with Firebase Messaging
  • Adv monetization with Firebase AdMob

The best part is to avail of all these features by just implementing Firebase in the iOS app development process—without writing a single line of backend code.

Requirements: None—works on iOS, Android, and the Web

License: Google-owned

10. RxSwift

RxSwift is a part of Functional Reactive Programming, also known as Rx, and is used in different programming languages and devices. The best part about RxSwift is that it enables the iOS developers to continually observe asynchronous operations as events or data streams, which is probably the highlight of this Swift UI library.

Error handling is simple in RxSwift. If one sequence ends due to an error, then all the other dependent arrangements also terminate. The library applies the short circuit logic. As of today, the iOS app solution happens in the MVVM pattern, which makes RxSwift an ideal choice for iPhones.

Requirements: iOS // macOS // tvOS // watchOS // Linux

License: MIT License

11. SnapKit

SnapKit is a popular open-source Swift UI library because it allows app builders to manipulate the auto-layout constraints with a concise codebase. Further, it simplifies the layout logic applied in the code for better readability and comprehension.

SnapKit is “Type-Safe” by design, which means the developers make lesser programmer errors and keep invalid constraints from getting built. This boosts their productivity. It is installable through both dependency managers, CocoaPods, and Carthage.

Plus, SnapKit has a thriving iOS application developers’ community. So that is another factor why it is so well-liked by the developers.

Requirements: iOS // OS X

License: MIT License

12. CryptoSwift

CryptoSwift is the new open source project in the Swift ecosystem. It represents the growing collection of standard and safe cryptographic algorithms implemented in the iOS app development process.

CryptoSwift refers directly to CryptoKitThis allows the company to deploy their app and access safe cryptographic APIs and quickly write the cross-platform codebase.

CryptoSwift also enables authenticated encryption that hides your data and resists cyber-attackers trying to fiddle with it by using AES GCM. In a nutshell:

  • It is easy to use.
  • It has a convenient extension for Data and String
  • It supports incremental updates in the iPhone app development.

Requirements: iOS, macOS, tvOS, watchOS, Linux

License: Copyright (C) 2014-2017 Marcin Krzyżanowski

13. mChat

mChat is a real-time messaging app for iOS apps. Entirely written in Swift programming language, it implements the fast and reliable Firebase Database. That means it receives data instantly, making the messaging process more efficient amongst its users.

mChat uses a Mapbox API, which provides different styles of the map. It also helps locate friends on a map, unless, of course, they have switched on the anonymous mode. The design of mChat was inspired by none other than the Telegram messenger.

Requirements: Xcode version 11.2.1+ // Swift 5 // iPhone 8.0+ // iOS 13.0+

License: Copyright 2020 VITALIY PALIY

Summing it up

There is no doubt that the open-source Swift UI libraries are getting more diverse, and their number is on the rise. All of this will enable you to give a competitive edge with your iOS app.

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