Why Learn Swift?

All data used in this article is as of January 6, 2016

If you want to develop native iOS or Mac OS apps, then you basically need to learn Swift. Native apps outperform cross-platform hybrid apps, and the built-in SpriteKit makes it easier than ever to build 2D games with Swift.

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Beginner Friendliness

Heavily influenced by Python and Ruby, Swift was designed to be beginner-friendly and fun to use. Both of these will help greatly in terms of motivation. However, considering that Swift is very new, resources may be a bit lacking in number or easily outdated, but this situation will definitely improve with time.

Easy to Understand

As a high level language, Swift reads quite close to English, so it is rather easy to pick up for beginners. Apple also took lessons from all the mistakes people were making with Objective-C and made designs to prevent beginners from shooting themselves in the foot.


Easy to Maintain

Swift is a statically-typed language, and xCode will check your code for errors before it builds your app. This means errors will be easier to track down. Furthermore, since statically-typed languages are also more strict with the definitions of things, you will have less strange and unexpected errors, which means your codebase will be easier to maintain as it grows in size and complexity.


As a statically typed language, Swift is faster than dynamically typed languages because things are more clearly defined. Thus, when the app is running, your machine's resources will not be wasted on checking the definition of something in your code.

Optimized Memory-Usage

Resource usage is an important figure for mobile apps, so Swift uses Automatic Reference Counting (ARC) that will track and manage your app’s memory usage in real time to make sure it does not take up too much memory. This is quite useful, especially as your app grows larger.


First of all, community size is important, because the larger a programming language community is, the more support you'd be likely to get. As you step into the programming world, you'll soon understand how vital support is, as the developer community is all about giving and receiving help. Moreover, the larger a community, the more people will be building useful tools to make development in that particular language easier. As of now, there are over 600 notable programming languages world-wide.

So, with that context in mind, let's get into the details of the Swift community size.

10th Most-followed Programming Language on StackOverflow

StackOverflow is a programming Q&A site you will no doubt become intimate with as a coding beginner. There are over 15k StackOverflow users following Swift, and over 69k Swift-related questions have been asked.

Fast-growing Meetup Community

At meetups, you can generally network and learn from fellow developers. Meetups often offer mentorship to those who want it as well. While Swift itself does not have as many Meetup members or groups compared to other programming languages, iOS Development as a whole has a ton of meetups, easily making it the second largest dev community on Meetup.com.

Furthermore, Meetup.com has over 110 Swift groups totaling over 40k members worldwide. Considering Swift is a rather new language, these numbers are already quite impressive.

Over 240 Useful GitHub Projects to Ease Development

Swift is rapidly gaining useful tools, and although many critical or useful native iOS development tools are still written in Objective-C, in the future they're likely to have better support for Swift. Swift is compatible with Objective-C, though we would suggest picking up Objective-C before you decide to use a tool coded in Objective-C

Career Opportunities

Salary information from gooroo.io

Generally, iOS apps are known to be more profitable than Android apps. Thus, companies often prefer getting an iOS app first and there is a high demand for skilled Swift Developers. According to indeed.com, the average offered salary for Swift developers is up to 112k USD, which is higher than the average offered salary for other language skills.

While there are not as much job opportunities for iOS developers when compared to web developers, suffice to say Swift developers are still in demand.


The future of Swift mostly depends on the future of Apple, which so far seems very bright. Since Apple will be focused on improving Swift in the years to come, you can expect it to stay relevant for a good while.

TIOBE Popularity Index: #14

According to the TIOBE popularity index, which is based on search engine results, Swift is now more popular than Objective-C.

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