swift.pngPopular freelancing website Upwork today released its quarterly study ranking the fastest-growing skills employers are looking for, and Apple's Swift programming language scored the number two spot, meaning it's one of the most sought after skills for freelance developers.

Swift, along with the other top 10 skills that made the list in the fourth quarter of 2016, experienced more than 200 percent year-over-year growth. Other skills that have become more essential on Upwork alongside Swift include natural language processing, Tableau, Amazon Marketplace Web Services, and Stripe.

Introduced in 2014, Swift is Apple's programming language, developed in part by Chris Lattner who made headlines recently when he left Apple for Tesla. Designed to be concise yet expressive, Swift replaces Objective-C and is being increasingly adopted by developers.

Swift Playgrounds
Swift is meant to be simple to learn, something Apple highlights with Swift Playgrounds, an app that teaches children to code using the Swift language. Apple has been updating and refining Swift since its 2014 debut, and is set to unveil Swift 3.1 in the spring of 2017.

Upwork's Skills Index measures year-over-year growth rates based on freelancer billings through the Upwork site.

Tag: Swift

Top Rated Comments

2457282 Avatar
115 months ago
There are much more and much easier ways to learn Android programming than Swift. Sadly.
Wait, I don't believe Swift works for Android. Did I miss a joke?
Score: 9 Votes (Like | Disagree)
khaan Avatar
115 months ago
It's a ****** language with so many bugs underneath the compiler level. Garbage collections are completely broken in certain scenario that has been reported years ago, which still havent fixed yet. Not to mention the terrible performance with Swift compare to Objective C. There is a reason why even Apple themselves are not bothering adapting to it internally.

The syntax itself is even more bizarre and crazy to read. The entire idea of unwrap and wrap is like the a beginner's protection against null pointer. They tried so hard to reinvent a language with all other language combine, it just not working out. Essentially a DoA project.

Whoever think this language is on demand, you must be on some special kind of kool-aid. Most company's CTO or engineering director have no clue or any idea on what to use, they just follow the news and hype train to decide.
This is some quality ********. First of all Swift does not have a garbage collector, it uses ARC(automatic reference counting). If you don't understand what a retain cycle is, you will have memory leaks.

Optional, what you call wrap/unwrapping is not an idea that Swift came up with, a lot of functional languages like Haskell, Scala have it. It's not a beginner's protection, it's a way to guarantee that you never touch dangling pointers, the best part is the compiler does the heavy lifting and checks it for you. Once you grok the idea that you can map over optionals, they can even save you time and lines of code.

I agree that it has somewhat of a learning curve compared to objective-c, but it's nowhere near rust. And who told you that it has worse performance than objective-c?

I seriously believe that Swift will become the go-to language in a couple of years, both in the server-side space and in the mobile space.
Score: 5 Votes (Like | Disagree)
DMH0630 Avatar
115 months ago
It's a ****** language with so many bugs underneath the compiler level. Garbage collections are completely broken in certain scenario that has been reported years ago, which still havent fixed yet. Not to mention the terrible performance with Swift compare to Objective C. There is a reason why even Apple themselves are not bothering adapting to it internally.

The syntax itself is even more bizarre and crazy to read. The entire idea of unwrap and wrap is like the a beginner's protection against null pointer. They tried so hard to reinvent a language with all other language combine, it just not working out. Essentially a DoA project.

Whoever think this language is on demand, you must be on some special kind of kool-aid. Most company's CTO or engineering director have no clue or any idea on what to use, they just follow the news and hype train to decide.
Garbage collection? Swift and Objective-C both use reference counting.

Performance in apps is no longer greatly different between Swift and Objective-C since probably Swift 2.2.

The entire syntax is incredibly similar to Objective-C, especially semantically.

You do realize that Apple has nearly 20 years of code written in Objective-C right? No company would rewrite their entire codebase just because they have a new language, they'll phase it out with probably new development being done in Swift.

Seeing as null pointers and null pointer exceptions are one of the biggest causes for bugs I think safety is good, also Java has also adopted it the Optional type in Java 8.

Apparently someone is paying for people that do know Swift so regardless of it being hype or anything else the money is flowing and also its the language supported by Apple for all of its platforms so I doubt it'll die although it might become a niche used only for Apples platforms (thats the case of Objective-C anyway) and IBM is also spending money on Swift for the server.

So either IBM, Apple and everyone else spending money on it are stupid and you're incredibly smart or the other way around, the future will tell which is which.
Score: 4 Votes (Like | Disagree)
khaan Avatar
115 months ago
ARC is a form of garbage collection, just because it wrap the invisible autoreleasepool doesn't mean its really automatic.

Optional is nothing but a beginner protection. It doesn't save code, it add extra codes to save awful engineers from making corporate / enterprise software into oblivion.
ARC is not garbage collection.

ARC is compiler being smart and adding the retain/release calls to correct places automatically during compile time. The downside is every retain/release has some overhead.

A garbage collector sweeps the object graph in regular intervals during program execution, detects objects to release, and cycles. The downside is for large object graphs, this is a quite expensive operation and sometimes results in the application being frozen while the collector is running.

Optionals are an abstraction that makes life easier. You may see it as a beginner feature for awful engineers. But to be honest you sound like a beginner too.
Score: 3 Votes (Like | Disagree)
shansoft Avatar
115 months ago
It's a ****** language with so many bugs underneath the compiler level. Garbage collections are completely broken in certain scenario that has been reported years ago, which still havent fixed yet. Not to mention the terrible performance with Swift compare to Objective C. There is a reason why even Apple themselves are not bothering adapting to it internally.

The syntax itself is even more bizarre and crazy to read. The entire idea of unwrap and wrap is like the a beginner's protection against null pointer. They tried so hard to reinvent a language with all other language combine, it just not working out. Essentially a DoA project.

Whoever think this language is on demand, you must be on some special kind of kool-aid. Most company's CTO or engineering director have no clue or any idea on what to use, they just follow the news and hype train to decide.
Score: 2 Votes (Like | Disagree)
^VE1N Avatar
115 months ago
Any good books for beginners on swift that have a background in C++ and C#?
Check this one - https://www.safaribooksonline.com/library/view/ios-10-programming/9781491970065/
Score: 2 Votes (Like | Disagree)

Popular Stories

AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
Tim Cook WWDC 2018

Report: Tim Cook to Step Down as Apple CEO 'as Soon as Next Year'

Saturday November 15, 2025 2:40 pm PST by
Apple is preparing for Tim Cook to step down as CEO of the company "as soon as next year," according to the Financial Times. The company's board of directors and senior executives "recently intensified preparations for Cook to hand over the reins," the report said. While the report said that Apple is unlikely to name a new CEO before its next earnings report in late January, it went on to ...
iPhone Pocket Short

iPhone Pocket Now Available to Order, But Already Selling Out

Friday November 14, 2025 6:20 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. iPhone Pocket is available to order on Apple's online store starting today, in the United States, France, China, Italy, Japan, Singapore, South Korea, and the United Kingdom. However, it is already completely sold out in the United...
apple silicon mac lineup 2024 feature purple m5

Apple's 2026 Mac Plans

Friday November 14, 2025 3:23 pm PST by
Most of Apple's Macs are slated to get M5 chips across 2026, and there's a possibility we'll even see the first M6 chips toward the end of the year. Updates are planned for everything from the MacBook Air to the Mac Studio. MacBook Air (Early 2026) The MacBook Air will be one of the first Macs to get a 2026 refresh, with an update planned for the first few months of the year. The MacBook...
best early black friday deals

Best Black Friday Apple Deals Live Now - Save on AirPods, iPads, and Apple Watches

Saturday November 15, 2025 1:45 pm PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
tvOS 26 Profiles

tvOS 26.2 Adds a Useful New Feature to Your Apple TV

Friday November 14, 2025 10:02 am PST by
Starting with the upcoming tvOS 26.2 update, currently in beta, additional profiles created on the Apple TV no longer require their own Apple Account. In the Settings app on the Apple TV, under Profiles and Accounts, anyone can create a new profile by simply entering a name and indicating whether the profile is for a kid. The profile will be associated with the primary user's Apple Account,...
walmart new ornametns

Walmart Black Friday Deals Begin Today With Low Prices on Headphones, TVs, and More

Friday November 14, 2025 7:55 am PST by
Walmart's Black Friday sale has officially kicked off today, with an online shopping event that's also seeing some matching deals in retail locations. There are quite a few major discounts in this sale, including savings on headphones, TVs, and more. Note: MacRumors is an affiliate partner with Walmart. When you click a link and make a purchase, we may receive a small payment, which helps us...
CarPlay Pinned Messages

iOS 26.2 Adds New CarPlay Setting

Thursday November 13, 2025 6:48 am PST by
iOS 26 extended pinned conversations in the Messages app to CarPlay, for quick access to your most frequent chats. However, some drivers may prefer the classic view with a list of individual conversations only, and Apple now lets users choose. Apple released the second beta of iOS 26.2 this week, and it introduces a new CarPlay setting for turning off pinned conversations in the Messages...
iOS 26

Everything New in iOS 26.2 Beta 3

Monday November 17, 2025 3:20 pm PST by
Apple provided developers with the third beta of an upcoming iOS 26.2 update, and there are still new features that are being added with each beta that we get. We've rounded up all of the changes that Apple made in beta 3. AirDrop Apple added new AirDrop functionality, providing a way for two people to share files temporarily without having to add one another as contacts. iOS 26.2...