Swift vs Objective C: Which is best for iOS development in 2021

Though It might mean that you are getting a lot of errors as developers, it also accounts for a short feedback loop and a better understanding of the code for developers. Dynamic libraries are significantly smaller in size due to the way they are stored in memory. While Swift also uses ARC, it supports the use of ARC for all APIs that is streamlined in a manner that is similar to Cocoa Touch’s memory management.

swift vs objective c performance

Since Cocoa has superior quality libraries, it will take care of the heavy task ensuring there is no slowing down. The tables are traversed at runtime, and owing to the active nature and its promotion of the id superclass, the format is slower. The library quality is another issue to contend with in the design. Contribute your expertise and make a difference in the GeeksforGeeks portal.

Objective-C memory management within the Cocoa API

Don’t forget to weigh out the pros and cons of your tooling support, stability, runtime, and APIs. It’s a little bit more difficult to learn, but the majority of developers out there know how to use it. I’d still recommend that new developers start off learning Swift. It’s the safer option in terms of stability and the ability to handle errors. You don’t need to find a new IDE if you’ve been using Xcode to write iOS apps.

Since Swift is optimized to work with iOS apps, this ensures the apps being written are of high quality. Each has its unique origin story, each has carved out its niche in the world of iOS development. Imagine Swift as a futuristic race car, built for speed, with all the latest safety features and a shiny, streamlined body. It’s designed to be user-friendly and eliminate many of the pitfalls that could cause crashes in Objective-C .


In this case, I presume Objective-C is the victim of it’s object oriented pureness . It’s possible that the answer to « How is Swift faster? » might be « It’s not, actually », @BryanOakley; that is the gist that I get from Jan’s answer. Faster has been always a vague term, and can mean anything by the context.

So, the object-oriented syntax comes from Smalltalk, and the other syntax comes from C. Performance in programming languages is kind of like airspeed in aviation. Swift, with its newer, optimized syntax and structure, is like a supersonic jet. It’s designed for speed and efficiency, often outperforming Objective-C, which might feel more like a trusty old propeller plane. It’ll get you there, sure, but it might take a bit longer.

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The language Objective C is a little complex but this is expected as a fairly old language. As a cons Objective C does not supports operator overloading like C++. As the language was implemented on existing C compilers as a pre processor a GCC module. It prevents integers from overflowing their allotted memory.

swift vs objective c performance

So, this means we can get answers to our queries easily on Stack overflow and Google. Objective-C is also considered a super set of C because it has all of C’s features. Because of this, we can easily use a C or C++ code in Objective-C. Even at larger companies where Objective-C is still used heavily, interviews can still be done in Swift. So you can learn Objective-C once you join the company and not worry about burdening yourself with more things to learn before the interview.

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Swift code resembles natural English speech, just as many modern popular languages. But, objective c started becoming obsolete since it lacked lots of invaluable features. Which were present in several other programming languages. Because of these loopholes, Apple introduced Swift in 2014, to improve objective-C. From team experience to project details, choosing either of the languages or migrating to Swift can pose a challenge for your team.

swift vs objective c performance

With Swift, there’s also no garbage collection like Java, which adds to Swift’s speed. Swift features a new syntax that makes it easier for the programmers to write a code. It assists the programmers in reading, writing, https://www.globalcloudteam.com/ and altering the code within the program. The number of lines required from the Swift code will be relatively smaller. Therefore it lowers the time necessary to compose the code also improves cost-efficiency.

Objective C vs Swift (vs Swift UI): Which one is the best?

ARC is a feature for both Objective-C and Swift languages that manages memory with no programmer effort. The problem is that the code isn’t available for procedural C and some other APIs like Core Graphics. This impacts memory management objective c vs swift and causes extensive memory leaks. Objective-C has a complex code structure since it’s built on the C language. It includes a lot of @ symbols, lines, semicolons, and parentheses conditionals with internal “if” and “else” statements.

  • It has rapid speed and functionality owing to its improved money management and object-focused pattern that avoids garbage collection.
  • It’s powerful and versatile, but it might take a bit more effort to get off the ground.
  • For modern programmers who works on languages like Python or JavaScript, this is a very complex syntax.
  • The objects are part of the Objective-C classes, especially when they represent values.
  • With the community’s involvement, these goals are definitely attainable, and we are excited to see what the future of Swift will hold.
  • Howeversome studiesindicate that the difference is not as dramatic.
  • Founded in 2011, we’ve been providing full-cycle mobile and web development services to clients from various industries.

You may find yourself spending hours upon hours converting to new syntaxes even after a minor update. This could also cause broken builds that may last for a few days to even a week, depending on the size of your project. If you really want to learn another language but don’t have a reason to, consider using the one you’re less familiar with for a prototype. It’s easier for one person to learn a new language than for three people to learn a new language, so you’ll have to be a team player here and make the adjustment.

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When assessing Swift vs Objective-C, the latter is prevalent as users conversant with it are numerous. The former is not as prevalent owing to its recent and innovative addition. But its rapid pace of growth gives it the potential to be the prominent one because of its easy learning and protective capacities. Employing runtime code results in Objective-C exhibiting a slow pace. The sluggishness is owing to the additional activity involved in coding.