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Most Popular Programming Languages for App Development (+Pros and Cons)

May 20, 2019

The good, the bad, and the ugly.

Just like the saying “there’s an app for that”, there’s also a preferred programming language for that app.

Most popular programming languages for apps

Mobile apps and web apps are becoming more and more prevalent. Apps account for over 90% of internet time on smartphones and 77% of internet time on tablets. Even schools are starting to teach kids how to code. Most developers are well-versed in multiple languages, maybe not to an expert-level, but they at least have a general understanding of the potential use cases and basic syntax. Let’s dig in!


Java is a general-purpose programming language that can be used on many platforms. It’s the #1 programming language, a standing largely attributed to its compatibility across devices. Java can be used to build anything from large servers to small mobile apps.

line of Java code


  • A wide variety of well-tested libraries and frameworks for developers
  • Object-oriented, which allows you to reuse objects and stay organized
  • Simpler syntax compared to C++
  • Cross-platform development capabilities
  • Automatic memory management
  • Large community of programmers


  • Pay for a commercial license starting in 2019
  • Poor performance and speed
  • Code can be complex and verbose


Python is an open-source, all-purpose programming language that has cross-platform capabilities. It’s often the first language learned by new developers because it’s simple to use and the style guide makes the syntax easy to read. Python is commonly used to build low-level prototypes quickly, as well as more strenuous projects like machine learning and data science.

line of Python code


  • Easy to learn, especially for beginners
  • A lot of helpful documentation from a large community
  • Supports multiple platforms and systems
  • Flexible with a wide variety of available frameworks
  • Can scale projects with ease


  • Slow to execute
  • Low memory management
  • Not native to specific mobile environments
TIP: Check out our guide on PHP vs Python – which is better for app hosting?



Swift is Apple’s programming language for all of its operating systems (i.e. iOS, macOS, etc.) It’s a high-level language that is safe, fast, and interactive. While there aren’t a lot of Swift developers compared to other programming languages, it is definitely on the rise.

line of Swift code


  • Easy to read and write because it uses less code to perform tasks when compared to other languages
  • Programmers are in demand
  • Open-source work in progress, constantly updated and consistently improved
  • Safe and secure
  • Compatible with Objective-C
  • Manages memory automatically


  • Perceived as unstable because it’s a relatively young language
  • Few Swift developers
  • Doesn’t work well with third-party tools
  • Limited cross-platform capabilities

TIP: Languages like Swift require specialized tools to get the job done. For example, there are different integrated development environments (IDEs) that are better than others for your language of choice. See what real users are saying about these tools and how to find the best solution for your next dev project.

Discover the Highest-Rated IDE Software →


C++ is a general-purpose, object-oriented programming language that was developed as an extension of the C programming language. It’s considered an intermediate-level language, as the syntax can be fairly difficult to learn. C++ is favored by many developers because of its versatility and scalability.

line of c++ code


  • Similar to other languages like C, C#, and Java
  • Compiled language makes it fast
  • Scales easily for large projects
  • Compatible with many different resources and tools


  • Low memory management
  • Complex language with a limited standard library
  • Lack of custom operators
  • Strict syntax makes it difficult to use

Take it from the pros

When choosing which language you want to learn, it’s important to think about the type of app you’re building. Sometimes, a developer’s preferred programming language isn’t right for a specific project. See what these experts had to say when we asked them about the best app programming languages.

Read more: App Programming Languages →

Most Popular Programming Languages for App Development (+Pros and Cons) Interested in building an app? Learn about the most popular programming languages, how they are commonly used, and where to start.
Bridget Poetker Bridget Poetker is a former content team lead at G2. Born and raised in Chicagoland, she graduated from U of I. In her free time, you'll find Bridget in the bleachers at Wrigley Field or posted up at the nearest rooftop patio. (she/her/hers)

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