AngularJS vs. Angular: Choose the Best for Your Needs
9 min.

Angular vs AngularJS: what’s this about? These are two web application development frameworks, but one’s becoming a museum exhibit while the other is growing in popularity. 

Here, ProCoders takes a closer look at both AngularJS and Angular to help you decide whether to migrate and why to choose one over the other. Despite their similar names and origins, the difference between them will raise some eyebrows.

So, shall we?

What Is Angular?

angular is better then angularJS

Angular is an open-source web application framework. It was developed by Google and initially released in 2016.

The full story of Angular makes it clear why people get confused with the two frameworks. Particularly, many don’t understand what the Angular 2 vs AngularJS difference actually is. 

AngularJS is the original web framework released by Google in 2010 and known as Angular 1.x. It is based on JavaScript. For version 2 of AngularJS, the team at Google rewrote the entire code. This second version was based on TypeScript. 

However, what created the AngularJS vs. Angular dichotomy is that the team decided to maintain both as separate frameworks. And so Angular 1.x became AngularJS, while Angular 2 and other versions afterward (current version is 17) are known simply as Angular. 

The newer Angular has evolved into an intuitive framework, not just for building web applications but for cross-platform development as well (when used in combination with frameworks like Ionic). It has introduced modern features with innovative functionalities. If you want to build a mobile app with this framework, ProCoders enables companies to staff their teams with skilled developers.

Main Features of Angular

  • Two-Way Data Binding: Angular provides two-way data binding, which means that changes in the model are automatically reflected in the view and vice versa, without the need for explicit DOM manipulation.
  • Angular Command Line Interface (CLI): It’s a tool that limits dependence on external resources. Using Angular CLI saves time in configuring dependencies and deploying your program. 
  • Dependency Injection: Angular has a built-in dependency injection system that helps manage the dependencies of your components and services. This makes your code more modular and testable. 
  • Directives: These are markers on DOM elements that tell Angular to do something to the DOM. Angular comes with several built-in directives like ngIf, ngFor, and ngSwitch, but you can also create custom directives.
  • Templates: Angular offers faster code generation by transforming rich template syntax into optimized code. Basically, it ‘assists’ developers in writing code so that programming becomes less drudgery. 
  • Component-Based Architecture: Angular heavily relies on components. Each component has its own HTML template that declares what renders on the page, a Typescript class that defines behavior, and a CSS selector that defines how the component is used in a template.

What Is AngularJS?

As we mentioned before, AngularJS is the legacy version of Angular. It was built on declarative programming and model-view-controller (MVC) architecture. 

AngularJS’s long-term support (LTS) ended in January 2022. However, some developers still find the framework worth using because many apps are already made with the JS version, and not all businesses are choosing to migrate just yet. So, they still look for web developers skilled in this framework, which becomes harder and harder every year. (Sure, we at ProCoders have experts in the framework.)

Main Features of AngularJS

  • MVC: The codebase is divided into three sections. The sections are model, view, and controller (MVC). This architectural structure provides intuitive code organization. 
  • POJO: Plain old JavaScript objects (POJO). This makes it easy to write, test, and deploy code, even across different browsers. 
  • Testability: AngularJS was built with testability in mind; it leverages dependency injection (declarative code description) and uses a unit-testing framework called Karma.
  • Directives: The technology extends the functionality of HTML via ‘directives’ that specify the attributes of DOM elements. This allows for building more powerful applications. 

What Is the Difference Between Angular and Angular JS

First, let’s look at some numbers. According to the 2023 survey by Stack Overflow, 17.46% of almost 72,000 developers use Angular, whereas only 7.21% opt for AngularJS.


Angular has 367,623 live and historical sites, out of which:

  • 1.77% are in Top 1M
  • 4.15% are in Top 100K
  • 4.97% are in Top 10K

AngularJS has 5,965,064 live and historical sites, out of which:

  • 6.53% are in Top 1M
  • 14.22% are in Top 100K
  • 18.86% are in Top 10K

This data may be misleading because seeing so many more websites using AngularJS may create an impression of its superiority. However, the two frameworks are 6 years apart (AgularJS was released in 2010, and Angular saw the world in 2016). Plus, many website owners still hesitate to migrate.

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Last but not least, the current popularity of the innovative Angular is visible clear as day if you check Google Trends:

angular and angularjs google trends

Now, how about we review the actual differences between the two frameworks?



Angular’s architecture is called component-based architecture, called so due to the independence of components. Each one has a unique structure and can be reused separately (even though in the codebase, multiple components must interact). This makes a difference in Angular vs. AngularJS performance. 


AngularJS is built on MVC architecture, a very early standard for developing web applications. All three terms (model, view, and controller) are considered aspects of a code so that you can organize codebase sections into separate functions. While MVC splits the overall code into sections, Angular’s CBA defines each aspect by components so that each section of the code, technically, has its own ‘MVC’.



Angular is based on TypeScript, an object-oriented programming language based on JavaScript. Being the more modern language, TS introduces strong typing, enhanced tooling, and better object-oriented programming features, which significantly improve the development process.


From its name, AngularJS, it is obvious that the framework is built on JavaScript. JS is a ubiquitous programming language; it works on any browser. Unlike TypeScript, JavaScript code has no need for compilation thus making it easier and faster to deploy apps.



Angular is popular for its adoption of two-way data binding. That is, users can automatically display the effects of their code on the application interface in real time. Unlike in AngularJS, there is no explicit implementation of two-way data binding. It simply happens with a combination of event binding and property binding.


AngularJS also uses two-way data binding, but its performance is not convincing because of the digest cycle concept. There is no ultimate authority on data binding between the DOM and the model (of the MVC structure). So, without an agreement before both, a loop is triggered, which somehow introduces an error code. This is called dirty checking.

While AngularJS had its perks, which we’ll discuss in a moment, it’s still a legacy framework coders use only to migrate or somehow attempt to maintain old apps built using the library.

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Pros and Cons of AngularJS and Angular


  • Smaller codebase.
  • Built with unit testing in mind.
  • JavaScript has a wider spread than TypeScript.
  • AngularJS is a legacy framework that is no longer being updated.
  • AngularJS was created for designers. So it is not as developer-friendly as Angular is. 
  • Impossible to build SEO-optimised web applications without backend HTML rendering. 
  • Application performance becomes less sustainable as the codebase increases and becomes more complex. 


  • It’s being actively updated, with new versions coming out regularly.
  • Cross-platform mobile application development potential with Ionic. The combo can be used to develop any type of app, even create a fitness platform, as we at ProCoders did. 
  • A much better-performing data-binding algorithm.
  • The components are independent and reusable.
  • TypeScript’s static typing allows for writing cleaner code, which also improves performance
  • It automatically converts HTML and TypeScript into JavaScript. This is called Ahead-of-Time (AOT) compilation, and it allows for faster browser rendering.
  • TypeScript is less popular and more challenging to learn than the far more widely known JavaScript.
  • Angular applications are sometimes unnecessarily complex. They may be an inefficient solution if building small, basic applications.

So, Should You Use AngularJS?

AngularJS has come to the end of its life in 2022, while Angular end of life is nowhere to be seen. So no, ProCoders specialists encourage businesses to opt for another framework 

If Angular is too complicated for the project you have in mind, React and Vue are more efficient at building small apps. 

When Is Angular a Better Choice?

The simple answer is:

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“Angular is the better choice, as long as the other option is AngularJS.”

Andrew Smetanin

Project Manager & Angular Expert at ProCoders

There are many more libraries you can use for smaller solutions. However, according to Andrew, “Most applications today are built to scale, so there’s a better long-term reward if you overlook the initial inefficiency of Angular in building small apps.“

Indeed, you could use the JS version and opt for a migration later on, but that’s counterproductive and will take a long time. So, it’s better to adopt a more modern solution from the get-go. Angular is more future-proof since its support continues, and it also continues to receive new features. More so, to build cross-platform mobile apps, you have no choice but to use Angular since AngularJS lacks mobile support.

By the way, popular apps such as Gmail, PayPal, and Upwork were built using Angular.

Overall, Angular ensures a more productive development process and that ultimately means that it is more cost-effective. Really, when you weigh the pros and cons of each, Angular comes out top in all the major factors. 

When Is AngularJS a Better Choice?

man symbol

“AngularJS and Angular 2+ are entirely different technologies, but they can be mixed in a hybrid approach. This setup allows core AngularJS to recognize Angular 2+ components and vice versa. 

The AngularJS team had long promised an upgrade path to the newer versions of Angular, leading many large companies with stable and unique AngularJS projects to delay migrating. Ultimately, AngularJS was left behind and ceased development, becoming obsolete.

This may have been influenced by the emergence of Backbone.js and Vue.js, prompting a complete overhaul of the technology to remain competitive.”

Andrew Smetanin

Project Manager & Angular Expert at ProCoders

AngularJS used to be quite popular. So, nowadays, businesses that used to have software based on that technology are choosing to migrate to Angular to ensure smooth operation and regular updates.

This approach works like a charm, and we at ProCoders have cases to prove it!


MultiQ, a digital signage provider, had a mission to migrate their complex CMS software from AngularJS to Angular. With the help of our dedicated team consisting of two senior Angular developers working full-time, the project was completed within 18 months. 

The migration not only improved the front-end security for MultiQ’s customers but also eliminated AngularJS core in favor of Angular 5+. This modernization effort enhanced the company’s ability to deliver a secure and up-to-date CMS solution to its clients.


Ushahidi, a platform for crowdsourced data collection, successfully migrated their web-based platform from AngularJS to Angular 14. The dedicated migration team assembled by ProCoders comprised a project manager, three senior Angular developers, and a QA engineer, who worked full-time on the project for 12 months. 

They collaborated closely with the in-house team to improve code quality and launched an updated app with modernized UI designs. This migration ensured that Ushahidi’s platform remained cutting-edge and enhanced the user experience for its global user base.


AngularJS and Angular are two Google web frameworks that offer different solutions to the same problem: building user interfaces. 

AngularJS enabled developers to build powerful and feature-rich websites with a few lines of code. Angular, on the other hand, is an efficient software development framework that works without additional dependencies. 

After reading this article, we hope you see that there is no real Angular vs. AngularJS debate; the latter is no longer updated, so it’s time to discover other options.

However, whether you are using AngularJS or Angular for your app or if you plan to migrate an existing app to a more suitable framework, contact ProCoders for excellent service. 

One of the ways to reduce costs on development is by outsourcing your projects to an offshore development team. At ProCoders, we handpick our developers based on their skills and experience, bringing them together to form high-powered teams that solve clients’ challenges. 

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What is difference between Angular and AngularJS?

AngularJS is the first version of Angular, a JavaScript framework, while Angular refers to versions 2 and above, rewritten to use TypeScript for more advanced features and improved performance.

What are the main challenges of AngularJS and Angular?

AngularJS faces challenges due to its age, lack of updates, and performance issues. Angular, while more modern, can have a steeper learning curve and requires understanding TypeScript.

Angular vs JavaScript: do they work together?

Yes, Angular and JavaScript work together. Angular is a framework built on JavaScript, enhancing its capabilities for building dynamic web applications. Angular simplifies development by providing structured code and powerful features, using JavaScript as its foundation.

Is AngularJS the same as Angular?

No, AngularJS and Angular are not the same. AngularJS refers to the original JavaScript framework, while Angular denotes versions 2 and above, which use TypeScript.

Should you use Angular vs AngularJS?

You should use Angular for new projects because it offers a more modern, efficient, and scalable framework compared to AngularJS, which is outdated and no longer developed.

Why AngularJS is outdated?

AngularJS is outdated because it lacks the advancements and optimizations found in newer versions of Angular, and its development has ceased, making it less suitable for modern web applications.

Why AngularJS is not used?

AngularJS is not used for new projects due to its outdated architecture, lack of development support, and the availability of more advanced, efficient, and actively developed alternatives like Angular.

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