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ReactJS vs Angular: Pros and Cons, and Which One is the Right Choice for your SaaS in 2021?

September 28, 2020 – Sona Hovhannisyan
reactjs vs angular

ReactJS vs Angular: Pros and Cons, and Which One is the Right Choice for your SaaS in 2021?

Having an awesome SaaS in mind is a great start, but you also need to think about execution. ReactJS and Angular are both front-runners as JavaScript technologies, leading developers to choose typically either one for the project. Both of these are neck-in-neck when it comes to competition, so it can be a bit difficult to pick a preference. For this reason, we’re going to look at the pros and cons of both to understand which is the right fit for your SaaS.



The Basics

ReactJS was developed and maintained by Facebook and Angular by Google, already giving them both high reputations. The React vs. Angular battle is an ongoing one, with expanding communities and newer updates to tweak with. Angular has a farther history since the current version had a predecessor called AngularJS which was launched back in 2010. The newer version of Angular has made changes to ensure a more efficient user experience. On the other hand, React is a fairly new library which was publicly open-sourced in 2013, but has already dominated rankings. Some popular apps built with React are Instagram, Airbnb, and Netflix, while you may know PayPal,, and Freelancer are built with Angular.

One value to differentiate is that ReactJS is a library and Angular is an MVC framework. What does this mean, exactly? Well, their categories say a lot about either one and how they differ in structure. React is a single library which may require other add-ons to develop more complex apps, while Angular is an entire framework which includes various libraries and structural support. Both are useful on their own, but sometimes you choose one or the other based on need for the specific situation. We’ll take a closer look at how this impacts the key differences between both technologies.


  • ReactJS: For React users, the basic skills are easier to pick up and have a lower learning curve than Angular. This is mostly due to React’s code and component re usability factor which makes setting up an SPA (single-page application) a lot quicker. The basics are easier to pick up and let you kick start the new project right away. This factor affects positively on the budget-friendliness of hiring ReactJS developers.
    Another factor is the Virtual DOM, known as the highlight of ReactJS and the reason why many choose to develop their app with it. In comparison with Angular’s use of the traditional DOM, React’s approach makes rendering more efficient and lightweight.
  • Angular: As a framework. Angular offers a much larger array of functions which are constantly updating. This is a better choice to put professional web development skills to the test. Although this requires putting further efforts into training and learning, the end-result is worth it. This also means that you can start working on your app right away if you already acquire these skills, leaving you room for improvement afterwards.

SEO is a valuable factor to consider as well since React has the upper hand in this category. React is comparatively SEO-friendly since it offers side by side rendering instead of merely client-side.

When deciding between ReactJS vs. Angular, mobile optimization is something to consider. While both are capable of creating mobile versions, React Native offers a simpler approach to creating a mobile app.

Another plus side is how Angular’s coding makes building SPAs an easier task. Codes are shorter and segments can also be reused. It’s unit testable, which many consider a huge positive factor. Last, but not least, a responsive and efficient client-side experience is ensured.
Angular is also more well-known because of its predecessor Angular 1 or AngularJS. Especially since it’s backed by the Google community, you can find a larger audience and users of the framework online.


  • ReactJS: While React is easy to pick up and implement, many developers agree that it isn’t worth learning in-depth since there isn’t much to expand on. Also, React’s online community is a lot less than Angular’s due to it being a lot newer in the market. Angular has been around for almost a decade, leading them to have more support groups and tutorials while React is still a gradually increasing community. Due to this, React is still considered a young member and needs time and updates to offer the full package for web developers. As a library, you’ll also need to combine it with various other libraries to build a stable foundation for the app.
  • Angular: Angular is more time-consuming and technical to learn due to its steeper curve. It uses TypeScript, which many have to learn from scratch in order to follow along to tutorials of its features for the best practices. This makes it more challenging for novice developers and requires more level of expertise using the framework. Angular also requires larger efforts to make the app SEO-friendly because of its client-side rendering factor. This means you will have to take extra measures to optimize, and even in that case full optimization isn’t guaranteed.

So, What Now?

We looked at both sides of React and Angular for a better understanding of the features they offer and when these are put to best use. It’s a complex choice between ReactJS vs. Angular because of their differences in structure. This makes comparing the two a tricky task since each of their features are particular to different needs. With React, you can learn the basics in no time and whip up an app, but if you want to take things slow and steady with more complex features, Angular is a better fit. There really isn’t one “perfect” JavaScript technology since we saw that they each had their own pros and cons. Despite this, either one can be a perfect choice for a specific project. If you have the chance, play around with both to have practical understanding of which works to your liking more. The choice comes down to the complexity and speed you expect for the project.

Sona Hovhannisyan
Post by Sona Hovhannisyan
September 28, 2020
Sona is the story-maker of Incredo. With her great writing skills and intellectual information processing she makes the best content for best audience. She is very punctual in everything she does. She has a strong writing experience with MBA degree. Because of her articles, thousands of clients are becoming more informed about different issues in different industries.