Why Fintech Will Find MERN Stack Ideal for their App Projects?

If your financial start-up firm intends to use a fantastic app to form its mobile presence, you should be concerned about the expense and other difficulties. By the time of November 2021, the Americas were home to 10,755 fintech startups, making it the region with the most fintech startups globally. And the after the pandemic fintech is on the rise. 

Since a financial institution cannot compromise security, application performance, or user experience, the difficulties are more apparent. For fintech apps, an appropriate selection of technologies and development resources is crucial.

How can development costs be kept to a minimum without sacrificing application performance, security, or quality? Hiring a full-stack developer who can create the app from scratch is one of the crucial steps, among many others.

You can further reduce costs by hiring a MERN stack development company, as you will have access to their talent pool.

MERN has a solid reputation for bug-free functionality, a robust backend, and superior data security among its cutting-edge technological stacks. It makes sense that finance application projects around the world favor the MERN stack. Let’s go over the main value propositions of the MERN stack for fintech apps.

Why Fintech Will Find MERN Stack Ideal for their App Projects?
Why Fintech Will Find MERN Stack Ideal for their App Projects?

What does the MERN stack contain?

A group of technologies together referred to as MERN, is used to create a web application from scratch. MongoDB for databases, ExpressJS for building RESTful APIs, ReactJS for the front end, and NodeJS for the back end are the four technologies that makeup MERN.

Let’s quickly examine these four technologies and how they relate to the criteria for creating fintech applications.


Open-source MongoDB is a document-oriented database platform with cross-platform features. MongoDB offers the web-friendly JSON format for data storage, renowned for its quicker scaling. MongoDB is the best database solution for fintech apps since it is easy to transfer data between platforms and scales more quickly.


It is a framework for backend web applications that allows NodeJS developers to create RESTful APIs. Facilitates the creation of scalable, quick, and secure web apps.


The MERN stack includes ReactJS for front-end development tools. It is well-known as a potent, component-based, modular JavaScript library for creating simple, fast web user interfaces. The code was perfect for the front-end development of fintech applications because of its high scalability, better responsiveness, and reusability.


The central backend technology for JavaScript execution on web servers in the MERN stack is NodeJS. It offers everything a backend for a finance application needs and is renowned for its safe and scalable architecture and quick runtime environment.

Why Do You Want to Bring the MERN Stack Into Your Fintech Vision?

MERN stack in finance app development offers numerous benefits. The MERN stack provides everything traditional finance app companies want, from low app development costs and unsurpassed data security to phenomenal speed.

Below are some of the key value propositions of the MERN stack that make it popular among fintech entrepreneurs.

1. MERN stack is an Open-source

The MERN stack’s technologies are all free and open-source. Naturally, using this technological stack at least can result in significant license cost savings for your business idea with limited funding. However, these technologies are already well-known and frequently utilized across various web apps in all industry verticals.

Free of charge, you can use publicly available internet resources to acquire ready-to-use components.

2. It Relies Solely on JavaScript

All three backend, front-end, and middleware technologies, except the MongoDB database, are JavaScript-based. You benefit from working with a single language for all coding jobs as a result.

The adoption of JavaScript as the only language for the entire technology stack makes it simpler for developers to perform initial development and later maintenance and updates.

Most importantly, JavaScript is already widely used in a plethora of apps and is widely regarded as a reliable web development language.

3. Prominent Developer Community

MERN stack has a sizable development community simply because it is a free and open-source technology that enjoys widespread support from developers throughout the world. React has the support of Facebook developers, and the other three technologies are well-liked, so the MERN stack benefits from constant inputs to address diverse development difficulties.

Developers working with React and NodeJS continue to assist with MERN projects on many reputable and well-known web forums. MERN became well-liked for finance app development due to its consistently available and constant community support.

4. Scalability-focused App Development

A crucial necessity for any fintech app development is ensuring scalability. Scalability is crucial because every financial app initiative begins small and gradually expands in terms of traffic footprint and business inquiries. The MERN stack suits this situation just fine.

The MERN stack enables the development of highly scalable and performance-rich solutions, which the financial sector demands. Most significantly, React’s front-end component-based architecture makes it simple to upgrade functionality and add value to MERN apps.

5. MVC Architecture

The MERN stack’s support for MVC design is another one of its technological advances. The business logic and the presentation layer of apps built on the MERN stack stay independent throughout the developing process due to the usage of MVC architecture.

The app’s front and back end run at their best because of this separation of logic. The MERN stack primarily finds a perfect fit for finance apps due to their high demand for speed and performance.

Why is the MERN stack preferred for start-up apps?

End-to-end development can be achieved with MERN’s full-stack development environment. Entrepreneurs no longer need to worry about other techs or tools because everything they need is included in the stack.

Top Examples of Apps built Using MERN stack

  • Discord
  • Netflix
  • Facebook
  • Dropbox

Is MERN stack good for the future?

As many apps now come with built-in JavaScript, MERN Stack is expected to be utilized significantly in the upcoming years. The most popular language can be used for both the front and back end, eliminating the requirement for context switching.

What are the latest trends in fintech?

The trends in technology that underpin financial services are essential to the growth of the FinTech sector. Here are some of the ongoing trends in fintech.

1. Digital Cards

Financial institutions gain significantly from using virtual cards, which reduce the need for actual cards, enhance productivity by optimizing other processes and speeding up payment processing, and safeguarding sensitive data from criminals.

2. Cloud Computing

The cloud supports open banking and the digitalization of the FinTech sector. The growth of financial cloud services is expected to exceed 24% yearly.

3. Biometric Authentication

Regular passwords and PINs are thought to be less secure than biometric authentication. Users believe biometric authentication is the best method of identity verification since they dislike using multiple passwords.

4. The Internet of Things

Connected wearables are beneficial for various FinTech functions, including replacing conventional point-of-sale (POS) systems with mobile POS systems and consumer pattern detection by financial firms.

What is the next big development in fintech?


Blockchain will concentrate on changing complexity and delivery timeframes with an increased emphasis on the payments segment, closely followed by securities and trade finance. This will increase the operational effectiveness of financial institutions.

Artificial Intelligence & Machine Learning:

Financial institutions’ approaches to regulatory compliance, financial fraud, and cybercrime have the potential to change due to AI and ML solutions.

Additionally, by using customer data for increased customization, fintech may keep providing goods and services suited to each customer’s requirements.


For all app projects that need to deliver extensible and quick app performance without spending thousands of dollars, the MERN stack has established a reputation as a tested and dependable technological stack over the years.

It makes sense why a growing number of finance app projects pick the MERN stack in their search for full-stack development that is affordable.


Author Bio: Suvarna Parikh is a technical content writer at ultroNeous Technologies – a leading web and mobile application development company that crafts user-centric digital products for brands of every size. She is passionate about writing on tech and marketing and balances informative content with an engaging read.