Best Stock Trading App Guide by Top Stock Trading App Developers

This is a comprehensive guide to build the best stock trading app by top stock trading app developers, Archisys. 

Creating a stock trading app isn’t just about hiring a mobile app development company and asking them to build one for you. It’s a meticulous task that requires the understanding of the current industry, its traders and the ability to plan things accordingly.

People often think that a stock trading app is all about real-time stock market data and usability. But that isn’t all. 

A lot of new traders as well as old-school traders (who never really paper traded in the past) usually undermine the importance of paper trading.This is because they think that if the objective of trading the financial market is to make money, then surely trading a live account is the way to go because you can never make money just by paper trading.

But with the education you gain through paper trading, you can make more money by starting your trading career with paper trading only. It is important for me to shed some light on the importance of paper trading to let you know why THE BEST STOCK TRADING APP SHOULD HAVE PAPER TRADING.

According to statistics shared by Statista, the online stock trading industry has found a very strong user base in the Millennials age group.

Millennials have already started focusing on investing rather than saving and GenZ is to follow. But since they love to gain insights and information first, they would want a space to learn the trade and the tricks of that trade as well. If your stock trading app or platform offers them the learning curve, they will definitely rely on your system to make their investments. 

This is why you need to know;

What is Paper Trading?

Paper trading is a stock market term that was initially used to describe investors who wanted to practice would write their investments on paper and follow the market movements.

Trading markets attract many new traders, some of whom are veterans whilst others with the intent to make shorter term trades. The only thing that is common between all of them is the hesitation and  fear of losing money from trading.

Although trading will always have its risks, brokers offer a variety of tools to help first time traders to improve their trading skills. One of them is called “paper trading”, although you are less likely to hear the term, since in the online trading industry it is commonly called trading on a demo account.

Over the years, stock market simulators have allowed investors to practice stock trading, without putting real money on the line. This has given investors the chance to determine how their trading strategies would fare in a live market.

With technological advances in the past few years, investors can now easily practice their trading skills and test their strategies in order to establish their viability. This provides traders the advantage of knowing how their trading strategies would have performed in real time.

The other benefit of  paper trading through stock market simulation is to help users to fully adapt to your online stock trading platform. This ensures they can easily navigate and understand the numerous innovative types of features and tools available on your stock trading platform.

Advantages of Paper trading for investors

  • They gain the initial experience required.
  • They won’t have to use real capital, which means there is zero risk.
  • It gives your users the opportunity to build a trading plan using their own market experience.
  • They can have a collection of tried and tested strategies.
  • There is plenty of room for failure – and learning.
  • It eliminates the stress and other psychological factors, such as greed, from trading.
  • It builds confidence to trade on live markets
  • Users gain plenty of experience in preparation, trading and analysis
  • Even seasoned traders who might have lost their touch can come and practice to understand how the current market works and start working on it again.

Since we know the importance of Paper Trading, let’s come to the most awaited segment of today, i.e. Stock Trading.

How investing and stock trading apps work

In principle, the stock market is all about proper ways and patterns of money handling: storing, borrowing, lending, investing, spending, storing or even protecting it. 

The technology only aims at giving assistance to people in managing their financial operations more efficiently. 

Investing and stock trading apps are tools that provide permanent access to the market. Consequently, a user can monitor market activity changes, get real-time stock quotes and more.

Stock trading apps are now primarily being built and run for Millennials to start investing. This is because they are more likely to be aware of innovative technologies than the ones from the previous generations. 

It means that Millennials hold a prominent position on the market since Gen Xers and Baby Boomers are comparatively less interested in finding out new opportunities emerging in the IT world.

Another thing is that fintech just does not address Gen Xers and Baby Boomers’ problems because unlike Millennials, they are not used to relying on their handheld devices when completing everyday tasks. 

The good thing about this is that stock trading apps are able to draw young people’s attention to financing. 

While traditional brokerages keep taking fees on a regular basis from investors and traders even today, these mobile applications let customers drive trades and make investments without charging them for each transaction. 

Best online stock trading features

Sign in and sign up process

The authorization process has to be extremely easy and non-burdening for the users. This is why you should offer users multiple options. This way, you will be able to ensure that their experience is safe. 

User profile 

Users should be given the option to save their personal information and preferences related to notifications or simply the frequency in which they want their account to get debited. 

Putting trades on stocks 

The one obvious feature that should be added in your stock trading app development process is giving the users the functionality to execute orders and monitor their flow of funds. 

Real-Time portfolios 

Nothing is deemed more beneficial than real-time updates when your users invest in the best stock trading app, through their time and money. 

Users should be able to view their portfolios in real-time with ease while being timely updated to give them a very clear idea of where they stand investment-wise. 


The investors should be able to see the status of their deposits in real-time with minimal efforts. 


To be the best stock trading app, the users in your mobile application should be given the option to search for active stocks and their present rate in the market on a real-time basis. 


The stock market traders would appreciate the opportunity to look at the statistics and analyze the end result of their trades, transactions, etc. This is quite an important part for serious investors. 

Push Notifications

Another must-have part of your stock trading app development process would be to integrate push notifications. Push notification will let your users know of how their stocks have moved, but they should be timed in a way that they are not bothersome for the busy investors. 

Now when you are familiar with the stock trading app market and the feature set that it comes with, it is time to figure out your buyer personas. Knowing who you are developing the app for can be a real game-changer when you are creating the best stock trading app.

Having worked on a number of stock trading applications over the years, we understand the people who are most likely to use an online stock trading application. 

Best stock trading app development process

Let’s see how to build the best stock trading app. Take the following steps:

Initiate the project

Hire an expert mobile app development company with a project manager (PM), an experienced software architect, and a team of business analysts (BAs) with the experience of working in the financial services industry. This project will need enough research, reasoning and modifications. Therefore, the mobile app development company should be using the Agile methodology.

Begin planning for your “Minimum Viable Product” (MVP), which involves the following:

  • Conducting market research to gain insights;
  • Arranging discovery sessions to understand what your customers want and what “value” means for them;
  • Using market research and design thinking to prioritize features for your MVP and the overall app.

Finalize the project scope

The bare minimum of a stock trading app would be a web app, an Android app, and an iOS app. You will have to cover all the three aspects and primarily in English.

You can read the rest of the process in our blog How to make an app in 10 easy steps – Step by step process that will let you know about the planning needed to build an app. But while reading the referred article, do keep in mind that developing the best stock trading app will not be that easy.

Secure your app

Security is a high-priority consideration for you when building a stock trading app since it will process sensitive information and the sector is governed by stringent regulations. Do the following:

  • Proactively mitigate application security risks like injection, XML external entities (XXE), cross-site scripting (XSS), etc. 
  • Use cloud computing judiciously, e.g., you might need to use a hybrid cloud deployment.
  • Incorporate modern techniques and tools like multi-factor authentication (MFA), bank-grade encryption, next-generation firewalls, etc.
  • Use real-time threat intelligence to remain on top of cybersecurity threats.
  • Secure your “application programming interfaces” (APIs).
  • Hire ethical hackers to perform pentesting in order to make sure that the team you have hired has done a good job at securing your app. Know the importance of Penetration testing by reading What is Penetration Testing? Types, stages and tools for pen test

The complete stock trading app development team

You need to find a mobile app development company with an effective team consisting of:

  • UI designers
  • js developers for web development
  • Android developers
  • Swift developers for iOS development.
  • Testers
  • DevOps engineers

Such a team works as follows:

  • A “Product owner” provides requirements in a document named the “Product Backlog”, and the team estimates them.
  • The team works with the business stakeholders to schedule the requirements in “Sprints”, i.e., iterations, and this process is called “Sprint planning”.
  • Scrum teams are empowered, and they hold “Daily stand-up meetings” to discuss the project status.
  • They receive approval for a sprint in a “Sprint review meeting” where they demonstrate the app.

Professional mobile app development companies use a modern PM tool like Jira to manage this team. This isn’t just building a mobile application. They are to build you an entire platform that would be future ready as well.

DO NOT forget to sign-up for 3rd party APIs 

Your core features are trading-related, and while you must provide market data in your app, that’s not your core feature. I recommend that you use a reliable 3rd party API solution to access market data like Xignite.

Their “Financial Data APIs” offer information about stock quotes, ETFs, mutual funds, indices, company fundamentals, earnings & news, etc. Xignite claims to offer high-quality data covering global markets, moreover, it claims that its APIs are highly scalable.

While you should offer the push notifications feature for improving user engagement, it’s not a core feature. Therefore, you should use a 3rd party bulk-SMS API solution to implement this, like Twilio instead to make things simple by using their “Programmable SMS” feature.

Develop APIs to implement the core features

Trading-related features will be the core features in your app. Design and develop APIs to implement these features, which will enable you to use the full range of your business capabilities. 

User interfaces (UI) and User experience (UX)

You need to offer simple yet effective UIs to your app users. Your UI/UX designer should have read the market research and through their years of experience in designing for stock trading need to have their eye for detail and skill to turn the needs of the users into a simple and holistic design.

Develop, test, and deploy your app

These processes have been quite nicely elaborated in the shared article about the application testing.

How will users use your stock trading app

The first thing they will have to do is to link their bank account. Then they will have to set up a one-time transfer or periodic deposits into your account.  

They can use the Search option for trading a specific stock or for keeping it in the watchlist.

Once the stock and its current trade come up on the screen, they can choose to buy it which in turn takes them to the page they would actually have to buy the stock off of in case they need it. The selling option works the same way as well.


Although Archisys is now an award-winning mobile app development company, its 10 year old journey began with creating a fintech application for a stock trading company in Gujarat,India.

When you work with an experienced company such as ours, you need not worry about the technicalities of the development processes while discussing your ideas. As your technology partners, we will not only create the application for you but also take care of it in the future as well as and when necessary.

The decision is definitely yours to make but  I would suggest consulting with us at Archisys. We will help you with finding the best solution for you based on your requirement and budget. 

Do not worry, even though we are India’s one of the best stock trading app developers we still prefer providing the first two consultations for free!

Interesting Reads

The $8.3 billion stock trading startup fumbled into the financial crisis — and is now winning it.

Millions of investors who had never even opened an account are now piling into the market.

In June 2020, a raft of small cap stocks soared by hundreds of millions of dollars in value in recent weeks as frenzied retail traders piled in to a blistering stocks rally.

Is Robinhood making money off those day-trading millennials? Well, yes. That’s kind of the point.

Stock trading through DSE mobile app continued to rise on the Dhaka Stock Exchange as the number of active users of the digital application exceeded 53000-mark. The number of active users of the application increased to 53,254 as of March 25 this year from that of around 51,199 three months ago on January 1, according to DSE statistics.

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