How to Build a Stock Trading App Like eToro: A Complete Guide

According to Future Market Insights, the stock trading app market value stands at over $24 billion in 2026 and is expected to reach $161.8 billion by 2035.

The market is set to grow with a CAGR of 21.1% during the forecast period.

It’s growing because of real-time market access, mobile investing adoption, digital wealth management, and commission-light trading, creating new opportunities for fintech businesses to build a stock trading app like eToro.

However, crafting a trading app involves much more than adding buy and sell buttons.

Stock trading apps like eToro combine stock trading with real-time market data, portfolio management, social investing, copy trading, analytics, and secure financial transactions.

This is what fintech entrepreneurs and investors generally seek. However, behind these advanced features, there is a complex technology infrastructure that must also meet strict security and regulatory requirements.

But the question is: how to develop a stock trading app like eToro in 2026 that can outperform eToro in many aspects? Well, this guide walks you through the stock trading app development process, which includes everything from defining business models and choosing the right trading APIs to developing core features.

So let’s dive into it!

How to Build a Stock Trading App Like eToro?

Developing an online stock trading app requires a solid understanding of the development process, from defining the business model and target audience to testing, launching, and scaling the solution.

Building an app like eToro requires more than replicating its visible features. You will require the right trading infrastructure, an intuitive experience, and strong security from the start. Here are the 7 steps that a leading fintech app development services provider follows to build a reliable stock trading platform in 2026:

Step 1:Define Your Stock Trading App’s Business Model and Target Audience

At the very beginning, decide who your stock trading app’s target audience is. At the outset, determine the target audience; they can be beginners, active traders, long-term investors, or high-net-worth individuals. Define the markets and assets you want to support, like stocks, ETFs, or cryptocurrencies.

Apart from that, pick the right trading approach, revenue model, and geographic market. Decide whether social investing or copy trading will be part of your core offering during eToro app development.

Step 2:Choose the Right Trading APIs and Market Data Infrastructure

Ensure a solution that depends on reliable APIs for market data, order execution, account management, payments, and identity verification. As a decision-maker, you should choose brokerage and market data providers based on the markets and assets you plan to support.

The app’s backend must process real-time price updates, orders, portfolio changes, and account information efficiently. Picking the right market data infrastructure or using WebSockets for live data helps keep prices and trading information updated without refreshing the interface.

Step 3:Design a Simple and Intuitive Trading App Experience

UI/UX professionals design a simple and intuitive trading platform that engages users. For new investors, financial markets and trading interfaces can be difficult to navigate, so the app should organize market information, trading actions, and portfolio data in a clear and accessible way. The development team focuses on:

• Simple onboarding flow
• Searchable stock dashboard
• Watchlists
• Interactive charts
• Portfolio screen
• Clear buy or sell actions

Users like when they are able to check assets, review performance, place orders, and track results without unnecessary steps. So keeping the interface clear while making advanced tools available when needed is imperative.

Step 4:Develop the Core Features of Your Stock Trading App

This is the main development phase where stock trading app developers create essential trading functionality. The key features include

• User registration and KYC
• Stock search
• Real-time prices
• Watchlists
• Price alerts
• Buy and sell orders
• Portfolio management
• Deposits and withdrawals
• Transaction history
• Push notifications

The development team also crafts an admin panel to manage users, transactions, verification requests, reports, and platform activity. They craft these features around a reliable backend and properly integrated financial APIs.

Step 5:Add Copy Trading and Social Investment Features

Adding copy trading and social investment features is crucial to building a stock trading app like eToro. Copy trading can become a major differentiator to create an eToro-like experience. This step is so crucial for users because it allows them to discover investors through profiles, performance data, risk information, and trading history.

They can then choose traders to follow or copy based on their preferences. Such solutions support proportional trade replication, copy limits, risk controls, and notifications. Furthermore, social features like investor feeds, comments, and rankings encourage engagement.

Step 6:Implement Security, KYC/AML, and Trading Compliance

Integrating security or trading compliance is not a final-stage addition, but it must be taken care of in the initial stage itself. The development team initially focuses on compliance and security requirements. Identity verification and KYC checks, along with AML monitoring, are crucial. It protects accounts using encryption, multi-factor authentication, secure API access, and fraud detection.

This maintains detailed transaction and audit logs so activities can be reviewed when necessary. Talking about regulatory requirements, it’s crucial to choose the right one depending on the country, asset, and financial services your platform supports.

Step 7:Test, Launch, and Scale Your Stock Trading Platform

Once everything is done, it’s time to test the application to ensure everything is good to go. The QA team tests every critical part of the application like

• Order placement
• Payments
• Market data updates
• Authentication
• Portfolio calculations
• Third-party API integrations

The team performs security, load, and stress testing to identify problems before real users encounter them. When testing is done, the team deploys the application and monitors server performance, API health, failed transactions, and trading activity. With a growing user base, scale cloud infrastructure and backend services to handle higher trading volumes and market activity.

So this is the eToro stock trading app development process; now it’s time to learn about the features that must be added to the platform.

Stock Trading App Features You Must Integrate

It is important to integrate more than basic buy and sell features into your stock trading platform. Users mainly pick an application when they get fast market information, easy portfolio management, useful investment tools, and secure transactions. So craft functionality that provides several benefits and ease of use for users.

Here are the features that you should integrate when you build a stock trading app like eToro in 2026 and beyond:

• User Registration & KYC

Allows users to create accounts and complete identity verification digitally. The KYC here helps in verifying users during onboarding while supporting regulatory requirements before they can access trading services.

• Real-Time Market Data

Provides real-time stock prices, market movements, trading volumes, and other relevant information. This data helps users make better decisions and keeps their portfolio values updated.

• Stock Search & Discovery

Stock discovery makes it easy for users to find stocks by company name, ticker, sector, or market. Integrating categories and trending assets here helps users find out potential investment opportunities.

• Watchlist & Price Alerts

Allows users to save stocks they are interested in as well as receive alerts when prices reach specific levels. With this, users can seamlessly monitor better stock opportunities without constantly opening the application.

• Buy & Sell Orders

Buying and selling is one of the essential features of a stock investment app that provides a clear trading interface for placing buy and sell orders. This feature supports relevant order types, confirms transactions before execution, and displays important trade information.

• Interactive Trading Charts

The application should be integrated with interactive trading charts that help users understand price movements over different timeframes. This feature includes indicators and basic analysis tools to let users evaluate assets before placing orders.

• Portfolio Management

Enable users to have a clear view of their holdings, current values, returns, allocation, and performance. This is crucial because a well-designed portfolio screen makes it easier to track investment progress.

• Wallet, Deposits & Withdrawals

Wallets, deposits, and withdrawals allow users to fund their accounts and withdraw eligible funds securely. This feature provides reliable payment and banking infrastructure while clearly displaying balance and transaction status.

• Order & Transaction History

Through this feature, users can maintain a complete record of trades, deposits, withdrawals, and other account activities. Allows users to review transaction details like amounts, dates, and order status.

• Copy Trading

Helps users to automatically replicate selected investors’ trades based on their chosen amount or allocation. Moreover, it includes controls that let users manage, pause, or stop copied strategies.

• Social Trading

Social trading is also an imperative part of a stock investment app because it creates a social layer where users can follow investors, view market discussions, share insights, and interact with other traders. All of this happens without leaving the platform.

• Trader Profiles & Performance Rankings

Users can actually see investor profiles with relevant performance metrics, trading history, risk information, and other useful data. This helps them compare traders before deciding whom to follow or copy.

• Fractional Stock Trading

Let users buy portions of eligible stocks instead of requiring enough money for a full share. Fractional stock trading features basically make higher-priced assets more accessible to smaller investors.

• Push Notifications

Sends timely notifications about price movements, executed orders, deposits, withdrawals, portfolio changes, and account activity. It basically gives users control over which alerts they receive.

• AI-Powered Investment Insights

AI in stock trading can help users analyze market information, identify portfolio patterns, and receive personalized investment insights. You can also use AI to generate market summaries, detect relevant trends, assess portfolio risks, and provide timely alerts.

• Platform Control Center

Leads administrators to manage users, KYC requests, transactions, assets, reports, support requests, and platform activity. Role-based access can help keep sensitive administrative functions controlled.

So these are the key features that must be integrated when you build a stock trading app in 2026. However, there are some other advanced features like multi-asset trading, advanced portfolio analytics, security, and two-factor authentication that can be considered for secure trading platform development.

These features are created when the developers pick the right technology stack. Let’s study this in the next section.

Technology Stack for Stock Trading App Development

eToro app development requires a proper set of frameworks depending on the technology layer and business demand. The tech stack directly affects how quickly your trading app responds, processes orders, handles market ideas, and scales during high-volume periods.

A practical stack should cover the frontend, backend, database, real-time communication, cloud infrastructure, APIs, and security. However, the exact choices can vary based on your target market, asset classes, and trading features.

Compliance Requirements for a Stock Trading App

An online stock trading app deals with investments, financial transactions, and sensitive user information. This is why it’s essential to consider compliance and regulatory requirements from the initial phase of development.

The exact requirements depend on your target country, assets, and business model. Key areas to address include:

• Financial Licensing

This is usually the first wall you hit. Does your business need a brokerage or investment license in the country you’re targeting? A lot of founders try to skip this by routing trades through a third-party broker instead of becoming one. That can work, but only if the broker actually holds the right licenses; don’t just take their word for it- check.

• KYC and Identity Verification

Nobody should be placing trades before you know who they are. That means ID checks, proof of address, maybe more depending on the country. It’s not glamorous work, but skipping it is how apps end up getting shut down.

• AML and Transaction Monitoring

Once someone’s verified, you still need to watch what they’re doing. Weird transaction patterns, ties to sanctioned entities, money moving in ways that don’t match a normal user- your system should be able to flag that. Depending on your risk level, this could mean anything from basic transaction monitoring to full-blown sanctions screening.

• Data Privacy and Protection

An online stock trading app is basically a magnet for sensitive data: bank info, ID scans, income details, trading history. GDPR, CCPA, whatever applies to your users, follow it, and actually tell people what you’re doing with their data instead of burying it in a 40-page document nobody reads.

• Investor Protection and Disclosures

People are putting real money on the line through your app, so they deserve to know the risks, the fees, and what kind of service you’re actually giving them (execution-only? advisory?). If you’re marketing investment products, that content usually falls under stricter rules than a normal ad would.

• Transaction Records and Reporting

Every trade, deposit, and withdrawal needs a paper trail. This sounds obvious, but plenty of early-stage apps build this as an afterthought and then scramble when a regulator asks for records they can’t easily pull.

• Cybersecurity and Access Controls

Encryption, MFA, secure APIs, role-based access, fraud monitoring, audit logs – you need all of it, and not just on the app itself. Your backend is just as much of a target, sometimes more.

None of this is one-size-fits-all. Compliance for an online stock trading app looks pretty different depending on the country and business model, so before you launch, get real legal and compliance advice from people who know your specific market, not a checklist off the internet.

How Much Does It Cost to Build a Stock Trading App Like eToro?

The cost to develop a stock trading app like eToro typically ranges from $30,000 to $150,000+, depending on the app’s features, trading infrastructure, integrations, security requirements, and target market.

A basic MVP may cost significantly less, while advanced copy trading, multi-asset support, real-time data, AI, and regulatory infrastructure can push the budget much higher. Current industry estimates also place advanced eToro-like platforms in the $80,000–$150,000+ range.

Note: If you’re investing in a stock trading app like eToro for the first time, go for a minimum viable platform. An MVP solution is built with core features that help the investor to launch the app in the market and get feedback. Later, they can make customizations and invest more money as the business scales.

Now, before wrapping up this detailed guide on eToro-like stock trading app development, examine the revenue model of the business.

How Do Stock Trading Apps Like eToro Make Money?

Instead of relying solely on trading fees, a stock trading app generates revenue through multiple channels. However, it’s essential to choose the right monetization model as per asset classes, user base, and trading app development strategy.

Here are the 9 ways a stock trading app like eToro makes money in 2026:

1:Trading Commissions and Fees

eToro-like platforms charge users a fixed fee or percentage for specific transactions or services. With the application, although commission-free trading is common, fees can still contribute to revenue across selected assets, account services, or transaction types.

2:Bid-Ask Spreads

Spread is the difference between an asset’s buying and selling price. An online stock trading app can earn revenue through a markup within the spread, depending on its brokerage and execution model.

3:Subscription Plans

A premium tier can give paying users advanced charts, deeper research, portfolio analytics, or extra tools. Recurring subscriptions bring in steady revenue that doesn’t depend entirely on trading volume.

4:Copy Trading Fees

Copy trading opens up its own revenue options, premium access to certain strategies or fees tied to specific traders users follow. For businesses looking into eToro app development, this is often a key monetization lever alongside standard trading services.

5:Foreign Exchange and Conversion Fees

An online stock trading app serving international users usually needs to support multiple currencies. Conversion fees on deposits, withdrawals, or foreign-market trades can add up into a solid revenue stream.

6:Interest and Cash Management Revenue

Depending on account structure and local regulations, platforms can earn revenue from customer cash balances or cash-management products, an income stream that runs separately from trading activity.

7:Partner and Referral Revenue

A stock investment app can partner with financial service providers or investment products. Where permitted, these partnerships can bring in referral or revenue-sharing income for pointing users toward third-party services.

8:Premium Investment Tools

AI-driven insights, portfolio analysis, risk analytics, research reports, and personalized dashboards work well as paid features. Users get more value, and the platform gets another revenue line.

9:Securities Lending

Where legally permitted, a platform can earn revenue by lending eligible securities to other market participants. This requires solid disclosures, controls, and regulatory processes, so it tends to suit more mature platforms rather than early-stage ones.

Conclusion

Building a stock trading app like eToro requires more than replicating its interface. You need reliable trading APIs, real-time market data, intuitive stock trading app features, strong security, regulatory compliance, and a scalable backend.

From defining your business model to adding copy trading and advanced investment tools, every development decision affects the final product and stock trading app development cost.

That’s where the right technology partner can make a difference. Apptunix, a leading fintech app development company, brings fintech expertise and end-to-end stock investment app development capabilities to help businesses turn trading ideas into secure, scalable, market-ready platforms.

Ready to build your trading app? Let’s make it happen.