App for Stock Market Investing in 2025: Complete Guide to Choosing the Best Platform

The investment landscape in Brazil is undergoing a transformation. With over 5 million new investors entering the market in 2024 and an expected growth of 20% in 2025, the demand for quality digital platforms has never been higher. Millennials and Gen Z are leading this movement, seeking apps that combine advanced technology, robust security, and user-friendly interfaces. Diversification into international markets and cryptocurrencies is also on the rise, reflecting the need for platforms that offer dollar accounts, real-time analysis, and modern financial education.

What to Consider When Choosing Your Investment App

Before downloading any app, it is essential to establish clear criteria. Certified security, transparent fee structures, and ease of use are just the beginning. The most competitive platforms now offer:

Integrated planning with financial goals – tools that assist in building long-term portfolios tailored to the investor’s profile.

Adaptive micro-moment education – short videos, quizzes, and gamified content that turn learning into practical investing.

Sustainable investment options – ESG portfolios for those who want to align gains with environmental and social responsibility.

AI technology for optimization – predictive systems that identify market trends and suggest strategic adjustments to the portfolio.

A good stock trading app functions as a reliable intermediary between you and your financial opportunities. It not only executes transactions but also educates, protects, and amplifies your results.

Mapping the Main Platforms of 2025

Mitrade: Global Technology and Demo Account

Mitrade stands out as an international platform with a strong presence in the Brazilian market. Its differentiator is the ability to practice on a demo account before investing real capital. International security awards reinforce its credibility. The app offers access to stocks, Bitcoin, forex, commodities, and ETFs with real-time charts. Rated 4.6 stars (on both marketplaces). For beginners to intermediates seeking risk-free learning, it is a robust option.

Rico: Youthful Language and Quality Education

Controlled by the XP Inc. group, Rico positions itself as an accessible broker for young people with lower purchasing power. Zero brokerage fees (except B3) and abundant educational material make up its appeal. Its relaxed language attracts beginner investors who prefer less formal platforms. Rated 4.4 stars, Rico offers stocks, government and private bonds, and investment funds.

Toro: Flexible Brokerage Model

Acquired by Banco Santander, Toro has gained institutional credibility. As a fintech, it prioritizes technology and security. Its differentiator is the variety of brokerage models – you choose between zero fees with profit sharing or traditional fixed fees. Extensive educational material is available for beginner to intermediate investors. Rated 4.4 stars.

XP Investimentos: Extensive Portfolio

XP’s rapid growth in recent years has marked its trajectory. It evolved from a specialist in large volumes to also serve individual investors. Its app for stock trading includes a simulator to compare investments and project gains before investing. Ideal for intermediates. R$4.90 fee for day trading and R$4.90 for swing trading on stocks/BDRs. Rated 4.6 stars.

Nubank – Nu Invest: Banking Integration

Nubank incorporated its brokerage through the acquisition of Easynvest, creating Nu Invest. Over a thousand products available (stocks, real estate funds, ETFs). The stock trading app offers an integrated account, secure mode, and Pix integration. Fee structure: zero on some products, but R$2.90 (day trade) and R$4.90 (swing trade) for stocks/BDRs. Rated 4.6 stars. Recommended for conservative profiles.

Banco Inter – Inter Invest: Simple Integrated Account

Inter offers an integrated app for its clients, with access to stocks and other assets. You need a digital bank account to access Inter Invest. Differentiator: zero brokerage (except B3 fees), quality educational material, and a simple interface. Rated 4.8 stars. Focused on micro-investors and beginners.

Avenue: International Investments

Platform specialized in foreign markets, offering a dollar checking account. Allows foreign currency transactions for those seeking offshore wealth growth. Robust anti-fraud system. Brokerage in dollars with additional costs. Rated 4.0 stars. Suitable for intermediates interested in SPACs and dollar cards.

Comparative Analysis of Platforms

Why Choice Matters Now

The Brazilian investment market is not only growing – it’s becoming more professional. Dozens of apps compete for your attention, each with a different proposition. Investing time in prior analysis before starting optimizes your financial results.

Brokerages compete on service quality, certified security, and innovation. International platforms like Mitrade bring global standards with Portuguese support. For those already investing, reviewing whether your app offers the mentioned differentiators – AI, adaptive education, dollar accounts – can lead to significant incremental gains.

The decision on which app to invest in the stock market should be made with reflection aligned to your profile: conservative beginner, growing intermediate, or experienced international investor. With this clarity, your investment journey in 2025 will be safer and more profitable.