Top 5 Investment Apps for Millennials in Japan

Published on:
2025-10-29
Erika S
|
Director
Top 5 Investment Apps for Millennials in Japan

In recent years, investing in Japan has become more accessible than ever, thanks to the rise of smartphones and the evolution of financial technology. What once required a trip to a securities company or a desktop trading platform can now be done from a single mobile app. For millennials who value convenience, speed, and control, investment apps have opened the door to more brilliant, more flexible wealth-building opportunities.

Whether you’re looking to grow your savings, start investing small, or explore global markets, there’s an app for every type of investor. Below, we’ll introduce the top investment apps in Japan that are especially popular among millennials.

Ranking of Popular Investment Apps

  1. SBI Securities App
  2. Rakuten Securities (iSPEED App)
  3. Matsui Securities App
  4. Monex Securities App
  5. PayPay Securities

1. SBI Securities App

Source: Official SBI Securities App Website

SBI Securities is one of Japan’s largest and most trusted brokers. Its investment app is known for its low fees, strong support for both Japanese and U.S. stocks, and a wealth of detailed market data. Users can access in-depth financial reports, charts, and real-time news updates, all from the app.

Why Millennials Love It:

  • Low-cost trading for Japanese and U.S. stocks
  • Great for active investors who trade frequently
  • Ideal for those who want to use both technical and fundamental analysis
  • Access to professional investment reports and timely news

Best For:

Millennials who want to make serious, low-cost investments in Japan and overseas markets.

2. Rakuten Securities (iSPEED App)

Source: Official SPEED Website

Rakuten Securities’ iSPEED app stands out for its user-friendly interface and intuitive navigation, making it perfect for beginners. A major perk is that users can earn and use Rakuten Points when trading or investing in mutual funds and ETFs. The platform supports a wide range of investment options, from Japanese stocks to global ETFs.

Why Millennials Love It:

  • Seamless integration with the Rakuten ecosystem
  • Earn Rakuten Points and use them for investing
  • Intuitive interface ideal for first-time investors
  • Access to mutual funds, ETFs, and stocks all in one place

Best For:

Those who already use Rakuten services and want to start investing efficiently while earning points.

3. Matsui Securities Stock App

Source: Official Matsui Securities Website

Matsui Securities offers one of the most cost-efficient trading systems in Japan; no commission fees for daily trading under ¥500,000. The app delivers real-time stock prices and a responsive interface, making it perfect for day traders and small-scale investors.

Why Millennials Love It:

  • Free trades under ¥500,000 per day
  • Great for frequent traders and short-term strategies
  • Comprehensive tools and live data for quick decision-making

Best For:

Millennials who want to practice day trading or invest small amounts without worrying about transaction fees.

4. Monex Securities App

Source: Official Monex Securities App Website

Monex Securities provides a comprehensive mobile experience that makes trading, asset tracking, and research both secure and efficient. The app supports stock trading, mutual funds, margin trading, and NISA accounts, as well as tools for asset management and market analysis.

Why Millennials Love It:

  • Fingerprint and Face ID login for secure, stress-free access
  • View detailed market data (domestic and global), exchange rates, and reports
  • Customizable dashboard with favorite stocks and indices
  • Integrated asset management tools like MONEX VISION and MONEX VIEW β
  • Easy access to IPOs, ETFs, mutual funds, and robo-advisor services like ON COMPASS

Best For:

Millennials who want a secure, full-featured trading app that balances convenience, research capability, and long-term asset management tools.

5. PayPay Securities

Source: Official PayPay Securities App Website

PayPay Securities is a mobile-first investment app designed for micro-investing. You can start buying U.S. stocks from just ¥1,000, and even use PayPay Points for trading. Its simple interface and clear visuals make it ideal for anyone who wants to start exploring overseas markets.

Why Millennials Love It:

  • Start investing in U.S. stocks from only ¥1,000
  • Use PayPay Points for investments
  • Simple and beginner-friendly app design
  • A great entry point for those curious about foreign stocks

Best For:

Millennials who use PayPay and want to invest in U.S. stocks easily and affordably.

Conclusion

For Japan’s millennials, investment apps have made wealth-building more accessible, flexible, and rewarding than ever before. Whether you prefer the low-cost, data-driven approach of SBI, the reward-based simplicity of Rakuten, the fee-free trading of Matsui, the micro-investing opportunities of PayPay, or the comprehensive features and security of Monex, there’s a platform tailored to your goals.

Each app offers a different path to investing, from starting small and learning the ropes to managing a diversified portfolio. The key is to choose the one that aligns with your lifestyle, trading style, and long-term ambitions.

By combining the convenience of mobile investing with consistent financial habits, millennials in Japan can take control of their financial futures, all from the palm of their hand.

Blog Writer
Erika S
Director
EN-JA bilingual project director with an extensive background in leading Japanese translation and localization projects.

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