Make sense of
SEC filings

AI summaries of 10-K, 10-Q and 8-K filings, a stock screener, and plain-English explanations of the metrics behind them. Educational, not investment advice.

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Educational Tools

Everything you need to learn

Signal Screener provides a comprehensive suite of tools designed to bridge the gap between theory and real-world application.

Flash Cards

Learn key investing concepts with visual educational content designed to make complex topics easy to understand.

Stock Screener

Build custom screeners with 30+ metrics including P/E ratios, RSI, MACD, ROE, and more to find opportunities.

SEC Filing Browser

Explore real 10-K, 10-Q, and 8-K filings from S&P 500 companies with AI-generated summaries to help you understand key information.

Daily Quiz

Test your investing knowledge with a new quiz every day. Track your progress over time and compete with yourself to improve.

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Support Information

Bug Reports

For urgent issues or bugs, please include detailed information about your device model and iOS version to help us troubleshoot faster.

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Free Resources

Guides and articles to help you on your investing education journey.

How to Become a Personal Finance Expert Without Expensive Training

Master stock market investing through self-education and the right tools—not costly courses.

Read Article →

Stock Picking Without Expensive Apps: The As-Needed Approach

Professional-grade stock screening without a year-round subscription: subscribe only for the weeks you research.

Read Article →

Important Information

  • Educational Purpose Only: This app is designed strictly for educational and informational purposes. It is a tool to help you learn about stock market concepts.
  • Data Delays: Market data provided in the app is primarily end-of-day (EOD) and may be delayed. It should not be used for real-time trading decisions.
  • No Investment Advice: Signal Screener does NOT provide investment advice, financial planning, or buy/sell recommendations.
  • Consult Professionals: Always consult a qualified financial advisor or tax professional before making any investment decisions.
  • Risk Warning: Past performance does not guarantee future results. Investing in the stock market involves risk, including the potential loss of principal.