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Live community ranking · Top 3 polygon.io tools

Best tools powered by Polygon.io

The tools powered by Polygon.io that investors trust most, ranked by the people who actually use them.

Every platform here leans on Polygon.io data. We score 3 vetted implementations inside a directory of more than 361 investing tools, so the products investors trust for reliable feeds, support, and licensing rise to the top.

Community-ranked · Live vote totals · Not financial advice

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Top 3 picks

3 picks
  1. 1
    Koyfin logo
    Top pick
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    Koyfin is a modern web and mobile financial terminal for investors, analysts, and advisors who want dashboards, charts, screeners, portfolios, news, alerts, transcripts, and market data without using a traditional desktop terminal. It is strongest for building custom research workspaces across equities, ETFs, funds, macro data, FX, commodities, crypto, yield curves, and advisor reporting. Free access is useful for trialing the workflow, while paid and Advisor tiers unlock more dashboards, screens, history, alerts, reporting, integrations, and client-portfolio features. It does not offer a public API.

    Best forInvestment research workspace · Stock screening · Charting · Portfolio analytics · Market monitoring
    Watch-outsNo public APISome downloads are vendor-restricted
    0Data partner votes
    Free with signup
    Pricing Free • From $39/moPlatforms
  2. 2

    Stock Analysis is a web and mobile research hub for investors who want stock screeners, financial statements, earnings calendars, market news, charts, analyst forecasts, watchlists, and portfolio tracking in one approachable workspace. It is strongest as an everyday due-diligence layer for researching public companies, ETFs, mutual funds, IPOs, dividends, corporate actions, and market movers without needing a professional terminal. Free access is useful but ad-supported and limited; Pro and Unlimited add broader history, saved screeners, alerts, exports, full ETF holdings, broker sync, advanced analyst filtering, and higher watchlist or download limits. It is not a broker, advisory service, portfolio accounting system, public API, custom quant platform, or data redistribution source.

    Best forStock research · Stock screening · Portfolio tracking · Charting · Fundamental research
    Watch-outsNo public APIFree access has ads and data limits
    0Data partner votes
    Free, no signup
    Pricing Free • From $79/yrPlatforms
  3. 3

    SentiSense is a beta AI market-intelligence and data API platform for investors and developers who want stock data, sentiment, news clustering, social signals, institutional flows, insider trades, congressional trading disclosures, and AI-generated insights in one workflow. It serves as a signal layer for research, not as a broker or adviser.

    Best forAI research workspace · Market monitoring · Financial data API · Stock research · Insider and institutional tracking
    Watch-outsBeta product with plan limitsCoverage claims need caution
    0Data partner votes
    Free with signup
    Pricing Free • From $15/moPlatforms

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About Me

Hey! Thanks for stopping by. I'm an independent investor with a soft spot for coding and the stock market - especially value investing (as you can probably tell from the tools I've collected here, haha). Hopefully you'll find something useful or interesting along the way.

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Starred Tools

These are my top picks. Tools I've tested thoroughly and found to be excellent. They do their job really well, and I use them a lot. If you're not already familiar with them, I highly recommend checking them out.

Tested Tools

These are tools I've tried and found to be solid, but not standout. Think of them as passing an initial quality screen: worth exploring, though not all will be exceptional.

Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.