VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 19, 2025

View KoyfinView Prospero.ai Home My Collections

Head-to-head

Koyfin vs Prospero.ai comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

Koyfin adds News, Calendar, Financials, Transcripts, ETF Overview, ETF Performance, ETF Holdings, ETF Overlap, ETF Fundamentals, ETF Valuation, Portfolio, Short Interest, and Dividends coverage that Prospero.ai skips.

Prospero.ai includes Stock Ideas, Options & Derivatives, Market Sentiment, Dark Pool & Off-Exchange, Scores, Education, Blogs, and Newsletters categories that Koyfin omits.

Koyfin highlights: Plan tiers: Free, Plus ($39/mo), Premium ($79/mo), Advisor Core ($209/mo), and Advisor Pro ($299/mo), with a published plan comparison., Global equities coverage with prices, financial statements, valuation, analyst estimates, filings, news, and transcripts. US quotes are live or 15-minute delayed, Canadian quotes are 15-minute delayed, and most international markets are end-of-day., and Stock Screener covering ~100,000 global equities with nearly 6,000 filter criteria. Results can be saved to watchlists or exported to CSV, though some data exports are restricted..

Prospero.ai is known for: Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity)., Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation)., and Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term)..

Koyfin logo

Koyfin

koyfin.com

Editor’s pick Hands-on review

Global market analytics platform combining screeners, financials, charting, news, and portfolio tools. US equity data is a mix of live and 15-minute delayed quotes, Canada is delayed 15 minutes, and other markets are end-of-day. CSV exports are available, but certain fields such as detailed financials and analyst estimates are restricted. Advisor plans add client portfolio management, custodian integrations, and professional reporting. Options functionality is announced but not yet live.

Platforms

Web
Mobile

Pricing

Free
Subscription

Quick highlights

  • Plan tiers: Free, Plus ($39/mo), Premium ($79/mo), Advisor Core ($209/mo), and Advisor Pro ($299/mo), with a published plan comparison.
  • Global equities coverage with prices, financial statements, valuation, analyst estimates, filings, news, and transcripts. US quotes are live or 15-minute delayed, Canadian quotes are 15-minute delayed, and most international markets are end-of-day.
  • Stock Screener covering ~100,000 global equities with nearly 6,000 filter criteria. Results can be saved to watchlists or exported to CSV, though some data exports are restricted.
  • Custom Formulas & Calculations for table columns. Limits vary by plan: Free (1), Plus (up to 10), Premium (unlimited).
  • Mobile apps for iOS and Android with synced watchlists, price alerts, and access to core features.

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Prospero.ai logo

Prospero.ai

prospero.ai

Mobile-first AI signals app for U.S. stocks & ETFs. Offers 10 proprietary signals (5 short-term: Net Options Sentiment, Net Social Sentiment, Net Institutional Flow, Dark Pool, Short Pressure; 5 long-term: Upside/Downside Breakout, Profitability, Growth, Market Similarity), plus a Daily Screener, ‘Our Picks’, watchlists, and notifications. No broker sync, public API, or advanced options greeks/IV surfaces are documented.

Platforms

Mobile

Pricing

Free

Quick highlights

  • Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity).
  • Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation).
  • Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term).
  • Mobile apps on iOS and Android with watchlists and in‑app notifications.
  • Education hub with plain‑English signal docs plus investing/trading newsletters (Substack).

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Overlap

Shared focus areas

5 overlaps

Mutual strengths include Screeners, ETF Screeners, and Data Visualizations plus 2 more areas.

Where they differ

Koyfin

Distinct strengths include:

News
Calendar
Financials
Transcripts
ETF Overview
ETF Performance
ETF Holdings
ETF Overlap
  • Plan tiers: Free, Plus ($39/mo), Premium ($79/mo), Advisor Core ($209/mo), and Advisor Pro ($299/mo), with a published plan comparison.
  • Global equities coverage with prices, financial statements, valuation, analyst estimates, filings, news, and transcripts. US quotes are live or 15-minute delayed, Canadian quotes are 15-minute delayed, and most international markets are end-of-day.
  • Stock Screener covering ~100,000 global equities with nearly 6,000 filter criteria. Results can be saved to watchlists or exported to CSV, though some data exports are restricted.
  • Custom Formulas & Calculations for table columns. Limits vary by plan: Free (1), Plus (up to 10), Premium (unlimited).

Prospero.ai

Distinct strengths include:

Stock Ideas
Options & Derivatives
Market Sentiment
Dark Pool & Off-Exchange
Scores
Education
Blogs
Newsletters
  • Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity).
  • Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation).
  • Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term).
  • Mobile apps on iOS and Android with watchlists and in‑app notifications.

Feature-by-feature breakdown

AttributeKoyfinProspero.ai
Categories

Which research workflows each platform targets

Shared: Screeners, ETF Screeners, Data Visualizations, Alerts, Watchlist

Unique: News, Calendar, Financials, Transcripts, ETF Overview, ETF Performance, ETF Holdings, ETF Overlap, ETF Fundamentals, ETF Valuation, Portfolio, Short Interest, Dividends

Shared: Screeners, ETF Screeners, Data Visualizations, Alerts, Watchlist

Unique: Stock Ideas, Options & Derivatives, Market Sentiment, Dark Pool & Off-Exchange, Scores, Education, Blogs, Newsletters

Asset types

Supported asset classes and universes

Stocks, ETFs, Mutual Funds, Closed-End Funds, Bonds, Commodities, Currencies, Cryptos

Stocks, ETFs

Experience levels

Who each product is built for

Beginner, Intermediate, Advanced

Beginner, Intermediate

Platforms

Where you can access the product

Web, Mobile

Mobile

Pricing

High-level pricing models

Free, Subscription

Free

Key features

Core capabilities called out by each vendor

Unique

  • Plan tiers: Free, Plus ($39/mo), Premium ($79/mo), Advisor Core ($209/mo), and Advisor Pro ($299/mo), with a published plan comparison.
  • Global equities coverage with prices, financial statements, valuation, analyst estimates, filings, news, and transcripts. US quotes are live or 15-minute delayed, Canadian quotes are 15-minute delayed, and most international markets are end-of-day.
  • Stock Screener covering ~100,000 global equities with nearly 6,000 filter criteria. Results can be saved to watchlists or exported to CSV, though some data exports are restricted.
  • Custom Formulas & Calculations for table columns. Limits vary by plan: Free (1), Plus (up to 10), Premium (unlimited).
  • Mobile apps for iOS and Android with synced watchlists, price alerts, and access to core features.
  • Portfolio and Model Portfolios with analytics including performance, drawdown, beta, and correlations. Advisor plans include client-ready PDF reports with tiered monthly limits.

Unique

  • Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity).
  • Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation).
  • Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term).
  • Mobile apps on iOS and Android with watchlists and in‑app notifications.
  • Education hub with plain‑English signal docs plus investing/trading newsletters (Substack).
Tested

Verified by hands-on testing inside Find My Moat

Yes

Not yet

Editor pick

Featured inside curated shortlists

Highlighted

Standard listing

Frequently Asked Questions

Which workflows do Koyfin and Prospero.ai both support?

Both platforms cover Screeners, ETF Screeners, Data Visualizations, Alerts, and Watchlist workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do Koyfin and Prospero.ai require subscriptions?

Both Koyfin and Prospero.ai keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access Koyfin and Prospero.ai?

Both Koyfin and Prospero.ai support web and mobile access, making it easy to keep tabs on research away from the desk.

What unique strengths set the two platforms apart?

Koyfin differentiates itself with Plan tiers: Free, Plus ($39/mo), Premium ($79/mo), Advisor Core ($209/mo), and Advisor Pro ($299/mo), with a published plan comparison., Global equities coverage with prices, financial statements, valuation, analyst estimates, filings, news, and transcripts. US quotes are live or 15-minute delayed, Canadian quotes are 15-minute delayed, and most international markets are end-of-day., and Stock Screener covering ~100,000 global equities with nearly 6,000 filter criteria. Results can be saved to watchlists or exported to CSV, though some data exports are restricted., whereas Prospero.ai stands out for Ten proprietary signals: 5 short-term (Options/Social/Institutional/Dark Pool/Short Pressure) and 5 long-term (Upside/Downside Breakout, Profitability, Growth, Market Similarity)., Short-term Net Options Sentiment updates ~every 2–5 minutes (real‑time orientation)., and Daily Screener & ‘Our Picks’ lists to surface candidates quickly for different horizons (long/short, short‑term/long‑term)..

Keep exploring

Stay on top of related tools

Browse the categories and profiles that overlap most with this comparison to round out your shortlist.

Recommended tools

These profiles share overlapping coverage with both sides of this matchup.

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.