VOL. XCIV, NO. 247

Free Alternatives to Prospero.ai

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Free replacement verdicts

Free Alternatives to Prospero.ai

Zero-cost replacements grouped by fit, tradeoffs, pricing friction, and platform access. Use this list to test Prospero.ai before paying for another subscription.

Switching from Prospero.ai doesn't have to cost a thing. We've curated 3 free-tier alternatives that cover similar workflows, from Data Visualizations to Scores and beyond. Each pick below is framed by fit, caveats, and access friction so you can trial replacements without opening your wallet.

Visit Prospero.ai All alternatives Tool details

Disclosure: outbound links may include affiliate or sponsor links

Which Alternative Should You Use?

SentiSense

Closest replacement

Best for: Active investors and developers looking for market data, news clustering, social sentiment, institutional flow, insider trades, and AI analysis in one beta workspace.

SentiSense best matches the base workflow on AI research workspace, stock research, and market monitoring.
SentiSense also has a free plan, so you can try it without paying. Free-plan limits: Signup required. Free plan includes 1,000 API requests/month and limited market-intelligence access.

Watch for: Beta product with plan limits: Free and PRO quotas are now published, but the product remains young and users should verify endpoint-level access before depending on it in production.

Learn about SentiSense

Details Compare

EPSMomentum

Best workflow fit

Best for: Growth and momentum investors looking for earnings momentum, estimate revisions, PEAD drift, timing signals, scanners, dashboards, and AI analysis in one US stock/ETF platform.

EPSMomentum best matches the base workflow on AI research workspace, stock screening, and portfolio watchlists.
EPSMomentum also has a free plan, so you can try it without paying. Free-plan limits: Signup required. Bronze is advertised at $0/month.

Watch for: US stocks and ETFs focus: EPSMomentum is not positioned as a global multi-asset terminal or full portfolio accounting product.

Visit EPSMomentum

Details Compare

Stockoscope

Strong runner-up

Best for: Retail investors who want a guided workflow for business quality, peers, valuation, analyst sentiment, and ownership activity.

Stockoscope best matches the base workflow on stock research, stock screening, and charting and technical analysis.
Stockoscope also has a free plan, so you can try it without paying. Free-plan limits: Signup required. Every new account starts with a 14-day Pro trial without a credit card, then falls back to the permanent Free plan unless upgraded.

Watch for: U.S.-listed stock coverage: Coverage is limited to more than 3,000 U.S.-listed companies, including the S&P 1500 and the broader Russell 3000, rather than global equities or other asset classes.

Try Stockoscope Pro

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Detailed Alternatives

I want to

Pay lessFill a gapUpgrade overall

Free tiers first, then the lowest starting price.

Best workflow fit

EPSMomentum

Bottom line: Growth and momentum investors looking for earnings momentum, estimate revisions, PEAD drift, timing signals, scanners, dashboards, and AI analysis in one US stock/ETF platform.

Keep

Stock Ideas
Screeners
Data Visualizations
Watchlist
Market Sentiment
Dark Pool & Off-Exchange

Gain

Money Flow
Portfolio
News
News Sentiment

Lose

ETF Screeners
Options
Blogs
Newsletters

Watch out

Avoid as a full replacement if you rely on stock research and market monitoring.
Free-plan limits: Signup required. Bronze is advertised at $0/month. Silver is advertised at $9.99/month and Gold at $49.99/month, with yearly-plan discounts shown.
US stocks and ETFs focus: EPSMomentum is not positioned as a global multi-asset terminal or full portfolio accounting product.

Cost

Free with signup

$9.99/moto go paid

No comparable monthly price for Prospero.ai

Fit: Partial replacement

Visit EPSMomentum Compare

Full review and details

Partial replacement

Stockoscope

Bottom line: Retail investors who want a guided workflow for business quality, peers, valuation, analyst sentiment, and ownership activity.

Keep

Stock Ideas
Screeners
Data Visualizations
Watchlist
Scores

Gain

Stock Comparison
Financials
Valuation Models
Dividends

Lose

ETF Screeners
Options
Market Sentiment
Dark Pool & Off-Exchange

Watch out

Avoid as a full replacement if you rely on AI research workspace, market monitoring, and portfolio watchlists.
Free-plan limits: Signup required. Every new account starts with a 14-day Pro trial without a credit card, then falls back to the permanent Free plan unless upgraded. The public AAPL dashboard and one stock can be explored without an account.
U.S.-listed stock coverage: Coverage is limited to more than 3,000 U.S.-listed companies, including the S&P 1500 and the broader Russell 3000, rather than global equities or other asset classes.

Cost

Free with signup

$12.50/moto go paid, billed yearly

No comparable monthly price for Prospero.ai

Fit: Partial replacement

Try Stockoscope Pro Compare

Full review and details

Closest replacement

SentiSense

Bottom line: Active investors and developers looking for market data, news clustering, social sentiment, institutional flow, insider trades, and AI analysis in one beta workspace.

Keep

Stock Ideas
Screeners
Data Visualizations
Options
Watchlist
Market Sentiment

Gain

Quant
News
News Sentiment
Alerts

Lose

ETF Screeners
Dark Pool & Off-Exchange
Education
Blogs

Watch out

Avoid as a full replacement if you rely on stock screening and portfolio watchlists.
Free-plan limits: Signup required. Free plan includes 1,000 API requests/month and limited market-intelligence access. PRO is listed at $15/month or $144/year with unlimited monthly API and MCP calls at up to 300 requests per minute.
Beta product with plan limits: Free and PRO quotas are now published, but the product remains young and users should verify endpoint-level access before depending on it in production.

Cost

Free with signup

$15/moto go paid

No comparable monthly price for Prospero.ai

Fit: Partial replacement

Learn about SentiSense Compare

Full review and details

What This Shortlist Tells You

SentiSense is the closest drop-in replacement with overlapping coverage in Stock Ideas, Screeners, and Data Visualizations while adding Quant and News coverage and Market-intelligence hub combining market data, social sentiment, news clustering, and AI-generated analysis. and Classical stock-data layer includes real-time and historical stock prices, OHLCV charts, company fundamentals/profiles, analyst ratings and price targets, earnings calendar, short interest, float, short volume, and financial metrics. features (workflow overlap ~58%).

Every pick keeps a free tier; start with SentiSense, EPSMomentum, and Stockoscope to road-test Prospero.ai workflows without paying up front.

Round out your stack with new coverage areas like Quant, News, News Sentiment, and Alerts.

Prospero.ai still leads on ETF Screeners, Blogs, and Newsletters, so keep it handy for those workflows.

Coverage Snapshot

Where alternatives already align

Most shared categories across the top matches.

Data Visualizations×3 Scores×3 Screeners×3 Stock Ideas×3 Watchlist×3 Market Sentiment×2 Dark Pool & Off-Exchange×1 Education×1

New angles introduced

Categories the alternatives add beyond Prospero.ai.

Financials+3 News+3 AI Research+2 Analyst Ratings & Price Targets+2 Insider Data+2 Institutional Ownership+2 News Sentiment+2 Short Interest+2

Free Access & Pricing

Free to start

All 3

All 3 have a standing free tier, not a trial.

Paid plans from

$9.99/mo

EPSMomentum is the cheapest listed monthly upgrade. No comparable monthly price is listed for Prospero.ai.

Mobile app

1 of 3

1 have a mobile app, like Prospero.ai.

API access

2 of 3

2 expose an API or data feed, usually on a paid plan.

Hands-on tested

0 of 3

0 tested hands-on. 0 are analyst picks.

Coverage overlap

56%

Average share of Prospero.ai categories each alternative covers.

Free Alternatives FAQ

What are the best free alternatives to Prospero.ai?

SentiSense, EPSMomentum, and Stockoscope cover the most Prospero.ai workflows without a paid plan, in that order.

Do these picks stay permanently free?

Yes. Every tool listed has a standing free tier, not a trial. Expect caps on exports, seats, or history once you use it heavily.

Which Prospero.ai workflows stay covered on the free plan?

The free plans cover Stock Ideas, Screeners, Data Visualizations, Options, Watchlist, Market Sentiment, Scores, Dark Pool & Off-Exchange, and Education. Core Prospero.ai workflows in those areas do not need a paid upgrade.

What extra coverage do the free alternatives add?

The free alternatives add Quant, News, News Sentiment, Alerts, Calendar, Reddit, APIs & Data Feeds, Financials, Analyst Ratings & Price Targets, Insider Data, Institutional Ownership, Short Interest, US Government Trades, Regulatory Filings Monitoring, AI Research, Money Flow, Portfolio, Transcripts, AI Chat, Videos, Custom Dashboards, Stock Comparison, Valuation Models, Dividends, and Analyst Forecasts, which Prospero.ai does not cover.

Where might I still rely on Prospero.ai?

ETF Screeners, Dark Pool & Off-Exchange, Education, Blogs, Newsletters, Options, and Market Sentiment stay with Prospero.ai. Keep it for those tasks, or budget for a paid plan elsewhere if they matter.

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Feedback

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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.