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Alternatives to Uncle Stock

Curated replacements grouped by fit, tradeoffs, pricing flexibility, and platform access. Use this list to decide which Uncle Stock competitor is worth testing first.

Looking for a Uncle Stock replacement? We've profiled 5 alternatives by workflow fit, pricing flexibility, caveats, and platform access. Whether you need a free option to trial, mobile-ready workflows, or API integrations, this list helps you choose what to test first.

Visit Uncle StockFree alternativesTool details

Disclosure: outbound links may include affiliate or sponsor links

Which Alternative Should You Use?

Portfolio123 logo

Portfolio123

Closest replacement

Best for: Rules-based investors looking for point-in-time stock and ETF simulations.

  • Portfolio123 best matches the base workflow on strategy backtesting, fundamental research, and financial data API.
  • Portfolio123 also has a free plan, so you can try it without paying. Free-plan limits: Signup required. Free Manage module is separate from paid Research, API, and DataMiner access.

Watch for: Advanced research is paid: Free Manage covers portfolio tracking. Time-limited access covers screener and backtesting use before a paid Research plan, while API and DataMiner require separate paid access.

Try Portfolio123
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FactorsToday logo

FactorsToday

Best workflow fit

Best for: Quantitative researchers studying factor returns, stock loadings, correlations, and attribution.

  • FactorsToday best matches the base workflow on stock screening, strategy backtesting, and fundamental research.
  • FactorsToday also has a free plan, so you can try it without paying. Free-plan limits: Public dashboards and API documentation can be opened without signing in.

Watch for: Pricing not published: The site exposes public tools and a no-key API but publishes no long-term access or commercial pricing policy.

Open FactorsToday API docs
DetailsCompare
Validea logo

Validea

Best audience fit

Best for: Investors who want stock and ETF portfolios, screens, and reports based on published guru and academic factor models.

  • Validea best matches the base workflow on stock screening, strategy backtesting, and fundamental research.
  • Validea also has a free plan, so you can try it without paying. Free-plan limits: Public pages include a weekly email newsletter and limited screen and portfolio results.

Watch for: Model returns are not live account returns: Validea states model returns do not reflect actual trading and may include backtested and live model performance.

Explore Validea research
DetailsCompare
Stockopedia logo

Stockopedia

Strong runner-up

Best for: DIY stock investors looking for systematic Quality, Value, and Momentum ranks with broad regional coverage.

  • Stockopedia best matches the base workflow on stock screening, fundamental research, and charting and technical analysis.
  • Stockopedia shares Subscription pricing with the base tool.

Watch for: Subscription-only product: Stockopedia is paid after the free trial and pricing depends on regional market access.

Try Stockopedia
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Detailed Alternatives

I want to

Our ranked order by workflow overlap and quality.

1
Portfolio123 logo
Closest replacement

Portfolio123

Analyst pickTested by us

Bottom line: Rules-based investors looking for point-in-time stock and ETF simulations.

Keep

  • Screeners
  • Backtesting
  • Data Visualizations
  • Financials
  • Valuation Models
  • Scores

Gain

  • Quant
  • Stock Ideas
  • Correlation
  • Factor Exposure

Lose

  • Institutional Ownership
  • Alerts
  • Cryptos coverage

Watch out

  • Avoid as a full replacement if you rely on global stock screening, stock screening, and AI agent data access.
  • Free-plan limits: Signup required. Free Manage module is separate from paid Research, API, and DataMiner access. General registration offers 30 days of screener and backtesting access without a payment card.
  • Advanced research is paid: Free Manage covers portfolio tracking. Time-limited access covers screener and backtesting use before a paid Research plan, while API and DataMiner require separate paid access.
Cost
Free with signup

$25/moto go paid, billed yearly

$14.17/mo more than Uncle Stock

Fit
Drop-in replacement
Try Portfolio123Compare
Full review and details
2
Validea logo
Best audience fit

Validea

Bottom line: Investors who want stock and ETF portfolios, screens, and reports based on published guru and academic factor models.

Keep

  • Screeners
  • Backtesting
  • Financials
  • Valuation Models
  • Scores
  • Portfolio

Gain

  • Stock Ideas
  • ETF Screeners
  • Quant
  • ETF Analysis

Lose

  • Data Visualizations
  • Institutional Ownership
  • Watchlist
  • APIs & Data Feeds

Watch out

  • Avoid as a full replacement if you rely on global stock screening, financial data API, and AI agent data access.
  • Free-plan limits: Public pages include a weekly email newsletter and limited screen and portfolio results. The site limits monthly page views before requiring a trial or paid subscription. Standard and Pro include a seven-day free trial.
  • Model returns are not live account returns: Validea states model returns do not reflect actual trading and may include backtested and live model performance.
Cost
Free, no signup

$22.50/moto go paid, billed yearly

$11.67/mo more than Uncle Stock

Fit
Partial replacement
Explore Validea researchCompare
Full review and details
3
FactorsToday logo
Best workflow fit

FactorsToday

Bottom line: Quantitative researchers studying factor returns, stock loadings, correlations, and attribution.

Keep

  • Screeners
  • Backtesting
  • Data Visualizations
  • Portfolio
  • APIs & Data Feeds

Gain

  • Quant
  • Stock Comparison
  • Factor Exposure
  • Performance Attribution

Lose

  • Financials
  • Valuation Models
  • Scores
  • Institutional Ownership

Watch out

  • Avoid as a full replacement if you rely on global stock screening, news and alerts, and macro and fund research.
  • Free-plan limits: Public dashboards and API documentation can be opened without signing in. The API does not currently require a key and is limited to ten requests per second per IP address. No paid pricing table or durable free-access commitment is published.
  • Pricing not published: The site exposes public tools and a no-key API but publishes no long-term access or commercial pricing policy.
Cost
Free, no signup

Free onlyno paid tier

$10.83/mo less than Uncle Stock

Fit
Partial replacement
Open FactorsToday API docsCompare
Full review and details
4
Stockopedia logo
StockopediaPartial replacement
4
Stockopedia logo
Partial replacement

Stockopedia

Analyst pickTested by us

Bottom line: DIY stock investors looking for systematic Quality, Value, and Momentum ranks with broad regional coverage.

Keep

  • Screeners
  • Data Visualizations
  • Financials
  • Scores
  • Watchlist
  • Portfolio

Gain

  • Stock Ideas
  • Checklist
  • Analyst Forecasts
  • Analyst Ratings & Price Targets

Lose

  • Backtesting
  • Valuation Models
  • Institutional Ownership
  • APIs & Data Feeds

Watch out

  • Avoid as a full replacement if you rely on global stock screening, strategy backtesting, and financial data API.
  • Free-plan limits: Signup required. Credit card required. Trial-only access.
  • Subscription-only product: Stockopedia is paid after the free trial and pricing depends on regional market access.
Cost
Free trial only

Subscription

Fit
Partial replacement
Try StockopediaCompare
Full review and details
5
QuantConnect logo
QuantConnectPartial replacement
5
QuantConnect logo
Partial replacement

QuantConnect

Bottom line: Quants and systematic traders looking for an end-to-end research, backtesting, cloud deployment, and live-trading workflow on LEAN.

Keep

  • Backtesting
  • APIs & Data Feeds

Gain

  • Quant
  • Paper Trading
  • Auto-Trading & Bots
  • Options

Lose

  • Screeners
  • Data Visualizations
  • Financials
  • Valuation Models

Watch out

  • Avoid as a full replacement if you rely on global stock screening, stock screening, and fundamental research.
  • Free-plan limits: Signup required. Free tier includes one free backtest node and one free research node according to QuantConnect tier documentation. Paid pricing depends on the selected organization tier, seats, compute nodes, data, and support.
  • Plan and add-on complexity: Backtest/live nodes, data resolution, users, notifications, and hosted data features vary by organization tier and add-ons.
Cost
Free with signup

Free • Contact for pricing

Fit
Partial replacement
Compare QuantConnect plansCompare
Full review and details

What This Shortlist Tells You

Portfolio123 is the closest drop-in replacement with overlapping coverage in Screeners, Backtesting, and Data Visualizations while adding Quant and Stock Ideas coverage and Build multifactor ranking systems, stock and ETF screens, and rules-based strategies with point-in-time data. and Run backtests for US, Canadian, and European equities with custom universes, buy and sell rules, position sizing, hedging, slippage, and commissions. features (workflow overlap ~82%).

Free tiers remain available through Portfolio123, Validea, FactorsToday, and QuantConnect for side-by-side testing.

Need mobile access? Stockopedia bring phone-ready workflows that Uncle Stock lacks.

Round out your stack with new coverage areas like Quant, Stock Ideas, Correlation, and Factor Exposure.

Uncle Stock still leads on Institutional Ownership, so keep it handy for those workflows.

Coverage Snapshot

Where alternatives already align

Most shared categories across the top matches.

Backtesting×4Portfolio×4Screeners×4APIs & Data Feeds×3Data Visualizations×3Financials×3Scores×3Alerts×2

New angles introduced

Categories the alternatives add beyond Uncle Stock.

Quant+4Correlation+3Stock Ideas+3AI Research+2Blogs+2Education+2Factor Exposure+2Newsletters+2

Access & Pricing

Free to start

4/5

4 of 5 start free, same as Uncle Stock.

Paid plans from

$22.50/mo

Validea is the cheapest paid upgrade. Uncle Stock starts at $10.83/mo.

Mobile app

1 of 5

1 add a mobile app that Uncle Stock lacks.

API access

3 of 5

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

Hands-on tested

2 of 5

2 tested hands-on. 2 are analyst picks.

Coverage overlap

58%

Average share of Uncle Stock categories each alternative covers.

Frequently Asked Questions

What are the best alternatives to Uncle Stock?

Portfolio123, Validea, and FactorsToday share the most workflows with Uncle Stock, in that order. Start with the one whose Keep list matches what you use daily.

Which alternatives keep a free tier?

Portfolio123, Validea, FactorsToday, and QuantConnect start free, so you can test them before paying. Check each card for signup and usage limits on the free plan.

Which workflows do the top Uncle Stock alternatives cover?

Between them the top matches cover Alerts, APIs & Data Feeds, Backtesting, Data Visualizations, Financials, Portfolio, Scores, Screeners, Valuation Models, and Watchlist. Uncle Stock workflows in those areas move over as they are. The Lose column on each card names what does not.

Where does Uncle Stock still stand out?

None of the alternatives here cover Institutional Ownership. Keep Uncle Stock for that, or run both tools side by side.

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Feedback

Missing an alternative, or is a listing out of date? Tell me and I will look.

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.