Comparison

testfolio vs Portfolio Lab

testfolio and Portfolio Lab both land on Worth it.

testfolio

Worth it

Confidence: Medium

Buy it if you're a DIY investor comparing ETF or leveraged-ETF allocations over long horizons.

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Portfolio Lab

portfoliolab.app

Worth it

Confidence: Medium

DIY investors get a genuinely free, assumption-transparent optimizer with little to lose.

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testfolio versus Portfolio Lab
Compare	testfolio	Portfolio Lab
Verdict	Worth it	Worth it
Best for	DIY ETF portfolio backtesting	DIY index investors
Who it's not for	Traders needing intraday drawdown accuracy	Advisors needing custodian feeds and client reporting
Privacy	No known public vulnerabilities found in the sources reviewed.	No known public vulnerabilities found in the sources reviewed.¹⁶
Support quality	No support-quality evidence in sources	No support or responsiveness evidence found
Public sentiment	DIY investors on Reddit broadly praise testfolio for long-term strategy comparison while criticizing its drawdown math and new paid model.^⁵	Independent user reviews are sparse; Reddit discussions focus on calculation details rather than endorsements.
Biggest gotcha	Free-to-paid shift is recent; verify current plan limits before committing workflows^⁸	'The catch' with free optimizers is gated features . verify which tools stay free¹⁴

Pick testfolio when

DIY ETF portfolio backtesting
Leveraged-ETF strategy research
Bogleheads-style allocation comparison
Rebalancing and cashflow modeling

When testfolio is not a fit

Traders needing intraday drawdown accuracy
Advisors needing audited, compliance-grade models
Anyone expecting the old free tool
Buyers requiring vendor security documentation

Pick Portfolio Lab when

DIY index investors
Portfolio Visualizer power users
Assumption-checking allocators

When Portfolio Lab is not a fit

Advisors needing custodian feeds and client reporting
Institutional teams wanting order management or compliance
Hands-off investors who just want account tracking
Anyone expecting trade execution or tax-loss harvesting

Sources

testfolio: Portfolio Backtester for ETFs and Asset Allocationtestfol.io
official
Pricing and Planstestfol.io
official
Portfolio Backtesting, Tactical Allocation & Optimization Toolstestfol.io
official
Help, Methodology, and Tool Guidestestfol.io
official
Testfol.io is amazing for comparing long term strategiesreddit.com
review
Three Portfolio Backtesters Every DIY Investor Should Knowriskparitychronicles.substack.com
review
How accurate are Portfolio Backtesting Toolsbogleheads.org
review
testfol.io now becomes a paid platformreddit.com
review
testfolio and portfolio visualizer are lying to you about drawdownsreddit.com
review
Losing my saved portfolios and strategies on Testfolioreddit.com
review
The 48% Dividend Mirage247wallst.com
news
Portfolio Lab . Free Portfolio Optimizer & Analysis Softwareportfoliolab.app
official
Portfolio Lab vs Portfolio Visualizerportfoliolab.app
official
Portfolio Visualizer Alternatives 2026 . Portfolio Labportfoliolab.app
official
About Portfolio Lab . Glenn Cameron, CFAportfoliolab.app
official
Product security pageportfoliolab.app
security