★ BEST INVESTING TOOLS COMPARISON ★

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Tool comparison edition

Tool Comparison

GuruFocus vs Testfol.io

Most versatile pick

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GuruFocus logo

GuruFocus

gurufocus.comTested

Free • From $549/yr · Web · Mobile · API

  • You do a lot of your research from your phone
  • You want an API so you can script or automate things
  • You care about stock ideas, screeners, and ETF screeners, things Testfol.io doesn't offer

Pick Testfol.io instead if

Testfol.io logo

Testfol.io

testfol.io

Free · Web

  • You care about risk metrics and compounding calculator, things GuruFocus doesn't offer

Skip both if: Neither one clicks with how you research; there are strong third options.

See alternatives

Outbound links may include affiliate or sponsor codes.

Our take

The bottom line

GuruFocus and Testfol.io cover a lot of the same ground (3 shared categories, quant, backtesting, and correlation), so for the basics you won't go far wrong with either. GuruFocus simply does more: 48 categories to Testfol.io's 5, including stock ideas, screeners, and ETF screeners, plus a mobile app. Testfol.io counters by being completely free.

What readers say

GuruFocus

Vote once to reveal the community verdict.

Testfol.io

Vote once to reveal the community verdict.

Key differences at a glance

Mobile app
GuruFocus
Free trial
GuruFocus7 days
Broader coverage
GuruFocus48 vs 5 categories
API access
GuruFocus
Asset coverage
GuruFocusAdds bonds and options
Beginner friendly
GuruFocus
See the full side-by-side table

See for yourself

How they stack up

The side-by-side table: pricing, platforms, data, and coverage at a glance.
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Side-by-side comparison of GuruFocus and Testfol.io
Attribute
GuruFocus logo
GuruFocus
Testfol.io logo
Testfol.io
Pricing & plans
Starting price
Free • From $549/yrFree
Free tier
YesYes
Free trial
7 days
Plan limits
41 limits: Free: portfolio limit: Up to 3 portfolios with 25 stocks each for free members, Free: data api requests: 100/month included in the Free API package +39 moreFree (Anonymous): note: Some tools (e.g., Signal Analyzer) require sign-in.
Platforms & access
Web app
YesYes
Mobile app
YesNo
API access
YesNo
Broker sync
Yes
Integrations
GuruFocus Data API, GuruFocus MCP Server +3 more
Audience & fit
Experience level
Beginner, Intermediate, AdvancedIntermediate, Advanced
Best for
Retail Traders, Pro Retail +9 moreRetail Traders, Pro Retail +2 more
Categories covered
485
Regions
North America, Europe, APAC, LatAm, Middle East, Africa
Data & capabilities
Data quality
5 signals: Latency: End of Day, Granularity: EOD +3 moreLatency: End of Day and Granularity: EOD
Data partners
5 partners: QuoteMedia, Morningstar +3 moreFRED
Capabilities
8 signals: Custom formulas, Ranking backtests +6 moreRebalancing and Correlation
Security
Status page and Encryption in transit
Try itVisit GuruFocusVisit Testfol.io

Where each one shines

What GuruFocus and Testfol.io each do best.
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GuruFocus logo

What GuruFocus does best

  1. Research global stocks with long historical financials, valuation data, charts, comparisons, market valuation indicators, economic indicators, industry data, and company-level fundamentals.
  2. Use the All-in-One Screener with hundreds of filters across fundamentals, valuation, profitability, growth, dividends, guru holdings, insider trades, predefined value screens, custom filters, saved screens, and downloads.
  3. Backtest screener strategies across many countries with configurable stock count, ranking metric, sort order, date range, and rebalance frequency.
  4. Use GF Score to compare stocks through a 0-100 framework built around financial strength, profitability, growth, valuation, and momentum.
  5. Use GF Value to frame fair value from historical multiples, past returns, and analyst estimates, then classify stocks by valuation range.
Testfol.io logo

What Testfol.io does best

  1. Build multi-asset portfolio backtests using ETFs, mutual funds, stocks, cashflow legs, and rebalancing controls such as rebalance bands.
  2. Review performance and risk statistics such as cumulative return, CAGR, money-weighted return, max drawdown, volatility, Sharpe, Sortino, and beta.
  3. Use Asset Analyzer for historical performance analysis and daily-return correlations.
  4. Test tactical allocation rules that swap between allocations using documented indicators, trading frequency, offsets, cashflows, benchmarks, and current-status views.
  5. Use Portfolio Optimizer to search for asset allocation and leverage choices based on user-provided inputs.

Every detail we compared

Every tracked attribute for GuruFocus and Testfol.io, side by side.
Show
Attribute
GuruFocus logo
GuruFocus
Testfol.io logo
Testfol.io
Coverage & fit
Asset types
StocksETFsBondsMutual FundsOptionsFundsOther
StocksETFsMutual Funds
Experience
BeginnerIntermediateAdvanced
IntermediateAdvanced
Target audience
Retail TradersPro RetailLong-term InvestorsValue InvestorsQuality InvestorsDividend InvestorsAnalystsQuants/Developers+3 more
Retail TradersPro RetailLong-term InvestorsQuants/Developers
Regions
North AmericaEuropeAPACLatAmMiddle EastAfrica
Not specified
Coverage details
Identifiers: Ticker and CIK
Identifiers: Ticker
Data
Data freshness
End of Day
End of Day
Data granularity
EOD
EOD
Pricing sources
ExchangeVendorModel
Not specified
Data partners
QuoteMediaMorningstarRefinitivFREDSEC / local regulators
FRED
Access & integrations
API protocols
REST
Not specified
API auth & delivery
Auth: APIKeySDKs: Python and GoDocs
Not specified
Import methods
CSVBrokerOAuthManual
Not specified
Integrations
GuruFocus Data APIGuruFocus MCP ServerGuruFocus Excel Add-inGuruFocus Google Sheets Add-onSnapTrade
Not specified
Export formats
CSVExcelJSON
CSV
Plans & trust
Security & compliance
Status pageEncryption in transit
Not specified
Capability signals
Custom formulasRanking backtestsUniverse builderFactors: Value, Quality, Momentum, and GrowthBroker syncMulti-currencyYield curvesAI summaries: Transcripts
RebalancingCorrelation
Vendor & support
GuruFocus.com, LLCCountry: United StatesFounded 2004Support: Email, Chat, Phone, and Forum
Support: Email

Green tags are exclusive to that tool in this comparison.

What you'll actually pay

Plans, billing, trials, and per-month pricing for both tools.
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Plan-by-plan pricing comparison of GuruFocus and Testfol.io
Tier
GuruFocus logo
GuruFocus
Testfol.io logo
Testfol.ioCheaper start
Free plan
Freeportfolio limit: Up to 3 portfolios with 25 stocks each for free members · data api requests: 100/month included in the Free API package · +1 more
FreeFree (Anonymous)note: Some tools (e.g., Signal Analyzer) require sign-in.
Entry paid plan
$549/yr$45.75/moPremiumbilling: Annual only · data api requests: 200/month included with Premium membership · +2 more
Tier 2
$1398/yr$116.50/moPlus / Premium Plusbilling: Annual only · data api requests: 500/month included with Premium Plus membership · +2 more
Tier 3
$200/moData API Builderbilling: Billed annually · monthly request limit: No limit · +10 more
Tier 4
$2448/yr$204/moPro / Professionalbilling: Annual only · data api requests: 2,000/month included with Professional membership
Tier 5
$2000/moData API Commercialbilling: Billed annually · monthly request limit: No limit · +1 more
Top plan
$100 per unitData API Pay As You Goinitial top up: $100 credit · company profile: $0.10/request · +10 more
Custom / enterprise
Contact salesCustom API / Enterprise Package
Free trial7 days

Questions we keep getting

What's the difference between GuruFocus and Testfol.io?

GuruFocus leans toward stock ideas, screeners, and ETF screeners, while Testfol.io puts more weight on backtesting, correlation, and risk metrics. They overlap in 3 categories, so for most people it comes down to workflow preference and price.

How much do GuruFocus and Testfol.io cost?

Good news: both GuruFocus and Testfol.io have free plans, so you can run them side by side and only pay if you hit a wall.

Which is better for beginners: GuruFocus or Testfol.io?

GuruFocus is the friendlier place to start; its interface takes less getting used to. Both work fine once you're past the basics.

Can I use GuruFocus or Testfol.io on my phone?

GuruFocus lists a dedicated mobile app, so it travels better. Testfol.io doesn't list a dedicated mobile app; its documented access is web.

Does GuruFocus or Testfol.io have an API?

GuruFocus has an API for programmatic access and custom integrations. Testfol.io doesn't, so you're working through its interface.

Should I choose GuruFocus or Testfol.io?

It depends on what you're after. Pick GuruFocus if stock ideas and screeners matter to you; go with Testfol.io if you'd rather have risk metrics and compounding calculator. And if you only need the basics both share, let price decide.

What asset classes do GuruFocus and Testfol.io cover?

Both cover stocks, ETFs, and mutual funds. GuruFocus also handles bonds, options, and funds.

Can I export data from GuruFocus and Testfol.io?

Yes, both export to spreadsheets (CSV), which is handy if you like running your own numbers.

Are GuruFocus and Testfol.io good for long-term investing?

Yes, both are aimed squarely at long-term investors. Compare their coverage, workflow, and price before assuming they solve the same long-term research job.

Which has a better stock screener: GuruFocus or Testfol.io?

GuruFocus has a stock screener for surfacing ideas; Testfol.io doesn't, and focuses its energy elsewhere.

Can I track my portfolio with GuruFocus or Testfol.io?

GuruFocus handles portfolio tracking. Testfol.io is really a research tool; you'd track your portfolio elsewhere.

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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.