BEST INVESTING TOOLS COMPARISON

Checking

Checked September 24, 2026

Tool Comparison

Koyfin vs Testfol.io

Paid from
$39/mo
Free plan
Yes
Platforms
Web, Mobile

Best if

  • Delayed quotes won't cut it; you need real-time data
  • You do a lot of your research from your phone
  • You want screeners, ETF screeners, and data visualizations.
Paid from
$15/mo
Free plan
Yes
Platforms
Web

Best if

  • You want the cheaper way in: plans start at $15/mo instead of $39/mo
  • You want backtesting, risk metrics, and quant.
  • You're a long-term investor who cares more about fundamentals than headlines

Pick Koyfin if

Koyfin logo

Koyfin

koyfin.comTested

Free • From $468/yr · Web · Mobile

  • Delayed quotes won't cut it; you need real-time data
  • You do a lot of your research from your phone
  • You want screeners, ETF screeners, and data visualizations.

Pick Testfol.io if

Testfol.io logo

Testfol.io

testfol.io

Free • From $15/mo · Web

  • You want the cheaper way in: plans start at $15/mo instead of $39/mo
  • You want backtesting, risk metrics, and quant.
  • You're a long-term investor who cares more about fundamentals than headlines

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

See alternatives

Other tools you might like

Outbound links may include affiliate or sponsor codes.

Not set on either one? See the top 50 tools, ranked by user votes, or the deals page for big discounts on popular tools.

Our take

The bottom line

Koyfin simply does more: 20 categories to Testfol.io's 5, including screeners, ETF screeners, and data visualizations, plus a mobile app. Testfol.io counters by starting cheaper at $15/mo. On paper they're closely matched, so let pricing, platform fit, and the details below break the tie.

What readers say

Koyfin

No votes yet. Cast the first one.

Testfol.io

No votes yet. Cast the first one.

Key differences at a glance

Cheaper paid plan
Testfol.io$15/mo vs $39/mo
Free trial
Testfol.io7 days
Broader coverage
Koyfin20 vs 5 categories
Mobile app
Koyfin
Real-time data
Koyfin
Asset coverage
KoyfinAdds closed-end funds and bonds
See the full side-by-side table
Koyfin logo

What Koyfin does best

  1. Tools for building customizable dashboards, watchlists, charts, and market monitors across global equities, ETFs, funds, fixed income, FX, commodities, crypto, indices, and economics.
  2. Screening for more than 100,000 global securities with thousands of criteria, with stock and ETF screening on paid plans and mutual-fund screening in Advisor tiers.
  3. Advanced charts with technical indicators, fundamentals, valuation measures, analyst estimates, price targets, templates, sharing, and downloads where vendor licenses allow.
  4. Research coverage for companies with financial analysis pages, customizable financial templates, news, filings, transcripts, analyst data, short interest, and AI transcript summaries on paid plans.
  5. Tracking portfolios with grouping, notes, summary rows, alerts, custom data series, uploaded CSV price history, and mobile portfolio monitoring.
Testfol.io logo

What Testfol.io does best

  1. Tools for building 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. Asset Analyzer for historical performance analysis and daily-return correlations.
  4. Testing tools for tactical allocation rules that swap between allocations using documented indicators, trading frequency, offsets, cashflows, benchmarks, and current-status views.
  5. Portfolio Optimizer searches for asset allocation and use choices based on user-provided inputs.

Side by side

Pricing & plans
Starting price
Free • From $468/yr
Free • From $15/mo
Free tier
Yes
Yes
Free trial
—
7 days
Platforms & access
Web app
Yes
Yes
Mobile app
Yes
No
API access
No
No
Broker sync
Yes
—
Integrations
Schwab, Altruist +6 more
—
Coverage & data
Asset types
StocksETFsMutual FundsClosed-End FundsBondsCurrenciesCommoditiesFutures+1 more
StocksETFsMutual Funds
Target audience
Retail TradersPro RetailInstitutional InvestorsAnalystsAsset ManagersFinancial AdvisorsRIAs / Wealth FirmsStudents/Researchers
Retail TradersPro RetailLong-term InvestorsQuants/Developers
Data freshness
Real-time15-min DelayedEnd of Day
End of Day
Data granularity
Not specified
EOD
Export formats
CSVImagePDF
CSV

Pricing comparison

Tier
Testfol.ioCheaper start
Free plan
Free
Free“Free (Anonymous)”
Entry paid plan
$468/yr≈ $39/mo“Plus”
$15/mo“Pro”
Tier 2
$948/yr≈ $79/mo“Premium”
$30/mo“Pro+”
Tier 3
$2508/yr≈ $209/mo“Advisor Core”
$960/yr≈ $80/mo“Max”
Top plan
$3588/yr≈ $299/mo“Advisor Pro”
—
Custom / enterprise
Contact sales“Teams”
—
Free trial
—
7 days

See for yourself

Side by side

Price, platforms, data, and market coverage.
Show
Side-by-side comparison of Koyfin and Testfol.io
Attribute
Koyfin logo
Koyfin
Testfol.io logo
Testfol.io
Pricing & plans
Starting price
Free • From $468/yrFree • From $15/mo
Free tier
YesYes
Free trial
—7 days
Plan limits
24 limits: Free: watchlists: 2, Free: screens: 2 +22 more10 limits: Free (Anonymous): note: Some tools (e.g., Signal Analyzer) require sign-in., Pro: annual price usd: 150 +8 more
Platforms & access
Web app
YesYes
Mobile app
YesNo
API access
NoNo
Broker sync
Yes—
Integrations
Schwab, Altruist +6 more—
Audience & fit
Experience level
Beginner, Intermediate, AdvancedIntermediate, Advanced
Best for
Retail Traders, Pro Retail +6 moreRetail Traders, Pro Retail +2 more
Categories covered
205
Regions
North America, Europe, APAC, LatAm, Middle East, Africa—
Data & capabilities
Data quality
Latency: Real-time, 15-min Delayed, and End of Day and Adjustments: TotalReturnLatency: End of Day and Granularity: EOD
Data partners
6 partners: S&P Global Market Intelligence, Morningstar +4 moreFRED
Capabilities
7 signals: Universe builder, Broker sync +5 moreRebalancing and Correlation
Security
4 signals: SOC2, Data residency: US +2 more—
Try itVisit KoyfinVisit Testfol.io

Standout features

The best features of Koyfin and Testfol.io.
Show
Koyfin logo

What Koyfin does best

  1. Tools for building customizable dashboards, watchlists, charts, and market monitors across global equities, ETFs, funds, fixed income, FX, commodities, crypto, indices, and economics.
  2. Screening for more than 100,000 global securities with thousands of criteria, with stock and ETF screening on paid plans and mutual-fund screening in Advisor tiers.
  3. Advanced charts with technical indicators, fundamentals, valuation measures, analyst estimates, price targets, templates, sharing, and downloads where vendor licenses allow.
  4. Research coverage for companies with financial analysis pages, customizable financial templates, news, filings, transcripts, analyst data, short interest, and AI transcript summaries on paid plans.
  5. Tracking portfolios with grouping, notes, summary rows, alerts, custom data series, uploaded CSV price history, and mobile portfolio monitoring.
Testfol.io logo

What Testfol.io does best

  1. Tools for building 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. Asset Analyzer for historical performance analysis and daily-return correlations.
  4. Testing tools for tactical allocation rules that swap between allocations using documented indicators, trading frequency, offsets, cashflows, benchmarks, and current-status views.
  5. Portfolio Optimizer searches for asset allocation and use choices based on user-provided inputs.

All details

Every attribute we track for Koyfin and Testfol.io.
Show
Attribute
Koyfin logo
Koyfin
Testfol.io logo
Testfol.io
Coverage & fit
Asset types
StocksETFsMutual FundsClosed-End FundsBondsCurrenciesCommoditiesFutures+1 more
StocksETFsMutual Funds
Experience
BeginnerIntermediateAdvanced
IntermediateAdvanced
Target audience
Retail TradersPro RetailInstitutional InvestorsAnalystsAsset ManagersFinancial AdvisorsRIAs / Wealth FirmsStudents/Researchers
Retail TradersPro RetailLong-term InvestorsQuants/Developers
Regions
North AmericaEuropeAPACLatAmMiddle EastAfrica
Not specified
Coverage details
Identifiers: Ticker
Identifiers: Ticker
Data
Data freshness
Real-time15-min DelayedEnd of Day
End of Day
Data granularity
Not specified
EOD
Data partners
S&P Global Market IntelligenceMorningstarFREDTrading EconomicsTrueFXPolygon.io
FRED
Access & integrations
Import methods
ManualCSVCustodian
Not specified
Integrations
SchwabAltruistTradePMRInteractive BrokersBlack DiamondOrionFidelityAddepar
Not specified
Export formats
CSVImagePDF
CSV
Plans & trust
Security & compliance
SOC2Data residency: USEncryption at restEncryption in transit
Not specified
Capability signals
Universe builderBroker syncYield curvesAI summaries: TranscriptsHouseholdingModel portfoliosClient reporting
RebalancingCorrelation
Vendor & support
Koyfin, Inc.Country: United StatesFounded 2016Support: Email
Support: Email

Green tags are exclusive to that tool in this comparison.

Pricing

Plans, billing, free trials, and monthly prices.
Show
Plan-by-plan pricing comparison of Koyfin and Testfol.io
Tier
Koyfin logo
Koyfin
Testfol.io logo
Testfol.ioCheaper start
Free plan
Freewatchlists: 2 · screens: 2 · +5 more
Free“Free (Anonymous)”note: Some tools (e.g., Signal Analyzer) require sign-in.
Entry paid plan
$468/yr≈ $39/mo“Plus”financials years: 10 · estimates years: 10 · +5 more
$15/mo“Pro”annual price usd: 150 · annual monthly equivalent usd: 12.5 · +1 more
Tier 2
$948/yr≈ $79/mo“Premium”alerts: 500 · custom securities: Unlimited
$30/mo“Pro+”annual price usd: 300 · annual monthly equivalent usd: 25 · +3 more
Tier 3
$2508/yr≈ $209/mo“Advisor Core”alerts: 500 · reports per month: 10 · +2 more
$960/yr≈ $80/mo“Max”billed: Annually
Top plan
$3588/yr≈ $299/mo“Advisor Pro”alerts: 500 · reports per month: 200 · +2 more
—
Custom / enterprise
Contact sales“Teams”
—
Free trial—7 days

Questions we keep getting

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

Koyfin leans toward screeners, ETF screeners, and data visualizations, while Testfol.io puts more weight on backtesting, correlation, and risk metrics. They overlap in 1 categories, so for most people it comes down to workflow preference and price.

How much do Koyfin and Testfol.io cost?

Good news: both Koyfin 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: Koyfin or Testfol.io?

Koyfin 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 Koyfin or Testfol.io on my phone?

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

Should I choose Koyfin or Testfol.io?

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

What asset classes do Koyfin and Testfol.io cover?

Both cover stocks, ETFs, and mutual funds. Koyfin also handles closed-end funds, bonds, and currencies.

Does Koyfin or Testfol.io have real-time data?

Koyfin offers real-time data, which matters if you trade actively. Testfol.io runs on delayed or end-of-day data, which is perfectly fine for longer-term investors who don't live and die by the tick.

Can I export data from Koyfin and Testfol.io?

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

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

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

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

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

Feedback

Spot stale pricing, missing features, or a comparison that feels off? Send feedback on the verdict, table, alternatives, or recommendation.

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.