★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
Koyfin vs Testfol.io
Pick Koyfin if
Koyfin
Free • From $39/mo · Web · Mobile
- Delayed quotes won't cut it; you need real-time data
- You do a lot of your research from your phone
- You care about screeners, ETF screeners, and data visualizations, things Testfol.io doesn't offer
Pick Testfol.io if
Testfol.io
Free · Web
- You care about backtesting, risk metrics, and quant, things Koyfin doesn't offer
- 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 alternativesOutbound links may include affiliate or sponsor codes.
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 being completely free. On paper they're closely matched, so let pricing, platform fit, and the details below break the tie.
What readers say
Koyfin
Vote once to reveal the community verdict.
Testfol.io
Vote once to reveal the community verdict.
Key differences at a glance
- Real-time data
- Koyfin
- Broader coverage
- Koyfin20 vs 5 categories
- Mobile app
- Koyfin
- Asset coverage
- KoyfinAdds closed-end funds and bonds
- Beginner friendly
- Koyfin
- Free plan
- Both
See for yourself
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.ShowHide
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free • From $39/mo | Free |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | 24 limits: Free: watchlists: 2, Free: screens: 2 +22 more | Free (Anonymous): note: Some tools (e.g., Signal Analyzer) require sign-in. |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | Yes | No |
API access | No | No |
Broker sync | Yes | — |
Integrations | Schwab, Altruist +6 more | — |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +6 more | Retail Traders, Pro Retail +2 more |
Categories covered | 20 | 5 |
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: TotalReturn | Latency: End of Day and Granularity: EOD |
Data partners | 6 partners: S&P Global Market Intelligence, Morningstar +4 more | FRED |
Capabilities | 7 signals: Universe builder, Broker sync +5 more | Rebalancing and Correlation |
Security | 4 signals: SOC2, Data residency: US +2 more | — |
| Try it | Visit Koyfin | Visit Testfol.io |
Where each one shines
What Koyfin and Testfol.io each do best.ShowHide
Where each one shines
What Koyfin and Testfol.io each do best.What Koyfin does best
- Build customizable dashboards, watchlists, charts, and market monitors across global equities, ETFs, funds, fixed income, FX, commodities, crypto, indices, and economics.
- Screen 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.
- Use advanced charts with technical indicators, fundamentals, valuation measures, analyst estimates, price targets, templates, sharing, and downloads where vendor licenses allow.
- Research companies with financial analysis pages, customizable financial templates, news, filings, transcripts, analyst data, short interest, and AI transcript summaries on paid plans.
- Track portfolios with grouping, notes, summary rows, alerts, custom data series, uploaded CSV price history, and mobile portfolio monitoring.
What Testfol.io does best
- Build multi-asset portfolio backtests using ETFs, mutual funds, stocks, cashflow legs, and rebalancing controls such as rebalance bands.
- Review performance and risk statistics such as cumulative return, CAGR, money-weighted return, max drawdown, volatility, Sharpe, Sortino, and beta.
- Use Asset Analyzer for historical performance analysis and daily-return correlations.
- Test tactical allocation rules that swap between allocations using documented indicators, trading frequency, offsets, cashflows, benchmarks, and current-status views.
- Use Portfolio Optimizer to search for asset allocation and leverage choices based on user-provided inputs.
Every detail we compared
Every tracked attribute for Koyfin and Testfol.io, side by side.ShowHide
Every detail we compared
Every tracked attribute for Koyfin and Testfol.io, side by side.| Attribute | ||
|---|---|---|
| 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.
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.ShowHide
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.| Tier | ||
|---|---|---|
| Free plan | Freewatchlists: 2 · screens: 2 · +5 more | Free“Free (Anonymous)”note: Some tools (e.g., Signal Analyzer) require sign-in. |
| Entry paid plan | $39/mo“Plus”financials years: 10 · estimates years: 10 · +5 more | — |
| Tier 2 | $79/mo“Premium”alerts: 500 · custom securities: Unlimited | — |
| Tier 3 | $209/mo“Advisor Core”alerts: 500 · reports per month: 10 · +2 more | — |
| Top plan | $299/mo“Advisor Pro”alerts: 500 · reports per month: 200 · +2 more | — |
| Custom / enterprise | Contact sales“Teams” | — |
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.
Keep researching
More comparisons to check
Other tools you might like
Keep Exploring
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.