VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
FOIAsearch vs Koyfin
Pick FOIAsearch instead if
FOIAsearch
Free • Paid plans available · Web
- You want regulatory filings monitoring and flags.
Start here
Koyfin
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.
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
FOIAsearch and Koyfin cover a lot of the same ground (2 shared categories, alerts and watchlist), so for the basics you won't go far wrong with either. Koyfin simply does more: 20 categories to FOIAsearch's 4, including screeners, ETF screeners, and data visualizations, plus a mobile app. FOIAsearch counters by being completely free.
What readers say
FOIAsearch
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Koyfin
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Key differences at a glance
- Real-time data
- Koyfin
- Broader coverage
- Koyfin20 vs 4 categories
- Mobile app
- Koyfin
- Global coverage
- Koyfin
- Asset coverage
- KoyfinAdds ETFs and mutual funds
- 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 • Paid plans available | Free • From $468/yr |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | — | 24 limits: Free: watchlists: 2, Free: screens: 2 +22 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | Yes |
API access | No | No |
Broker sync | — | Yes |
Integrations | — | Schwab, Altruist +6 more |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | Retail Traders, Pro Retail +6 more |
Categories covered | 4 | 20 |
Regions | North America | 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 |
Data partners | — | 6 partners: S&P Global Market Intelligence, Morningstar +4 more |
Capabilities | — | 7 signals: Universe builder, Broker sync +5 more |
Security | — | 4 signals: SOC2, Data residency: US +2 more |
| Try it | Visit FOIAsearch | Visit Koyfin |
Where each one shines
What FOIAsearch and Koyfin each do best.ShowHide
Where each one shines
What FOIAsearch and Koyfin each do best.What FOIAsearch does best
- Search SEC FOIA request logs by company or organization.
- Review separate lists for all requests and B7A-exempt requests.
- Use Protect My Portfolio for alerts about saved portfolio companies.
- Use IR Watch for alerts when hedge funds, research firms or reporters request information about an issuer.
- Receive a monthly roundup of SEC FOIA requests from selected reporters.
What Koyfin does best
- Tools for building customizable dashboards, watchlists, charts, and market monitors across global equities, ETFs, funds, fixed income, FX, commodities, crypto, indices, and economics.
- 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.
- Advanced charts with technical indicators, fundamentals, valuation measures, analyst estimates, price targets, templates, sharing, and downloads where vendor licenses allow.
- 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.
- Tracking portfolios with grouping, notes, summary rows, alerts, custom data series, uploaded CSV price history, and mobile portfolio monitoring.
Every detail we compared
Every tracked attribute for FOIAsearch and Koyfin, side by side.ShowHide
Every detail we compared
Every tracked attribute for FOIAsearch and Koyfin, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | Stocks | StocksETFsMutual FundsClosed-End FundsBondsCurrenciesCommoditiesFutures+1 more |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Not specified | Retail TradersPro RetailInstitutional InvestorsAnalystsAsset ManagersFinancial AdvisorsRIAs / Wealth FirmsStudents/Researchers |
Regions | North America | North AmericaEuropeAPACLatAmMiddle EastAfrica |
Coverage details | Countries: US | Identifiers: Ticker |
| Data | ||
Data freshness | Not specified | Real-time15-min DelayedEnd of Day |
Data partners | Not specified | S&P Global Market IntelligenceMorningstarFREDTrading EconomicsTrueFXPolygon.io |
| Access & integrations | ||
Import methods | Not specified | ManualCSVCustodian |
Integrations | Not specified | SchwabAltruistTradePMRInteractive BrokersBlack DiamondOrionFidelityAddepar |
Export formats | Not specified | CSVImagePDF |
| Plans & trust | ||
Security & compliance | Not specified | SOC2Data residency: USEncryption at restEncryption in transit |
Capability signals | Not specified | Universe builderBroker syncYield curvesAI summaries: TranscriptsHouseholdingModel portfoliosClient reporting |
Vendor & support | Dorsey Research LLCSupport: Email | Koyfin, Inc.Country: United StatesFounded 2016Support: Email |
Curation ratings | Methodology 3/5Reliability 3/5UX 4/5 | Not specified |
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 | Free“Free Search” | Freewatchlists: 2 · screens: 2 · +5 more |
| Entry paid plan | Subscription“Portfolio Alerts” | $468/yr≈ $39/mo“Plus”financials years: 10 · estimates years: 10 · +5 more |
| Tier 2 | Subscription“IR Watch” | $948/yr≈ $79/mo“Premium”alerts: 500 · custom securities: Unlimited |
| Tier 3 | Subscription“Prominent Reporter Alerts” | $2508/yr≈ $209/mo“Advisor Core”alerts: 500 · reports per month: 10 · +2 more |
| Top plan | — | $3588/yr≈ $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 FOIAsearch and Koyfin?
FOIAsearch leans toward alerts, regulatory filings monitoring, and watchlist, while Koyfin puts more weight on screeners, ETF screeners, and data visualizations. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
How much do FOIAsearch and Koyfin cost?
Good news: both FOIAsearch and Koyfin have free plans, so you can run them side by side and only pay if you hit a wall.
Can I use FOIAsearch or Koyfin on my phone?
Koyfin lists a dedicated mobile app, so it travels better. FOIAsearch doesn't list a dedicated mobile app; its documented access is web.
Should I choose FOIAsearch or Koyfin?
It depends on what you're after. Pick FOIAsearch if regulatory filings monitoring and flags matter to you; go with Koyfin if you'd rather have screeners and ETF screeners. And if you only need the basics both share, let price decide.
What asset classes do FOIAsearch and Koyfin cover?
Both cover stocks. Koyfin adds ETFs, mutual funds, and closed-end funds on top.
Does FOIAsearch or Koyfin have real-time data?
Koyfin offers real-time data, which matters if you trade actively. FOIAsearch 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.
Which covers international markets: FOIAsearch or Koyfin?
Koyfin has documented international coverage (North America, Europe, APAC, LatAm, and more), so it's the safer bet if you hold non-US stocks. FOIAsearch is more region-specific, mainly North America.
Can I export data from FOIAsearch and Koyfin?
Koyfin exports to CSV. FOIAsearch is stingier about getting data out.
Which has a better stock screener: FOIAsearch or Koyfin?
Koyfin has a stock screener for surfacing ideas; FOIAsearch doesn't, and focuses its energy elsewhere.
Can I track my portfolio with FOIAsearch or Koyfin?
Koyfin handles portfolio tracking. FOIAsearch is really a research tool; you'd track your portfolio elsewhere.
Keep researching
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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.