★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
Fey vs Koyfin
Pick Fey if
Fey
Contact for pricing · Desktop · Web
- You care about news sentiment, improved filings, and factor exposure, things Koyfin doesn't offer
Pick Koyfin if
Koyfin
Free • From $39/mo · Web · Mobile
- You'd rather start free and only pay if you outgrow it
- You do a lot of your research from your phone
- You care about ETF screeners, data visualizations, and custom dashboards, things Fey doesn't offer
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
Fey and Koyfin cover a lot of the same ground (10 shared categories, including screeners, portfolio, and watchlist), so for the basics you won't go far wrong with either. Koyfin simply does more: 20 categories to Fey's 13, including ETF screeners, data visualizations, and custom dashboards, plus a mobile app. Fey counters by keeping things simpler.
What readers say
Fey
Vote once to reveal the community verdict.
Koyfin
Vote once to reveal the community verdict.
Key differences at a glance
- Free plan
- Koyfin
- Broader coverage
- Koyfin20 vs 13 categories
- Mobile app
- Koyfin
- Desktop app
- Fey
- Global coverage
- Koyfin
- Asset coverage
- KoyfinAdds mutual funds and closed-end funds
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 | Contact for pricing | Free • From $39/mo |
Free tier | No | Yes |
Free trial | — | — |
Plan limits | — | 24 limits: Free: watchlists: 2, Free: screens: 2 +22 more |
| Platforms & access | ||
Web app | Yes | Yes |
Desktop app | Yes | No |
Mobile app | No | Yes |
API access | No | No |
Broker sync | Yes | Yes |
Integrations | Plaid, Interactive Brokers +1 more | Schwab, Altruist +6 more |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | Retail Traders, Pro Retail +6 more |
Categories covered | 13 | 20 |
Regions | North America | North America, Europe, APAC, LatAm, Middle East, Africa |
| Data & capabilities | ||
Data quality | 5 signals: Latency: Real-time and End of Day, Granularity: Minute and EOD +3 more | 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 | 5 signals: Universe builder, Factors: Value, Growth, Momentum, Quality, and Size +3 more | 7 signals: Universe builder, Broker sync +5 more |
Security | Data residency: Other | 4 signals: SOC2, Data residency: US +2 more |
| Try it | Visit Fey | Visit Koyfin |
Where each one shines
What Fey and Koyfin each do best.ShowHide
Where each one shines
What Fey and Koyfin each do best.What Fey does best
- Fey as a historical reference for AI investing UX rather than a live product to buy; standalone signups are closed after the Wealthsimple acquisition.
- Research tools for studying its Finder workflow, which turned plain-English prompts like undervalued tech with insider buying into editable stock screens.
- Comparison tools for AI earnings workflows, including instant press-release summaries, live earnings calls, transcripts, and transcript summaries.
- Views for reviewing how Fey approached SEC filing research with on-demand AI summaries for 10-K and 10-Q sections such as revenue, strengths, challenges, and risks.
- The Portfolio Analyze concept as a model for benchmarking holdings, surfacing factor tilts, scanning mispricings, and prioritizing P&L-relevant headlines.
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 Fey and Koyfin, side by side.ShowHide
Every detail we compared
Every tracked attribute for Fey and Koyfin, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | 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 and CAIdentifiers: Ticker | Identifiers: Ticker |
| Data | ||
Data freshness | Real-timeEnd of Day | Real-time15-min DelayedEnd of Day |
Data granularity | MinuteEOD | Not specified |
Data partners | Not specified | S&P Global Market IntelligenceMorningstarFREDTrading EconomicsTrueFXPolygon.io |
| Access & integrations | ||
Import methods | BrokerOAuthPlaidManual | ManualCSVCustodian |
Integrations | PlaidInteractive BrokersE*TRADE | SchwabAltruistTradePMRInteractive BrokersBlack DiamondOrionFidelityAddepar |
Export formats | Excel | CSVImagePDF |
| Plans & trust | ||
Security & compliance | Data residency: Other | SOC2Data residency: USEncryption at restEncryption in transit |
Capability signals | Universe builderFactors: Value, Growth, Momentum, Quality, and SizeBroker syncPortfolio factor exposureAI summaries: Filings, Transcripts, and News | Universe builderBroker syncYield curvesAI summaries: TranscriptsHouseholdingModel portfoliosClient reporting |
Vendor & support | Fey Labs, Inc.Country: CanadaFounded 2021Support: Email | Koyfin, Inc.Country: United StatesFounded 2016Support: Email |
Curation ratings | Methodology 3/5Reliability 4/5UX 5/5 | 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 | — | Freewatchlists: 2 · screens: 2 · +5 more |
| 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“Standalone Fey” | Contact sales“Teams” |
Questions we keep getting
What's the difference between Fey and Koyfin?
Fey leans toward screeners, portfolio, and watchlist, while Koyfin puts more weight on screeners, ETF screeners, and data visualizations. They overlap in 10 categories, so for most people it comes down to workflow preference and price.
Is Fey or Koyfin free to use?
Koyfin has a free tier, so you can get started without paying anything. Fey is paid-only. If budget matters, start with Koyfin and see how far it takes you before opening your wallet.
Can I use Fey or Koyfin on my phone?
Koyfin lists a dedicated mobile app, so it travels better. Fey doesn't list a dedicated mobile app; its documented access is desktop and web.
Should I choose Fey or Koyfin?
It depends on what you're after. Pick Fey if news sentiment and improved filings matter to you; go with Koyfin if you'd rather have ETF screeners and data visualizations. And if you only need the basics both share, let price decide.
What asset classes do Fey and Koyfin cover?
Both cover stocks and ETFs. Koyfin adds mutual funds, closed-end funds, and bonds on top.
Do Fey and Koyfin offer real-time data?
Yes, both serve real-time market data, so either works when timing matters.
Which covers international markets: Fey 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. Fey is more region-specific, mainly North America.
Can I export data from Fey and Koyfin?
Yes, both export to spreadsheets (Fey: Excel; Koyfin: CSV), which is handy if you like running your own numbers.
Can Fey or Koyfin connect to my broker?
Yes, both connect to brokers, so your portfolio syncs automatically instead of you keying in every trade.
Which has a better stock screener: Fey or Koyfin?
Both Fey and Koyfin include stock screeners, and they differ more in interface than raw power; try both and see which one clicks for you.
Can I track my portfolio with Fey or Koyfin?
Yes, both do portfolio tracking: holdings, performance, and allocation in one place.
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.