★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
Koyfin vs The Fly Pro
Start here
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 ETF screeners, custom dashboards, and correlation, things The Fly Pro doesn't offer
Pick The Fly Pro instead if
The Fly Pro
Free • From $18.60/mo · Web
- You want the cheaper way in: plans start at $18.6/mo instead of $39/mo
- You care about stock comparison and macro data, things Koyfin 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
Koyfin and The Fly Pro cover a lot of the same ground (7 shared categories, including screeners, data visualizations, and watchlist), so for the basics you won't go far wrong with either. Koyfin simply does more: 20 categories to The Fly Pro's 9, including ETF screeners, custom dashboards, and correlation, plus a mobile app. The Fly Pro counters by starting cheaper at $18.6/mo.
What readers say
Koyfin
Vote once to reveal the community verdict.
The Fly Pro
Vote once to reveal the community verdict.
Key differences at a glance
- Cheaper paid plan
- The Fly Pro$18.6/mo vs $39/mo
- Free trial
- The Fly Pro7 days
- Broader coverage
- Koyfin20 vs 9 categories
- Mobile app
- Koyfin
- Real-time data
- Koyfin
- Asset coverage
- KoyfinAdds ETFs and mutual 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 | Free • From $39/mo | Free • From $18.60/mo |
Free tier | Yes | Yes |
Free trial | — | 7 days |
Plan limits | 24 limits: Free: watchlists: 2, Free: screens: 2 +22 more | 8 limits: Premium Annual: regular monthly equivalent usd: 62, Premium Annual: promotion: Quarter-end 70% off +6 more |
| 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 | Beginner, Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +6 more | — |
Categories covered | 20 | 9 |
Regions | North America, Europe, APAC, LatAm, Middle East, Africa | North America, Europe |
| 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 | — |
Capabilities | 7 signals: Universe builder, Broker sync +5 more | — |
Security | 4 signals: SOC2, Data residency: US +2 more | — |
| Try it | Visit Koyfin | Visit The Fly Pro |
Where each one shines
What Koyfin and The Fly Pro each do best.ShowHide
Where each one shines
What Koyfin and The Fly Pro 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 The Fly Pro does best
- Use visual dashboards and customizable charts to research public companies without building every financial view from scratch.
- Screen and compare stocks with simplified fundamental and performance charting.
- Research 1,100+ company-specific KPIs with historical context and updates around earnings releases where paid access includes the data.
- Review 10 years of financials on free access and deeper 30+ year history on the paid plan as recorded in the profile.
- Use company comparison tools to compare operating metrics, fundamentals, and charted data across peers.
Every detail we compared
Every tracked attribute for Koyfin and The Fly Pro, side by side.ShowHide
Every detail we compared
Every tracked attribute for Koyfin and The Fly Pro, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsMutual FundsClosed-End FundsBondsCurrenciesCommoditiesFutures+1 more | Stocks |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Retail TradersPro RetailInstitutional InvestorsAnalystsAsset ManagersFinancial AdvisorsRIAs / Wealth FirmsStudents/Researchers | Not specified |
Regions | North AmericaEuropeAPACLatAmMiddle EastAfrica | North AmericaEurope |
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 | Not specified |
| Access & integrations | ||
Import methods | ManualCSVCustodian | Not specified |
Integrations | SchwabAltruistTradePMRInteractive BrokersBlack DiamondOrionFidelityAddepar | Not specified |
Export formats | CSVImagePDF | Not specified |
| Plans & trust | ||
Security & compliance | SOC2Data residency: USEncryption at restEncryption in transit | Not specified |
Capability signals | Universe builderBroker syncYield curvesAI summaries: TranscriptsHouseholdingModel portfoliosClient reporting | Not specified |
Vendor & support | Koyfin, Inc.Country: United StatesFounded 2016Support: Email | Main Street Financial Data Inc.Support: Email |
Curation ratings | Not specified | Methodology 3/5Reliability 4/5UX 4/5 |
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 |
| Entry paid plan | $39/mo“Plus”financials years: 10 · estimates years: 10 · +5 more | $18.60/mo“Premium Annual”regular monthly equivalent usd: 62 · promotion: Quarter-end 70% off |
| Tier 2 | $79/mo“Premium”alerts: 500 · custom securities: Unlimited | $22.20/mo“Premium Monthly”regular monthly price usd: 74 · promotion: Quarter-end 70% off |
| Tier 3 | $209/mo“Advisor Core”alerts: 500 · reports per month: 10 · +2 more | $45/mo“Ultimate Annual”regular monthly equivalent usd: 150 · promotion: Quarter-end 70% off |
| Top plan | $299/mo“Advisor Pro”alerts: 500 · reports per month: 200 · +2 more | $54/mo“Ultimate Monthly”regular monthly price usd: 180 · promotion: Quarter-end 70% off |
| Custom / enterprise | Contact sales“Teams” | Contact sales“Institutional” |
| Free trial | — | 7 days |
Questions we keep getting
What's the difference between Koyfin and The Fly Pro?
Koyfin leans toward screeners, ETF screeners, and data visualizations, while The Fly Pro puts more weight on screeners, data visualizations, and stock comparison. They overlap in 7 categories, so for most people it comes down to workflow preference and price.
How much do Koyfin and The Fly Pro cost?
Good news: both Koyfin and The Fly Pro have free plans, so you can run them side by side and only pay if you hit a wall.
Can I use Koyfin or The Fly Pro on my phone?
Koyfin lists a dedicated mobile app, so it travels better. The Fly Pro doesn't list a dedicated mobile app; its documented access is web.
Should I choose Koyfin or The Fly Pro?
It depends on what you're after. Pick Koyfin if ETF screeners and custom dashboards matter to you; go with The Fly Pro if you'd rather have stock comparison and macro data. And if you only need the basics both share, let price decide.
What asset classes do Koyfin and The Fly Pro cover?
Both cover stocks. Koyfin also handles ETFs, mutual funds, and closed-end funds.
Does Koyfin or The Fly Pro have real-time data?
Koyfin offers real-time data, which matters if you trade actively. The Fly Pro 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 The Fly Pro?
Koyfin exports to CSV. The Fly Pro is stingier about getting data out.
Which has a better stock screener: Koyfin or The Fly Pro?
Both Koyfin and The Fly Pro 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 Koyfin or The Fly Pro?
Koyfin handles portfolio tracking. The Fly Pro 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.