★ BEST INVESTING TOOLS COMPARISON ★

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Tool comparison edition

Tool Comparison

InsideArbitrage vs Koyfin

InsideArbitrage logo

InsideArbitrage

insidearbitrage.com

Best for corporate actions & special situations and dividends

From $100/mo

versus
Koyfin logo

Koyfin

koyfin.comPickTested

Best for ETF screeners and custom dashboards

Free • From $39/mo

InsideArbitrageKoyfin
WebPlatformsWebMobile
No votes yetCommunity+12 (24)

Outbound links may include affiliate or sponsor codes.

The verdict

The bottom line

InsideArbitrage and Koyfin cover a lot of the same ground (7 shared categories, including news, alerts, and calendar), so for the basics you won't go far wrong with either. The real difference is focus: only InsideArbitrage gives you corporate actions & special situations and dividends, and only Koyfin gives you ETF screeners and custom dashboards.

Key differences at a glance

Mobile app
Koyfin
Free plan
Koyfin
Cheaper paid plan
Koyfin$39/mo vs $100/mo
Broker sync
Koyfin
Global coverage
Koyfin
Asset coverage
KoyfinAdds mutual funds and closed-end funds
See the full side-by-side table
InsideArbitrage logo

Choose

InsideArbitrage if…

  • You care about corporate actions & special situations, dividends, and splits, things Koyfin doesn't offer
Koyfin logo

Choose

Koyfin if…

  • You do a lot of your research from your phone
  • You'd rather start free and only pay if you outgrow it
  • You want the cheaper way in: plans start at $39/mo instead of $100/mo
  • You care about ETF screeners, custom dashboards, and correlation, things InsideArbitrage doesn't offer

Comparison snapshot

Side-by-side comparison of InsideArbitrage and Koyfin
Attribute
InsideArbitrage logo
InsideArbitrage
Koyfin logo
Koyfin
Pricing & plans
Starting price
From $100/moFree • From $39/mo
Free tier
NoYes
Free trial
Plan limits
24 limits: Free: watchlists: 2, Free: screens: 2 +22 more
Platforms & access
Web app
YesYes
Mobile app
NoYes
API access
NoNo
Broker sync
NoYes
Integrations
Schwab, Altruist +6 more
Audience & fit
Experience level
Beginner, Intermediate, AdvancedBeginner, Intermediate, Advanced
Best for
Retail Traders, Pro Retail +6 more
Categories covered
1820
Regions
North AmericaNorth America, Europe, APAC, LatAm, Middle East, Africa
Data & capabilities
Data quality
4 signals: Latency: Real-time and End of Day, Granularity: EOD +2 moreLatency: 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
Universe builder7 signals: Universe builder, Broker sync +5 more
Security
4 signals: SOC2, Data residency: US +2 more
Try itVisit InsideArbitrageVisit Koyfin

Standout features

InsideArbitrage logo

What InsideArbitrage does best

  1. Track announced merger-arbitrage deals with spread context, calendars, deal updates, Deals in the Works, and post-mortem research.
  2. Use tracked-deal workflows to filter relevant news, SEC filings, and tweets around the active-deal symbols a premium user follows.
  3. Research insider activity with Insider Weekends, cluster buys, buys near highs, flip-floppers, top-performing insiders, sector heat maps, and premium insider screens.
  4. Monitor buyback situations through daily buyback announcements, searchable buyback history, Buyback Wednesdays, and Double Dipper screens that combine insider buying with repurchases.
  5. Follow spinoffs, completed spinoffs, Spinsider ideas, CVR deals, CVR outcomes, tender offers, reverse splits, activist campaigns, C-suite transitions, and M&A news feeds.
Koyfin logo

What Koyfin does best

  1. Build customizable dashboards, watchlists, charts, and market monitors across global equities, ETFs, funds, fixed income, FX, commodities, crypto, indices, and economics.
  2. 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.
  3. Use advanced charts with technical indicators, fundamentals, valuation measures, analyst estimates, price targets, templates, sharing, and downloads where vendor licenses allow.
  4. Research companies with financial analysis pages, customizable financial templates, news, filings, transcripts, analyst data, short interest, and AI transcript summaries on paid plans.
  5. Track portfolios with grouping, notes, summary rows, alerts, custom data series, uploaded CSV price history, and mobile portfolio monitoring.

Data & access details

Attribute
InsideArbitrage logo
InsideArbitrage
Koyfin logo
Koyfin
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: USExchanges: XNYS, XNAS, and ARCXIdentifiers: Ticker and CIK
Identifiers: Ticker
Data
Data freshness
Real-timeEnd of Day
Real-time15-min DelayedEnd of Day
Data granularity
EOD
Not specified
Data partners
Not specified
S&P Global Market IntelligenceMorningstarFREDTrading EconomicsTrueFXPolygon.io
Access & integrations
Import methods
Manual
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
Universe builder
Universe builderBroker syncYield curvesAI summaries: TranscriptsHouseholdingModel portfoliosClient reporting
Vendor & support
InsideArbitrageCountry: USSupport: 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.

Pricing breakdown

InsideArbitrage logo
InsideArbitrage

$100/mo

Starting price

Free tierNo
Free trial

Plans & pricing

Premium – Monthly$150/mo
Premium – Annual$100/mo
IA Professional (4 seats)$400/mo
IA Professional – Annual$300/mo
Koyfin logo
Koyfin

$39/mo

Lower starting price

Free tierYes
Free trial

Plans & pricing

FreeFree
  • watchlists: 2
  • screens: 2
  • +5 more
Plus$39/mo
  • financials years: 10
  • estimates years: 10
  • +5 more
Premium$79/mo
  • alerts: 500
  • custom securities: Unlimited
Advisor Core$209/mo
  • alerts: 500
  • reports per month: 10
  • +2 more
Advisor Pro$299/mo
  • alerts: 500
  • reports per month: 200
  • +2 more
TeamsContact sales

Coverage overlap

Community category leaders

ScreenersNo leader yet
PortfolioNo leader yet
WatchlistKoyfin
NewsNo leader yet
AlertsNo leader yet
DividendsNo leader yet
FinancialsNo leader yet
Insider DataNo leader yet
Short InterestNo leader yet
TranscriptsNo leader yet
Advisor OperationsNo leader yet
AI ResearchNo leader yet
Analyst ForecastsNo leader yet
BlogsNo leader yet
CalendarNo leader yet
CorrelationNo leader yet
Custom DashboardsNo leader yet
ETF AnalysisNo leader yet
ETF ScreenersNo leader yet
Fund AnalysisNo leader yet
NewslettersNo leader yet
PDF AnnotationNo leader yet
SplitsNo leader yet
VideosNo leader yet
Yield CurvesNo leader yet
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Frequently Asked Questions

What's the difference between InsideArbitrage and Koyfin?

InsideArbitrage leans toward news, alerts, and calendar, while Koyfin puts more weight on screeners, ETF screeners, and data visualizations. They overlap in 7 categories, so for most people it comes down to workflow preference and price.

Is InsideArbitrage or Koyfin free to use?

Koyfin has a free tier, so you can get started without paying anything. InsideArbitrage is paid-only. If budget matters, start with Koyfin and see how far it takes you before opening your wallet.

Can I use InsideArbitrage or Koyfin on my phone?

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

Should I choose InsideArbitrage or Koyfin?

It depends on what you're after. Pick InsideArbitrage if corporate actions & special situations and dividends matter to you; go with Koyfin if you'd rather have ETF screeners and custom dashboards. And if you only need the basics both share, let price decide.

What asset classes do InsideArbitrage and Koyfin cover?

Both cover stocks and ETFs. Koyfin adds mutual funds, closed-end funds, and bonds on top.

Do InsideArbitrage and Koyfin offer real-time data?

Yes, both serve real-time market data, so either works when timing matters.

Which covers international markets: InsideArbitrage 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. InsideArbitrage is more region-specific, mainly North America.

Can I export data from InsideArbitrage and Koyfin?

Koyfin exports to CSV. InsideArbitrage is stingier about getting data out.

Can InsideArbitrage or Koyfin connect to my broker?

Koyfin syncs with brokers automatically. With InsideArbitrage, you're entering holdings by hand or importing files.

Which has a better stock screener: InsideArbitrage or Koyfin?

Both InsideArbitrage 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 InsideArbitrage or Koyfin?

Yes, both do portfolio tracking: holdings, performance, and allocation in one place.

Top 50 Investing ToolsSee where these two land in our community-voted ranking of the best investing tools.

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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.