VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
13F Insight vs PCAOB AuditorSearch
Start here
13F Insight
Free • Contact for pricing · Web · API
- You want an API so you can script or automate things
- You want data visualizations, watchlist, and institutional ownership.
- You've outgrown the basics and want pro-level depth
Pick PCAOB AuditorSearch instead if
PCAOB AuditorSearch
Free · Web
- You want official sources.
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
13F Insight simply does more: 10 categories to PCAOB AuditorSearch's 2, including data visualizations, watchlist, and institutional ownership. PCAOB AuditorSearch 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
13F Insight
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PCAOB AuditorSearch
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Key differences at a glance
- Asset coverage
- 13F InsightAdds ETFs and options
- Broader coverage
- 13F Insight10 vs 2 categories
- API access
- 13F Insight
- 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 • Contact for pricing | Free |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | 3 limits: Free: watchlist items: 5, Standard: watchlist items: 20 +1 more | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | Yes | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate |
Best for | Retail Traders, Pro Retail +3 more | Retail Traders, Analysts +2 more |
Categories covered | 10 | 2 |
Regions | North America | — |
| Data & capabilities | ||
Capabilities | AI summaries: Filings | — |
Security | Encryption in transit | — |
| Try it | Visit 13F Insight | Visit PCAOB AuditorSearch |
Where each one shines
What 13F Insight and PCAOB AuditorSearch each do best.ShowHide
Where each one shines
What 13F Insight and PCAOB AuditorSearch each do best.What 13F Insight does best
- Track 13F holdings, Form 4 insider trades, and 13D/G ownership reports in one place.
- Search filing history for more than 30,000 institutional filers, with AUM, holdings, and position-change views.
- Ask the AI Agent questions about a filer, stock, or insider and follow its citations back to the filings.
- Use AI summaries, position-change analysis, and unusual-activity alerts as a first pass.
- Build filer and stock watchlists.
What PCAOB AuditorSearch does best
- Search Form AP data to identify the firm and engagement partner associated with a U.S. public-company audit report.
- Find issuers by company name, CIK, or ticker in the web interface.
- Find audit firms by name, PCAOB ID, or country and review their reported public-company audits.
- Search by engagement-partner name to review associated public-company audit reports.
- Apply filing-date filters in advanced search to limit results to a reporting period.
Every detail we compared
Every tracked attribute for 13F Insight and PCAOB AuditorSearch, side by side.ShowHide
Every detail we compared
Every tracked attribute for 13F Insight and PCAOB AuditorSearch, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsOptionsBonds | Stocks |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediate |
Target audience | Retail TradersPro RetailValue InvestorsGrowth InvestorsAnalysts | Retail TradersAnalystsInstitutional InvestorsStudents/Researchers |
Regions | North America | Not specified |
Coverage details | Countries: USIdentifiers: Ticker, CUSIP, and CIK | Countries: USIdentifiers: CIK and Ticker |
| Access & integrations | ||
Export formats | Not specified | CSV |
| Plans & trust | ||
Security & compliance | Encryption in transit | Not specified |
Capability signals | AI summaries: Filings | Not specified |
Vendor & support | 13F InsightSupport: Email | Public Company Accounting Oversight Board (PCAOB)Country: United States |
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 | Freewatchlist items: 5 | Free |
| Entry paid plan | Subscription“Standard”watchlist items: 20 | — |
| Top plan | Subscription“Pro”watchlist items: 100 | — |
| Custom / enterprise | Contact sales“Enterprise” | — |
Questions we keep getting
What's the difference between 13F Insight and PCAOB AuditorSearch?
13F Insight leans toward data visualizations, watchlist, and institutional ownership, while PCAOB AuditorSearch puts more weight on regulatory filings monitoring and official sources. They overlap in 1 categories, so for most people it comes down to workflow preference and price.
How much do 13F Insight and PCAOB AuditorSearch cost?
Good news: both 13F Insight and PCAOB AuditorSearch have free plans, so you can run them side by side and only pay if you hit a wall.
Which is better for beginners: 13F Insight or PCAOB AuditorSearch?
Honestly, neither is aimed at beginners. Expect a learning curve either way; that's the trade-off for the depth they offer.
Does 13F Insight or PCAOB AuditorSearch have an API?
13F Insight has an API for programmatic access and custom integrations. PCAOB AuditorSearch doesn't, so you're working through its interface.
Should I choose 13F Insight or PCAOB AuditorSearch?
It depends on what you're after. Pick 13F Insight if data visualizations and watchlist matter to you; go with PCAOB AuditorSearch if you'd rather have official sources. And if you only need the basics both share, let price decide.
What asset classes do 13F Insight and PCAOB AuditorSearch cover?
Both cover stocks. 13F Insight also handles ETFs, options, and bonds.
Can I export data from 13F Insight and PCAOB AuditorSearch?
PCAOB AuditorSearch exports to CSV. 13F Insight is stingier about getting data out.
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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.