VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Source checks: 13f.info checked September 30, 2026 · 13F Insight checked September 24, 2026
Tool Comparison
13f.info vs 13F Insight
- Paid from
- —
- Free plan
- Yes
- Platforms
- Web
Best if
- You want improved filings.
- Paid from
- $29/mo
- Free plan
- Yes
- Platforms
- Web, API
Best if
- You want an API so you can script or automate things
- You want watchlist, regulatory filings monitoring, and news.
- You've outgrown the basics and want pro-level depth
Pick 13f.info instead if
13f.info
Free · Web
- You want improved filings.
Start here
13F Insight
Free • From $29/mo · Web · API
- You want an API so you can script or automate things
- You want watchlist, regulatory filings monitoring, and news.
- You've outgrown the basics and want pro-level depth
Skip both if: Neither one clicks with how you research; there are strong third options.
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Our take
The bottom line
13f.info and 13F Insight cover a lot of the same ground (2 shared categories, institutional ownership and data visualizations), so for the basics you won't go far wrong with either. 13F Insight simply does more: 10 categories to 13f.info's 3, including watchlist, regulatory filings monitoring, and news. 13f.info counters by being completely free.
What readers say
13f.info
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13F Insight
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Key differences at a glance
- API access
- 13F Insight
- Free trial
- 13F Insight7 days
- Broader coverage
- 13F Insight10 vs 3 categories
- Free plan
- Both
What 13f.info does best
- Find institutional portfolio disclosures.
- Inspect reported position changes.
- Trace a manager's reported investment over time.
- Find managers reporting a specific holding.
- Follow links to original SEC documents.
What 13F Insight does best
- Track 13F holdings, Form 4 insider trades, and 13D/G ownership reports in one place.
- Search 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 Standard position-change analysis or Pro AI summaries and smart alerts as a first pass.
- Build filer and stock watchlists.
Side by side
Pricing comparison
See for yourself
Side by side
Price, platforms, data, and market coverage.ShowHide
Side by side
| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free | Free • From $29/mo |
Free tier | Yes | Yes |
Free trial | — | 7 days |
Plan limits | — | 14 limits: Free: watchlist items: 5, Free: email alerts: 3 +12 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | No | Yes |
| Audience & fit | ||
Experience level | Beginner, Intermediate | Beginner, Intermediate, Advanced |
Best for | Value Investors, Analysts +1 more | Retail Traders, Pro Retail +3 more |
Categories covered | 3 | 10 |
Regions | — | North America |
| Data & capabilities | ||
Capabilities | — | AI summaries: Filings |
Security | — | Encryption in transit |
| Try it | Visit 13f.info | Visit 13F Insight |
Standout features
The best features of 13f.info and 13F Insight.ShowHide
Standout features
What 13f.info does best
- Find institutional portfolio disclosures.
- Inspect reported position changes.
- Trace a manager's reported investment over time.
- Find managers reporting a specific holding.
- Follow links to original SEC documents.
What 13F Insight does best
- Track 13F holdings, Form 4 insider trades, and 13D/G ownership reports in one place.
- Search 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 Standard position-change analysis or Pro AI summaries and smart alerts as a first pass.
- Build filer and stock watchlists.
All details
Every attribute we track for 13f.info and 13F Insight.ShowHide
All details
| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsOptions | StocksETFsOptions |
Experience | BeginnerIntermediate | BeginnerIntermediateAdvanced |
Target audience | Value InvestorsAnalystsStudents/Researchers | Retail TradersPro RetailValue InvestorsGrowth InvestorsAnalysts |
Regions | Not specified | North America |
Coverage details | Identifiers: CUSIP and CIK | Countries: USIdentifiers: Ticker, CUSIP, and CIK |
| Plans & trust | ||
Security & compliance | Not specified | Encryption in transit |
Capability signals | Not specified | AI summaries: Filings |
Vendor & support | Support: Email | 13F InsightSupport: Email |
Green tags are exclusive to that tool in this comparison.
Pricing
Plans, billing, free trials, and monthly prices.ShowHide
Pricing
| Tier | ||
|---|---|---|
| Free plan | Free | Freewatchlist items: 5 · email alerts: 3 · +2 more |
| Entry paid plan | — | $29/mo“Standard”watchlist items: 20 · email alerts: 10 · +3 more |
| Top plan | — | $99/mo“Pro”watchlist items: 100 · email alerts: 50 · +3 more |
| Custom / enterprise | — | Contact sales“Enterprise” |
| Free trial | — | 7 days |
Alternatives
Free alternatives
Questions we keep getting
What's the difference between 13f.info and 13F Insight?
13f.info leans toward institutional ownership, improved filings, and data visualizations, while 13F Insight puts more weight on data visualizations, watchlist, and institutional ownership. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
How much do 13f.info and 13F Insight cost?
Good news: both 13f.info and 13F Insight 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.info or 13F Insight?
Honestly, neither is aimed at beginners. Expect a learning curve either way; that's the trade-off for the depth they offer.
Does 13f.info or 13F Insight have an API?
13F Insight has an API for programmatic access and custom integrations. 13f.info doesn't, so you're working through its interface.
Should I choose 13f.info or 13F Insight?
It depends on what you're after. Pick 13f.info if improved filings matter to you; go with 13F Insight if you'd rather have watchlist and regulatory filings monitoring. And if you only need the basics both share, let price decide.
Are 13f.info and 13F Insight good for long-term investing?
Yes, both are aimed squarely at long-term investors. Compare their coverage, workflow, and price before assuming they solve the same long-term research job.
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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.