VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
13F Insight vs BuySide Digest - Hedge Fund Letter Database
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, regulatory filings monitoring, and insider data.
- You're a long-term investor who cares more about fundamentals than headlines
Pick BuySide Digest - Hedge Fund Letter Database instead if
BuySide Digest - Hedge Fund Letter Database
Free · Web
- You want stock ideas and newsletters.
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 and BuySide Digest - Hedge Fund Letter Database cover a lot of the same ground (4 shared categories, including watchlist, institutional ownership, and news), so for the basics you won't go far wrong with either. 13F Insight simply does more: 10 categories to BuySide Digest - Hedge Fund Letter Database's 6, including data visualizations, regulatory filings monitoring, and insider data. BuySide Digest - Hedge Fund Letter Database counters by being completely free.
What readers say
13F Insight
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BuySide Digest - Hedge Fund Letter Database
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Key differences at a glance
- Global coverage
- BuySide Digest - Hedge Fund Letter Database
- Broader coverage
- 13F Insight10 vs 6 categories
- API access
- 13F Insight
- Asset coverage
- 13F InsightAdds options and bonds
- 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 |
Broker sync | — | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +3 more | — |
Categories covered | 10 | 6 |
Regions | North America | North America, Europe, APAC |
| Data & capabilities | ||
Capabilities | AI summaries: Filings | — |
Security | Encryption in transit | — |
| Try it | Visit 13F Insight | Visit BuySide Digest - Hedge Fund Letter Database |
Where each one shines
What 13F Insight and BuySide Digest - Hedge Fund Letter Database each do best.ShowHide
Where each one shines
What 13F Insight and BuySide Digest - Hedge Fund Letter Database 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 BuySide Digest - Hedge Fund Letter Database does best
- Search tools across hedge-fund letters by fund, CIO, ticker, keyword, theme, and quarter.
- Direct access to per-fund pages to review letter history and follow manager commentary over time.
- Monitor funds or tickers to receive inbox updates when new letters are added.
- BSD 13F tools for investor screens, largest buys and sells, consensus holdings, GICS weights, and related ownership context.
- Reading access to Elevator Pitches that condense stock ideas surfaced from manager letters.
Every detail we compared
Every tracked attribute for 13F Insight and BuySide Digest - Hedge Fund Letter Database, side by side.ShowHide
Every detail we compared
Every tracked attribute for 13F Insight and BuySide Digest - Hedge Fund Letter Database, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsOptionsBonds | StocksETFs |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Retail TradersPro RetailValue InvestorsGrowth InvestorsAnalysts | Not specified |
Regions | North America | North AmericaEuropeAPAC |
Coverage details | Countries: USIdentifiers: Ticker, CUSIP, and CIK | Identifiers: Ticker |
| Access & integrations | ||
Export formats | Not specified | PDF |
| Plans & trust | ||
Security & compliance | Encryption in transit | Not specified |
Capability signals | AI summaries: Filings | Not specified |
Vendor & support | 13F InsightSupport: Email | BuySide DigestSupport: Email |
Curation ratings | Not specified | Methodology 3/5Reliability 3/5UX 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 | 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 BuySide Digest - Hedge Fund Letter Database?
13F Insight leans toward data visualizations, watchlist, and institutional ownership, while BuySide Digest - Hedge Fund Letter Database puts more weight on stock ideas, news, and newsletters. They overlap in 4 categories, so for most people it comes down to workflow preference and price.
How much do 13F Insight and BuySide Digest - Hedge Fund Letter Database cost?
Good news: both 13F Insight and BuySide Digest - Hedge Fund Letter Database have free plans, so you can run them side by side and only pay if you hit a wall.
Does 13F Insight or BuySide Digest - Hedge Fund Letter Database have an API?
13F Insight has an API for programmatic access and custom integrations. BuySide Digest - Hedge Fund Letter Database doesn't, so you're working through its interface.
Should I choose 13F Insight or BuySide Digest - Hedge Fund Letter Database?
It depends on what you're after. Pick 13F Insight if data visualizations and regulatory filings monitoring matter to you; go with BuySide Digest - Hedge Fund Letter Database if you'd rather have stock ideas and newsletters. And if you only need the basics both share, let price decide.
What asset classes do 13F Insight and BuySide Digest - Hedge Fund Letter Database cover?
Both cover stocks and ETFs. 13F Insight also handles options and bonds.
Which covers international markets: 13F Insight or BuySide Digest - Hedge Fund Letter Database?
BuySide Digest - Hedge Fund Letter Database has documented international coverage (North America, Europe, and APAC), so it's the safer bet if you hold non-US stocks. 13F Insight is more region-specific, mainly North America.
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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.