★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Friday, June 12, 2026
Tool Comparison · Friday, June 12, 2026
Danelfin vs WhaleWisdom
Trying to decide between Danelfin and WhaleWisdom? Here's how they compare on pricing, features, and platforms — and which one fits the way you invest.
Danelfin
Best for portfolio and watchlist
AI-driven scoring and ranking platform for U.S.-listed stocks, ETFs, and the STOXX 600 in Europe. Offers Free, Plus, Pro, and Elite web tiers alongside API-only plans. Historical daily AI Scores are available back to 2017 for Elite/API users. Scores refresh end-of-day, typically about 15 hours after the U.S. close. CSV export, broker portfolio sync, and JSON API access are plan-gated.
WhaleWisdom
Best for institutional data and 13f
Aggregates 13F filings, Schedule 13D/G data, Form 4 insider activity, and institutional ownership tools so investors can follow fund positioning, build watchlists/filer groups, export data, and backtest crowding strategies. Free access remains available with limited tools and recent 13F history; the pricing page says there are no trial accounts, while much of the site can be explored for free. Current paid plans are Standard at $90/quarter or $300/year, Pro at $150/quarter or $500/year, and Enterprise by quote for team access, unlimited 13F API access, live data feed calls, and nightly FTP files.
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The verdict
The bottom line: Danelfin and WhaleWisdom cover a lot of the same ground — 4 shared categories, including stock ideas, screeners, and alerts — so for the basics you won't go far wrong with either. WhaleWisdom simply does more — 12 categories to Danelfin's 8, including institutional data, 13f, and 13d/13g. Danelfin counters by starting cheaper at $17/mo.
Key differences at a glance
Free plan
Both
Both have one
Cheaper paid plan
Danelfin
$17/mo vs $25/mo
Broader coverage
WhaleWisdom
12 vs 8 categories
Desktop app
WhaleWisdom
WhaleWisdom only
Choose
Danelfin if…
- You want the cheaper way in — plans start at $17/mo instead of $25/mo
- You care about portfolio, watchlist, and scores — things WhaleWisdom doesn't offer
Choose
WhaleWisdom if…
- You care about institutional data, 13f, and 13d/13g — things Danelfin doesn't offer
- You want more under one roof — 12 categories to Danelfin's 8
Consider alternatives if…
- You'd rather have one tool that does it all.
- Neither price feels right for what you'd get.
Comparison snapshot
Standout features
What Danelfin does best
- AI Score (1–10) estimates the probability of a stock or ETF outperforming the market over the next three months, based on daily analysis of ~10,000 features per stock across technical, fundamental, and sentiment data.
- Coverage includes U.S.-listed stocks and ETFs as well as STOXX 600 European stocks, with historical daily AI Scores available since 2017.
- REST API with API key authentication and JSON output.
- API plans (Basic, Expert, Elite) differ by monthly call quotas and rate limits - current annual pricing shows 1,000, 10,000, and 100,000 calls per month with 120, 240, and 1,200 calls/minute respectively.
- Web tiers: Free, Plus, Pro, and Elite.
What WhaleWisdom does best
- Track and analyze hedge-fund and institutional SEC filings including 13F quarterly reports, Schedule 13D/G events, Form 4 insider transactions, Form D, Form 144, N-CEN mutual-fund search, and Investment Adviser/Form ADV search tools.
- Free tier advertises past two years of 13F data, unlimited email alerts, filer groups up to 5 members, stock watchlists up to 5 stocks, backtesting over recent 13F history, and limited access to most site tools.
- 13F database history goes back to the March 31, 2001 quarter / Q1 2001; Standard and Pro unlock earlier historical 13F data, while Standard also lists historical 13D/G data back to 2006.
- Developer API uses the endpoint https://whalewisdom.com/shell/command, requires a registered account and API access keys/signatures or an authenticated browser session, and is limited to 20 requests per minute.
- API commands include quarters, stock_lookup, filer_lookup, stock_comparison, holdings_comparison, export, holdings, holders, and filer_metadata; outputs include HTML, JSON, and CSV depending on command.
Data & access details
| Attribute | Danelfin | WhaleWisdom |
|---|---|---|
Asset types | StocksETFs | StocksETFsClosed-End FundsBondsOptions |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | North AmericaEurope | North America |
Data freshness | End of Day | Not specified |
API access | REST | REST |
Export formats | CSVJSON | CSVExcelJSON |
Seen enough? The fastest way to decide is to open both and poke around for five minutes.
Pricing breakdown
Tool
Danelfin
$17/mo
Starting price
Plans & pricing
Tool
WhaleWisdom
$25/mo
Starting price
Plans & pricing
Coverage overlap
What you only get with WhaleWisdom.
Community category leaders
Vote sentiment comparison
Loading sentiment chart...
Still deciding? Get hands-on with both — most plans offer a free tier or trial.
Frequently Asked Questions
What's the difference between Danelfin and WhaleWisdom?
Danelfin leans toward stock ideas, screeners, and portfolio, while WhaleWisdom puts more weight on institutional data, 13f, and 13d/13g. They overlap in 4 categories, so for most people it comes down to workflow preference and price.
How much do Danelfin and WhaleWisdom cost?
Good news — both Danelfin and WhaleWisdom have free plans, so you can run them side by side and only pay if you hit a wall.
Do Danelfin and WhaleWisdom have APIs?
Yes — both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose Danelfin or WhaleWisdom?
It depends on what you're after. Pick Danelfin if portfolio and watchlist matter to you; go with WhaleWisdom if you'd rather have institutional data and 13f. And if you only need the basics both share, let price decide.
What asset classes do Danelfin and WhaleWisdom cover?
Both cover stocks and ETFs. WhaleWisdom adds closed-end funds, bonds, and options on top.
Can I export data from Danelfin and WhaleWisdom?
Yes, both export to spreadsheets (CSV and JSON) — handy if you like running your own numbers.
Which has a better stock screener—Danelfin or WhaleWisdom?
Both Danelfin and WhaleWisdom 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 Danelfin or WhaleWisdom?
Danelfin handles portfolio tracking. WhaleWisdom is really a research tool — you'd track your portfolio elsewhere.
Other tools you might like
These profiles share overlapping coverage with both sides of this matchup.
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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.