★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
CatalystWire vs Unusual Whales
Pick CatalystWire instead if
CatalystWire
Free · Web
- You care about regulatory filings monitoring, something Unusual Whales doesn't offer
Start here
Unusual Whales
Free • From $504/yr · Web · Mobile · API
- You do a lot of your research from your phone
- You want an API so you can script or automate things
- You care about options, money flow, and screeners, things CatalystWire doesn't offer
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
CatalystWire and Unusual Whales cover a lot of the same ground (3 shared categories, news, alerts, and AI research), so for the basics you won't go far wrong with either. Unusual Whales simply does more: 12 categories to CatalystWire's 4, including options, money flow, and screeners, plus a mobile app. CatalystWire counters by being completely free.
What readers say
CatalystWire
Vote once to reveal the community verdict.
Unusual Whales
Vote once to reveal the community verdict.
Key differences at a glance
- Mobile app
- Unusual Whales
- Free trial
- Unusual Whales7 days
- Broader coverage
- Unusual Whales12 vs 4 categories
- API access
- Unusual Whales
- Global coverage
- CatalystWire
- Asset coverage
- Unusual WhalesAdds options and ETFs
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 | Free • From $504/yr |
Free tier | Yes | Yes |
Free trial | — | 7 days |
Plan limits | — | API Trial - Basic: requests per day: 30,000 and API Trial - Basic: historical lookback days: 90 |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | Yes |
API access | No | Yes |
Integrations | — | Discord, X (Twitter) +3 more |
| Audience & fit | ||
Experience level | Intermediate, Advanced | Intermediate, Advanced |
Best for | Swing Traders and Pro Retail | Retail Traders, Pro Retail +3 more |
Categories covered | 4 | 12 |
Regions | Europe | North America |
| Data & capabilities | ||
Data quality | Latency: Real-time and Streaming | 3 signals: Latency: Streaming and Real-time, Granularity: Minute and EOD +1 more |
Capabilities | — | 3 signals: Universe builder, Multi-leg options +1 more |
| Try it | Visit CatalystWire | Visit Unusual Whales |
Where each one shines
What CatalystWire and Unusual Whales each do best.ShowHide
Where each one shines
What CatalystWire and Unusual Whales each do best.What CatalystWire does best
- Scan London Stock Exchange RNS announcements for potential investment catalysts.
- AI-powered semantic search to find announcements by meaning rather than only exact keywords.
- Keyword discovery when you already know the term, company, or announcement type you want to monitor.
- Tracking real-time categorization of RNS announcements such as management changes and turnarounds where supported.
- Support for setting up instant catalyst alerts through the web app flow described in the public signup messaging.
What Unusual Whales does best
- Tracking U.S. options flow with trade details, exchange data, filters, configurable columns, sorting, and saved trades.
- Multi-leg tagging in the flow feed and open trades in an options profit calculator for payoff and P/L context.
- Monitoring dark pool and off-exchange activity, with market-tide, lit/off-lit, and related flow feeds available where the plan supports them.
- Tools for building alerts across the website, mobile apps, and Discord; free alerts are delayed and limited, while premium alerts are faster and broader.
- Stock and options screeners for unusual volume, options activity, premium, volume, open interest, implied volatility, greeks, and related filters.
Every detail we compared
Every tracked attribute for CatalystWire and Unusual Whales, side by side.ShowHide
Every detail we compared
Every tracked attribute for CatalystWire and Unusual Whales, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | Stocks | OptionsStocksETFsCryptos |
Experience | IntermediateAdvanced | IntermediateAdvanced |
Target audience | Swing TradersPro Retail | Retail TradersPro RetailDay TradersSwing TradersAlgo Traders |
Regions | Europe | North America |
Coverage details | Countries: GBIdentifiers: Ticker and ISIN | Countries: USIdentifiers: Ticker |
| Data | ||
Data freshness | Real-timeStreaming | StreamingReal-time |
Data granularity | Not specified | MinuteEOD |
| Access & integrations | ||
API protocols | Not specified | RESTWebSocket |
API auth & delivery | Not specified | Auth: APIKeyDocs |
Integrations | Not specified | DiscordX (Twitter)MCP ServerOpenAPIAI Skills |
| Plans & trust | ||
Capability signals | Not specified | Universe builderMulti-leg optionsGreeks |
Vendor & support | CatalystWire | Unusual Whales IncSupport: Email |
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 | Free“Public scanner” | Free“Free (limited)” |
| Entry paid plan | — | $504/yr≈ $42/mo“Retail Basic (Annual)” |
| Tier 2 | — | $50/mo“Retail Basic (Monthly)” |
| Tier 3 | — | $150/mo“API Access” |
| Tier 4 | — | $250/mo“Historical Option Trades” |
| Top plan | — | $375/mo“API Advanced (WebSocket streaming)” |
| Free trial | — | 7 days |
Questions we keep getting
What's the difference between CatalystWire and Unusual Whales?
CatalystWire leans toward news, regulatory filings monitoring, and alerts, while Unusual Whales puts more weight on options, money flow, and screeners. They overlap in 3 categories, so for most people it comes down to workflow preference and price.
How much do CatalystWire and Unusual Whales cost?
Good news: both CatalystWire and Unusual Whales have free plans, so you can run them side by side and only pay if you hit a wall.
Can I use CatalystWire or Unusual Whales on my phone?
Unusual Whales lists a dedicated mobile app, so it travels better. CatalystWire doesn't list a dedicated mobile app; its documented access is web.
Does CatalystWire or Unusual Whales have an API?
Unusual Whales has an API for programmatic access and custom integrations. CatalystWire doesn't, so you're working through its interface.
Should I choose CatalystWire or Unusual Whales?
It depends on what you're after. Pick CatalystWire if regulatory filings monitoring matter to you; go with Unusual Whales if you'd rather have options and money flow. And if you only need the basics both share, let price decide.
What asset classes do CatalystWire and Unusual Whales cover?
Both cover stocks. Unusual Whales adds options, ETFs, and cryptos on top.
Do CatalystWire and Unusual Whales offer real-time data?
Yes, both serve real-time market data, so either works when timing matters.
Which covers international markets: CatalystWire or Unusual Whales?
CatalystWire has documented international coverage (Europe), so it's the safer bet if you hold non-US stocks. Unusual Whales is more region-specific, mainly North America.
Is CatalystWire or Unusual Whales better for day trading?
Unusual Whales is the one positioned more for active traders. CatalystWire is the better fit if you care less about fast trading workflows and more about a calmer research process.
Which has a better stock screener: CatalystWire or Unusual Whales?
Unusual Whales has a stock screener for surfacing ideas; CatalystWire doesn't, and focuses its energy elsewhere.
Keep researching
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Feedback
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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.