VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View FlowAlgo View OptionStrat Back to Home

Head-to-head

FlowAlgo vs OptionStrat comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

FlowAlgo adds Dark Pool & Off-Exchange coverage that OptionStrat skips.

OptionStrat includes News, Calendar, US Government Trades, Insider Data, and Options categories that FlowAlgo omits.

FlowAlgo highlights: Realtime monitoring of options order flow, with unusual activity detection and tracking of Intermarket Sweep Orders and option block trades., Equity block and dark pool order data, paired with a dedicated “Dark Pool Insights” module., and Dark pool data is delayed until officially reported; equity block data may lag ~20 minutes. Options flow itself streams with typical latency of half a second to 15 seconds..

OptionStrat is known for: Options strategy builder with profit calculators, chance of profit, net Greeks, and historical implied volatility (in real time on paid plans)., Strategy Optimizer searches thousands of trade setups by target price or date and ranks them by return or probability of profit., and Unusual options flow scanner detects multi-leg strategies (like spreads and condors), with saved filters, alerts, historical search, and performance tracking..

OptionStrat keeps a free entry point that FlowAlgo lacks.

OptionStrat offers mobile access, which FlowAlgo skips.

FlowAlgo

flowalgo.com

Realtime options order flow with equity block and dark pool data. All plans include the same feature set with monthly, quarterly, or annual billing. Paid trial available for two weeks. Dark pool prints are reported with delays (anywhere from hours to the next day), and equity block data can lag by up to ~20 minutes under exchange rules.

Platforms

Web

Pricing

Subscription

Quick highlights

Realtime monitoring of options order flow, with unusual activity detection and tracking of Intermarket Sweep Orders and option block trades.
Equity block and dark pool order data, paired with a dedicated “Dark Pool Insights” module.
Dark pool data is delayed until officially reported; equity block data may lag ~20 minutes. Options flow itself streams with typical latency of half a second to 15 seconds.
Alpha AI signals during market hours, flagging predictive momentum shifts and Long/Short/Hedge opportunities.
Historical database with access back to mid-2017, including prior days’ flow activity.

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OptionStrat

optionstrat.com

Options strategy builder and unusual flow scanner with plan-based feature tiers. The free plan provides delayed quotes and limited flow. Paid plans unlock real-time builder tools, full unusual flow with alerts, live news, and insider/Congress trades. Live data is available only for non-professional users, with a 7-day free trial on paid plans.

Platforms

Web

Mobile

Pricing

Free

Subscription

Quick highlights

Options strategy builder with profit calculators, chance of profit, net Greeks, and historical implied volatility (in real time on paid plans).
Strategy Optimizer searches thousands of trade setups by target price or date and ranks them by return or probability of profit.
Unusual options flow scanner detects multi-leg strategies (like spreads and condors), with saved filters, alerts, historical search, and performance tracking.
Plan tiers: Free includes 15-minute delayed data and about 10% of flow; Live Tools adds real-time builder and optimizer features; Live Flow adds real-time flow, alerts, insider and Congress trades, and live news.
Market events integrated directly into the builder, including earnings and ex-dividend dates.

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Overlap

Shared focus areas

2 overlaps

Mutual strengths include Options & Derivatives, and Alerts.

Where they differ

FlowAlgo

Distinct strengths include:

Dark Pool & Off-Exchange

Realtime monitoring of options order flow, with unusual activity detection and tracking of Intermarket Sweep Orders and option block trades.
Equity block and dark pool order data, paired with a dedicated “Dark Pool Insights” module.
Dark pool data is delayed until officially reported; equity block data may lag ~20 minutes. Options flow itself streams with typical latency of half a second to 15 seconds.
Alpha AI signals during market hours, flagging predictive momentum shifts and Long/Short/Hedge opportunities.

OptionStrat

Distinct strengths include:

Options strategy builder with profit calculators, chance of profit, net Greeks, and historical implied volatility (in real time on paid plans).
Strategy Optimizer searches thousands of trade setups by target price or date and ranks them by return or probability of profit.
Unusual options flow scanner detects multi-leg strategies (like spreads and condors), with saved filters, alerts, historical search, and performance tracking.
Plan tiers: Free includes 15-minute delayed data and about 10% of flow; Live Tools adds real-time builder and optimizer features; Live Flow adds real-time flow, alerts, insider and Congress trades, and live news.

Feature-by-feature breakdown

Attribute	FlowAlgo	OptionStrat
Categories Which research workflows each platform targets	Shared: Options & Derivatives, Alerts Unique: Dark Pool & Off-Exchange	Shared: Options & Derivatives, Alerts Unique: News, Calendar, US Government Trades, Insider Data, Options
Asset types Supported asset classes and universes	Stocks, ETFs, Options	Options, Stocks, Futures
Experience levels Who each product is built for	Beginner, Intermediate, Advanced	Beginner, Intermediate, Advanced
Platforms Where you can access the product	Web	Web, Mobile
Pricing High-level pricing models	Subscription	Free, Subscription
Key features Core capabilities called out by each vendor	Unique Realtime monitoring of options order flow, with unusual activity detection and tracking of Intermarket Sweep Orders and option block trades. Equity block and dark pool order data, paired with a dedicated “Dark Pool Insights” module. Dark pool data is delayed until officially reported; equity block data may lag ~20 minutes. Options flow itself streams with typical latency of half a second to 15 seconds. Alpha AI signals during market hours, flagging predictive momentum shifts and Long/Short/Hedge opportunities. Historical database with access back to mid-2017, including prior days’ flow activity. FlowAlgo Levels (“Institutional Zones”), highlighting support and resistance from historical block and dark pool transactions.	Unique Options strategy builder with profit calculators, chance of profit, net Greeks, and historical implied volatility (in real time on paid plans). Strategy Optimizer searches thousands of trade setups by target price or date and ranks them by return or probability of profit. Unusual options flow scanner detects multi-leg strategies (like spreads and condors), with saved filters, alerts, historical search, and performance tracking. Plan tiers: Free includes 15-minute delayed data and about 10% of flow; Live Tools adds real-time builder and optimizer features; Live Flow adds real-time flow, alerts, insider and Congress trades, and live news. Market events integrated directly into the builder, including earnings and ex-dividend dates. Futures flow included with coverage of contracts like ES, GC, BTC, and 6E (data delayed ~15 minutes).
Tested Verified by hands-on testing inside Find My Moat	Not yet	Not yet
Editor pick Featured inside curated shortlists	Standard listing	Standard listing

Frequently Asked Questions

Which workflows do FlowAlgo and OptionStrat both support?

Both platforms cover Options & Derivatives, and Alerts workflows, so you can research those use cases in either tool before digging into the feature differences below.

Which tool offers a free plan?

OptionStrat offers a free entry point, while FlowAlgo requires a paid subscription. Review the pricing table to see how the paid tiers compare.

Which tool has mobile access?

OptionStrat ships a dedicated mobile experience, while FlowAlgo focuses on web or desktop access.

What unique strengths set the two platforms apart?

FlowAlgo differentiates itself with Realtime monitoring of options order flow, with unusual activity detection and tracking of Intermarket Sweep Orders and option block trades., Equity block and dark pool order data, paired with a dedicated “Dark Pool Insights” module., and Dark pool data is delayed until officially reported; equity block data may lag ~20 minutes. Options flow itself streams with typical latency of half a second to 15 seconds., whereas OptionStrat stands out for Options strategy builder with profit calculators, chance of profit, net Greeks, and historical implied volatility (in real time on paid plans)., Strategy Optimizer searches thousands of trade setups by target price or date and ranks them by return or probability of profit., and Unusual options flow scanner detects multi-leg strategies (like spreads and condors), with saved filters, alerts, historical search, and performance tracking..

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Stay on top of related tools

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