FlowAlgo
flowalgo.com
A browser-based options flow feed of sweeps, blocks and dark pool prints, sold as one all-inclusive plan with a paid two-week trial instead of a free tier.
What it is
FlowAlgo watches the options and equity tape for orders that look institutional: intermarket sweeps split across exchanges, privately negotiated option blocks, large equity blocks and dark pool prints. Notable orders appear in a live feed with highlighting and filters, and a history search lets you look up past orders by ticker and date back to June 2017.
There is one product and every billing period includes the same features: real-time option flow, dark pool and block data, the Alpha AI signals, FlowAlgo Levels, day recaps, voice alerts, the historical data tool and a trader chatroom. The only choice is how you pay: monthly, quarterly or annually, with the annual plan working out about a third cheaper than monthly.
Before paying, note the delays FlowAlgo itself states. Real-time option data arrives between half a second and 15 seconds after the trade, equity block trades up to 20 minutes late because of exchange rules, and dark pool prints anywhere from hours to days later, depending on when they are reported. There is no free plan; the entry point is a two-week trial for a fee.
Key features
- Sweep detection
- Flags intermarket sweep orders, where one large order is split across several exchanges within microseconds, which often signals urgency.
- Option blocks
- Shows large, privately negotiated option trades alongside sweeps, with smart highlighting of unusual flow.
- Dark pool and equity blocks
- Large lit-market equity blocks (up to 20 minutes delayed) and dark pool prints (reported hours to days later), plus a Dark Pool Insights view.
- Historical flow
- Search past orders by ticker and date range, with data going back to June 2017.
- Alpha AI signals and Levels
- FlowAlgo's own signal feed and 'institutional zones' price levels, included on every plan.
- Voice alerts and chatroom
- Spoken alerts for notable orders, day recap snapshots, top open-interest changes and a members' chatroom.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Two-week trial | $37 | Full access for two weeks, then renews at $149/mo; the site marks the offer as ending Dec 31 |
| Monthly | $149/mo | All features |
| Quarterly | $387 every 3 months | All features; works out to $129/mo |
| Annual | $1,188/yr | All features; works out to $99/mo |
All plans include the same features; the homepage shows the monthly price as $149, reduced from $199. Plans can be cancelled at any time.
Checked September 25, 2026 on flowalgo.com. Prices change; confirm on the provider's site before you subscribe.
Strengths
- One all-inclusive plan: no feature tiers or add-ons to compare
- Combines sweeps, blocks, dark pool prints and equity blocks in one feed
- Historical flow back to 2017 for reviewing how past orders played out
- Annual billing brings the cost down to $99 a month
Limitations
- No free plan; the cheapest way in is the paid two-week trial
- Real-time option data can lag the trade by up to 15 seconds, and dark pool prints by hours or days
- The homepage describes it as a web dashboard used from a browser; it does not mention native mobile apps
- Covers US stocks and options only; no futures or crypto flow
Good fit for
- Active options traders who want a live sweep and block feed with alerts
- Traders who want dark pool prints next to option flow
- Traders who prefer one flat price over choosing between tiers
Look elsewhere if
- Traders who want to learn flow on a free plan first (Unusual Whales has a delayed free tier)
- Anyone expecting trade recommendations: flow shows orders, not their intent
Compare
Alternatives to FlowAlgo
FlowAlgo questions
How much does FlowAlgo cost?
$149 a month, $387 a quarter or $1,188 a year, which is $99 a month. Every plan includes the same features.
Does FlowAlgo have a free trial?
There is no free trial; a two-week trial costs $37 and then renews at $149 a month unless cancelled.
Is FlowAlgo data real time?
Option flow is near real time, arriving 0.5 to 15 seconds after the trade. Equity blocks can be up to 20 minutes late and dark pool prints hours to days late, because of how those trades are reported.
How far back does FlowAlgo's history go?
Historical order data goes back to June 2017 and can be searched by ticker and date range.
Written from FlowAlgo's own website and documentation. All Trading Tools lists and compares tools; it does not recommend trades or give financial advice. Sources: flowalgo.com, flowalgo.com/select-a-plan.