VOL. XCIV, NO. 247
★ BEST INVESTING TOOLS COMPARISON ★
NO ADVICE
Wednesday, June 3, 2026
Tool Comparison · Wednesday, June 3, 2026
ChartMill vs FlowAlgo
ChartMill vs FlowAlgo: which investing tool fits your workflow? Compare pricing, features, platforms, and verdict in seconds.
ChartMill
chartmill.com
Best for screeners, and stock ideas
- Pricing
- Free
- Platforms
- Web
FlowAlgo
flowalgo.com
Best for options & derivatives, and dark pool & off-exchange
- Pricing
- Paid
- Platforms
- Web
Outbound links may include affiliate or sponsor codes.
Comparison snapshot
Who should choose which?
Choose
ChartMill if…
- You want to start free before paying
- You actively trade and need real-time tooling
- You’re a long-term or value-focused investor
- You need free advanced stock screener with technical + fundamental filters (dividend, valuation, growth, profitability, health), custom expressions, saved screens, and customizable result views (tables/charts).
Choose
FlowAlgo if…
- You need real-time data, not delayed quotes
- You need realtime monitoring of options order flow, with unusual activity detection and tracking of intermarket sweep orders and option block trades.
- You need equity block and dark pool order data, paired with a dedicated “dark pool insights” module.
- You need 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.
Consider alternatives if…
- You want broader category coverage in one tool.
- Neither pricing tier fits your budget.
Side-by-side feature breakdown
| Attribute | ChartMill | FlowAlgo |
|---|---|---|
Asset types | StocksETFs | StocksETFsOptions |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | North AmericaEurope | North America |
Data freshness | 15-min DelayedEnd of Day | StreamingReal-time |
API access | Not specified | Not specified |
Export formats | CSV | Not specified |
Seen enough? Open either tool and try it now.
Pricing breakdown
Tool
ChartMill
$34.97/mo
Starting price
Plans & pricing
Tool
FlowAlgo
$37/mo
Starting price
Plans & pricing
Coverage overlap
Categories covered by ChartMill only.
Categories covered by FlowAlgo only.
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 ChartMill and FlowAlgo?
ChartMill focuses on Screeners, Stock Ideas, and Data Visualizations while FlowAlgo specializes in Options & Derivatives, Dark Pool & Off-Exchange, and Alerts. They overlap in 1 categories, so choose based on your preferred workflow and pricing.
Is ChartMill or FlowAlgo free to use?
ChartMill offers a free tier that lets you get started without paying, while FlowAlgo requires a subscription. If budget is a concern, start with ChartMill and upgrade later if you need more advanced features.
Should I choose ChartMill or FlowAlgo?
Choose ChartMill if you need Free advanced stock screener with technical + fundamental filters (dividend, valuation, growth, profitability, health), custom expressions, saved screens, and customizable result views (tables/charts)., and Trading Ideas library of pre-configured screens/strategies that can be run and adapted.. Go with FlowAlgo if Realtime monitoring of options order flow, with unusual activity detection and tracking of Intermarket Sweep Orders and option block trades., and Equity block and dark pool order data, paired with a dedicated “Dark Pool Insights” module. better fits how you invest.
What asset classes do ChartMill and FlowAlgo cover?
Both cover Stocks, and ETFs. FlowAlgo adds coverage for Options.
Does ChartMill or FlowAlgo have real-time data?
FlowAlgo offers real-time data feeds, which is essential for active traders. ChartMill uses delayed or end-of-day data, which works fine for longer-term investors who don't need up-to-the-second quotes.
Can I export data from ChartMill and FlowAlgo?
ChartMill supports data exports to CSV. FlowAlgo has more limited export options.
Is ChartMill or FlowAlgo better for day trading?
ChartMill is built with active traders in mind, offering features like real-time data and technical analysis. FlowAlgo is better suited for buy-and-hold investors focused on fundamentals.
Which has a better stock screener—ChartMill or FlowAlgo?
ChartMill includes a stock screener for finding investment ideas. FlowAlgo focuses on other analytical tools.
Other tools you might like
These profiles share overlapping coverage with both sides of this matchup.
Keep Exploring
Global rankings of the highest-rated tools across all categories.
Ranked list of companies with durable competitive advantages.
Proven models entering their growth phase with solid economics.
Track votes, sentiment, and engagement across the community.
Learn moat types, red flags, and real-company examples.
Browse other head-to-head tool comparisons and alternatives.
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.