Options scanners are not one category. Flow trackers watch what is trading; analytics sites go deep on a name; strategy builders draw a trade; market-wide screeners filter everything; rules engines run a written process and monitor the result. This guide describes each kind, names representative products including our own, and lists the questions that tell you which kind you actually need.
*How this page was written: from each product's public materials as read in September 2026, and from what Optionscanner does as deployed. Features and prices change; check each site for current details. This is a description of tools, not advice about which to buy or what to trade.*
Search for an options scanner and the results mix products that share the word and little else. Sorting them by what they are built to do makes the choice much easier than comparing feature lists.
Products such as Unusual Whales, and flow views inside OptionStrat and others, watch options order flow: unusual activity, sweeps, blocks and dark-pool prints, with alerts. They are discovery tools. They show what traded, not why, and reading intent from a print is the trader's job.
Products such as Market Chameleon go deep on a single name or event: implied-volatility history and rank, earnings-move history, historical statistics on structures, and many screeners. They answer research questions and export data. They generally stop at the numbers; the decision workflow is yours.
Products such as OptionStrat let you compose any structure and see its payoff, Greeks and behaviour over time. They are the clearest way to look at a trade you already have in mind. They do not choose the trade or watch it after entry.
Platforms such as Barchart filter the entire market by yield, volume, expiry and dozens of other fields, across asset classes. They are broad by design and are often the first step in building a watchlist.
Optionscanner is in this group. The screen is one step in a process: a rule set you adopt and can edit, a graded setup, the selected trade drawn on a chart, open positions checked against your exit rules with the rule that fired printed on the card, and a paper-first agent that runs the process with an approval queue and a kill switch. The methodology is published and the scores are calibrated against realized outcomes. The trade-off is narrower coverage than a market-wide screener and less flow and history than the data sites.
1. Does your process start from what is unusual today, or from written rules? Flow tracker versus rules engine. 2. Do you need long histories and exports for research? Analytics site. 3. Do you already know the structure and want to see it precisely? Strategy builder. 4. Do you want the whole market, across asset classes, in one filter? Market-wide screener. 5. Do you want software to check your open positions against your exit rules and tell you which fired? Rules engine with monitoring. 6. Do you want automation, and if so, does it stay in a paper account until you click? Only some rules engines offer this, and how live orders are gated matters more than the feature list.
Every product here, including ours, is a tool. None of them knows your account, your tax situation or your tolerance for a loss, and none of them is a source of investment advice. The right combination is often two products: one for discovery or research, one for process and monitoring.