Pricing

Clarity comes standard.

Public market analysis is free. Go deeper with PolySmarter Pro.

PolySmarter Basic

by Yield3

The essentials, on every public page.

Free alwaysExplore markets
  • The settlement rules in full
  • The visible order book and spread
  • Execution cost for a size you choose
  • Recent aggregate activity
  • The other outcomes of the same event

No account or sign-in needed.

Browser extension included

PolySmarter Pro

by Yield3

A closer look at market participation.

US$390 per yearSign in to subscribe
  • Everything in Free
  • Participant addresses
  • Trading concentration
  • The individual trade tape
  • The public information timeline

Prices are in US dollars and exclude tax. Coverage varies by market.

One subscription, two places to use it. Signing in here with Google unlocks the Pro modules on this website’s market pages; the same subscription also activates Pro in the PolySmarter browser extension on the Polymarket page you are reading. Signed-out readers see those modules locked — that is what the sign-in is for.

What does a Pro subscription actually buy?

Four modules, all of them about who is trading and what has been published: the addresses that traded a market (for markets whose trade tape has been reconstructed), how much of the traded notional sits with a few of those addresses, the individual prints rather than the aggregate of them, and public posts we collect placed against the price — each one carrying the time we first saw it rather than a claim about when it appeared. A fifth module, counterparty scoring, is marked Pro in our code but returns “not covered” on every deployment we run today, so it is not part of what a subscription buys.

Does Pro cover every market?

No. All four modules are built from data we hold for part of the market universe rather than all of it, and a module with nothing to show says which kind of nothing it has instead of filling in — what those states mean.

How do I subscribe or cancel?

A subscription starts right here: sign in with Google, choose monthly or annual billing above, and Stripe takes the payment on its own hosted page — this site never sees your card. It can equally start from inside the extension, which signs in through the same account; either way it is one subscription that works in both places.

Cancelling happens from your account, which opens Stripe’s billing portal. Cancelling stops the next renewal; Pro stays active until the end of the period you have already paid for, and the unused part of a period is not pro-rated. If you are a consumer in the UK or EEA you may also have a statutory right to cancel within fourteen days of purchase, subject to the usual limits where digital content has already been supplied with your consent. The subscription section of the terms sets all of this out in full, and nothing there limits rights you have under consumer law that cannot be limited.

Any tax due in your country is added at checkout, and the amount is shown again on the subscription site before anything is charged; what Stripe charges is what the configured Stripe price says — the figures on this page are read from the same table that is reconciled against it nightly. Payment is handled entirely by Stripe and we never receive your card details. Anything else — a refund request, or a charge you do not recognise — goes through support.

What stays free, and do I need an account to read?

Everything this site publishes as a page: the settlement rules with the deadline and the source that decides the payout, the order book as it stands when you open the page, what a size you choose would cost to fill — why the headline probability is not your fill, recent aggressive buying and selling, and the other outcomes of the same event with why their prices rarely add up to one hundred per cent. None of that asks for an account — reading is free, and signing in exists only to unlock the Pro modules for subscribers.