What PolymarketScan does well
PolymarketScan (polymarketscan.org) surfaces large Polymarket trades and ranks traders on a public leaderboard, with filtering by market category and trade size, and notifications through Telegram. It is legible, it is free to start, and for someone who wants to know that size moved it does the job without asking you to learn anything first.
If that is the whole requirement, there is no reason to change tools. This page is for the case where it is not.
The two differences that actually matter
What earns an alert
A size-based alert cannot distinguish a wallet that has moved price before from an address opened this morning pushing a large notional through a thin market. Both clear the same dollar threshold; only one is information. Ranking on measured impact rather than notional is what keeps the feed short enough that you still open it in week three.
What arrives with the alert
A trade without its context is a fact you then have to go research. Order-book depth on both sides at the moment of the fill, funding, open interest, liquidations and long/short positioning arrive with the alert rather than in four other tabs — which is usually where the time goes.
Side by side
| PolymarketScan | EdgeMarket | |
|---|---|---|
| Alert threshold | Trade size, with filters | Measured price impact |
| Leaderboards | Yes | Ranked on impact rather than realised profit |
| Order-book depth | No | Both sides, at the moment of the fill |
| Funding, open interest, positioning | No | Across venues, on the same screen |
| Liquidations | No | Yes |
| Directional calls | No | Five-minute BTC, ETH, SOL, XRP |
| Published record of those calls | n/a | Yes — hits and misses together |
| Telegram alerts | Yes | Yes, plus webhooks and an API |
| Free tier | Yes | Yes |
Note Capabilities are described from what each tool publishes about itself. No latency figure or accuracy rate is attributed to anyone here, including us — a number we have not measured has no place in a comparison.
Which one to pick
- You want to know when size moves, and nothing else. PolymarketScan is enough, and it is free.
- You want to judge whether that size mattered. You need the book it hit and the wallet’s history, which means a tool that carries both.
- You also trade the five-minute crypto markets. Only one of the two publishes directional calls with a public record you can audit before paying.
The broader field — Polywhaler, Polymarket Analytics, Unusual Whales, PolyTrack — is covered in the full comparison.
Frequently asked
- Is PolymarketScan free?
- It has a free tier, as most tools on this venue do, including ours. Free tiers usually cap alert frequency or delay the feed rather than removing it — worth checking which of the two before you rely on one.
- What is the best PolymarketScan alternative?
- It depends on what is missing for you. If it is breadth of alerting, Polywhaler covers similar ground. If it is context — the book, funding and positioning around each trade — that is the gap this tool was built for. The full comparison lays out who does what.
- Can I use both at once?
- Yes, and on a free week that is the sensible test. Run both, and count how many alerts from each you actually acted on. The number is usually lower than expected, and it is the only comparison that matters.
- Do leaderboards tell you who to follow?
- Not on their own. A leaderboard ranked on realised profit flatters whoever has been luckiest in the sample window. It is a useful list of addresses to investigate, and a poor list of addresses to copy — see the failure modes.
Keep reading
- Best Polymarket analytics tools
The whole field, side by side.
- Polymarket whale tracker
How wallets are ranked, and why size is not the criterion.