PolySyncer Alternative: How It Compares
PolySyncer starts at $99 a month and runs to $499. It also has the most carefully specified custody design of any tool in this category, ours included. Both should shape your decision, and the second one gets less attention than it deserves.
Where PolySyncer beats us on custody
PolySyncer's mirror engine runs on a scoped EIP-712 permission that your own wallet issues. Their security page says that permission is bounded by “an explicit maxNotional cap, a maxSlippageBps ceiling, an expiry timestamp, and a per-owner nonce the user can invalidate at any time.” They describe the settlement contract as non-upgradeable, with no proxy, no admin key, and no migration switch. Setup never asks for a private key at all: you connect a wallet and sign two off-chain messages.
That is a more tightly bounded design than ours. BlockRotate splits trade authority from withdrawal authority the same way, and a compromised bot of ours cannot move funds out of your account. What we do not publish is a per-permission spending cap, an expiry, or a revocation mechanism for the credentials we issue. They do. If you are choosing on the precision of the custody model alone, their design is the one to beat and we would rather say so than have you discover it after you sign up.
What the tiers actually cost
Started is $99 a month, Pro is $299, and Elite is $499. There is a 7-day money-back window on paid plans and no proration after the seventh day.
Cost over a year, before any trade
From PolySyncer's published tier pricing. Their mobile app, alerts, and higher API rate limits sit on the Pro and Elite tiers, so the entry price buys less than the full product.
BlockRotate is free during beta. Paid tiers are on the way and the pricing page will say what they are before they start. You pay Polymarket's own fees and Polygon gas on any trade with either tool.
Side by side
| BlockRotate | PolySyncer | |
|---|---|---|
| Price | Free during beta. | $99, $299, or $499 per month. 7-day money-back on paid plans. |
| Cost per order | None. | Not stated. |
| How the tool gets trading authority | Your bot gets its own Polygon wallet and scoped L2 credentials that can trade but cannot withdraw. | A scoped EIP-712 permission issued by your own wallet. No private key changes hands. |
| Spending cap on that authority | Not documented. | A maxNotional cap, set explicitly. |
| Revoking it | Not documented. | Per-owner nonce, described as invalidatable at any time. |
| Settlement contract | Not documented. | Described as non-upgradeable: no proxy, no admin key, no migration switch. |
| Minimum funding | None stated. | They recommend at least $25 USDC and roughly 2 MATIC for gas. |
| Trader discovery | You supply the wallet address to follow. | Leaderboard and pre-built strategies. |
| Platform | Web dashboard. | Web, mobile app access on Pro, plus a REST and WebSocket API. |
| Published execution latency | Sub-1ms detection to execution, on co-located infrastructure. | Several figures published, none consistent. See below. |
“Not documented” means we do not publish it, not that it does not exist. Ask us before you rely on either answer.
Claims we could not verify
Polysyncer publishes several claims we could not check. Listing them is more useful than repeating them, and you should hold our own claims to the same standard.
Their site gives at least six different figures for how fast a mirror executes, from roughly 600ms on Elite to 2.5s median and 6s at p99 on Pro, depending on which page you read. There is no single number to quote, so we have not quoted one.
Their security page states the service was audited by Trail of Bits in Q1 2026 and that the full report is published verbatim. We could not find that report. It is not in their sitemap and no obvious URL resolves. That does not make the claim false, and it does mean you cannot read the findings they point you toward.
Their checkout, homepage, and documentation describe payment three different ways. We have not stated how they accept payment because we cannot tell.
The United States appears on their restricted-jurisdiction list, annotated as a placeholder pending jurisdiction-specific review. Treat that as unresolved rather than as a settled yes or no, and check it yourself before you pay.
Where BlockRotate is the better fit
Cost is the obvious one. Free during beta against $1,188 a year at the entry tier is a gap you could run a lot of trades through.
Setup is the second. There is no funding minimum to hit, no gas balance to manage before you start, and no subscription decision to make while you are still working out whether copy trading suits you. Paper trade a leader against live market data first and find out for free.
Common questions
Is PolySyncer more secure than BlockRotate?
Their custody permission is more precisely bounded than ours, and it is revocable. Both tools keep withdrawal authority away from the bot. If custody architecture is your deciding criterion, read their security page and ask us what ours does, then compare the two answers rather than the two marketing pages.
Do I need to give either tool my private key?
Not to PolySyncer, which uses a signed permission instead. Not to BlockRotate, which issues scoped L2 credentials to a wallet your bot controls. If a tool asks you to paste a private key anywhere, understand exactly who ends up holding it before you do.
Is BlockRotate free?
Yes, during beta, with no per-order fee. Paid tiers are coming and will be published before they start.
How does PolySyncer compare to PolyCopy?
They sit at opposite ends of the market. PolyCopy is cheaper per month and takes a cut of each order; PolySyncer is expensive per month and has the stronger custody design. We compared BlockRotate and PolyCopy in detail on the PolyCopy comparison page.
Competitor details were verified against each vendor's own website in September 2026 and can change without notice. Check the vendor's pricing and terms pages before making a decision, and treat our own claims with the same scepticism — check ours too. BlockRotate and PolySyncer are independent tools. Neither is affiliated with or endorsed by Polymarket.
Start without a subscription
Paper trade a leader against live Polymarket data before you commit any capital. Free during beta.