Polymarket vs Manifold Markets
Polymarket
Crypto, on-chain · USDC, pUSD · Offshore
6.9 out of 10, editor score
- +Free withdrawals
- +$2 minimum deposit
- +7 market categories
Manifold Markets
Play-money · Mana · n/a (play money)
3.7 out of 10, editor score
- +No minimum deposit
- +4 market categories
- +Public API
Verdict
Both sit outside the regulated perimeter, and that is where the similarity ends. Polymarket is real money: USDC collateral you custody yourself, a published taker schedule that charges makers nothing, and one of the widest category lists we have reviewed. Manifold is play money whose currency “cannot be converted to cash”. So the risk profiles are not comparable — on Polymarket an unlicensed venue and self-custody mean the loss is your capital, on Manifold there is no capital to lose. The real question is access: Polymarket’s own documentation restricts users in the United States, United Kingdom, Germany and Brazil to closing positions rather than opening them, while Manifold is broadly open. For many readers this comparison resolves not on which is better but on which one will take them.
Row by row
The edge on each row is marked. Built automatically from the platform records, so it never drifts from the reviews — rows that describe rather than rank, like jurisdiction or market categories, say “no edge” instead of picking a side.
| Criterion | Polymarket | Manifold Markets | Edge |
|---|---|---|---|
| Overview | |||
| Editor Score | 6.9/10 | 3.7/10 | Polymarket |
| Type | Crypto / on-chain | Play money | No edge |
| Launched | 2020 | 2021 | No edge |
| Mobile apps | iOS, Android | Web only | No edge |
| Fees | |||
| Fee conditions & evidence | Taker fee = shares × category rate × price × (1 − price). For 100 crypto shares at $0.50 with rate 0.07, the fee is $1.75 on a $50 purchase: 3.5% of purchase cost, not 1.75%. Rounding and any rebates must be considered separately. Review evidence · Official fee source | Manifold trades in mana, its play-money currency, which “cannot be converted to cash”; every user starts with M1000 free and more mana can be bought (docs.manifold.markets/faq, read 2 Oct 2026). The FAQ mentions no per-trade fee. Creating a market costs mana, and “the entirety of the initial cost goes towards liquidity”; some market types cost more. Free daily loans are interest-free; margin loans for Plus, Pro and Premium members “accrue 0.03% interest per day”. Review evidence · Official fee source | Depends on the trade |
| Maker fee | 0% | See fee conditions above | No edge |
| Taker fee | See fee conditions above | See fee conditions above | No edge |
| Withdrawal fee | Free | — | No edge |
| Deposits and withdrawals | |||
| Minimum deposit | $2 | Free | Manifold Markets |
| Currencies | USDC, pUSD | Mana | No edge |
| Markets | |||
| Market categories | Politics, Sports, Crypto, Economy, Entertainment, Science, Other | Politics, Science, Entertainment, Other | No edge |
| Public API | Yes | Yes | Tie |
| Access and regulation | |||
| Jurisdiction | Offshore | n/a (play money) | No edge |
| Licensing | — | — | No edge |
| KYC required | — | — | No edge |
| KYC trigger | — | — | No edge |
| Supported countries | — | — | No edge |
Real money against play money
Polymarket settles in USDC. Deposits arrive across Polygon, Arbitrum, Base, Optimism and other EVM chains plus Solana, Bitcoin and Tron, with a stated minimum of $2 from the L2s, $7 from Ethereum and $9 from Bitcoin or Tron, and convert to pUSD as collateral. Polymarket charges nothing to deposit or withdraw, though intermediaries may. You hold the collateral yourself, which removes custodial counterparty risk and hands you smart-contract and key-management risk in exchange.
Manifold’s mana cannot be converted to cash, and every account starts with M1000 free. There is no deposit to make and no withdrawal to attempt. Its separate Prize Drawing pays USDC prizes and is void in eight US jurisdictions by its own rules.
Cost
Polymarket publishes its schedule in full: makers are never charged, and takers pay a per-category rate — 0.07 crypto, 0.05 sports, 0.04 finance and politics, zero on geopolitics — applied as shares × rate × p × (1 − p), so the cost peaks at a quarter of the headline rate near 50¢ and decays toward the tails. $1.75 for 100 crypto shares at 50¢, or 3.5% of their $50 purchase cost; nothing at all on geopolitical markets. It also documents a live Maker Rebates Program that redistributes fees daily to market makers, without publishing a rate.
Manifold’s fee rating is absent because its documentation never states a trading fee either way. It does state a M$1 API comment fee and market-creation costs in mana. Since mana has no cash value, the comparison does not carry much meaning in either direction.
Regulation, and why both rate low
Neither holds a licence for the venue you would trade on. Polymarket’s offshore book names no regulator we can point to, and we could not establish the operating company’s jurisdiction of incorporation; the CFTC register does list “QCX LLC d/b/a Polymarket US — Designated — 07/09/2025”, but that designation belongs to a separate US entity, not to this book. Manifold holds no licence and explains that it needs none because its currency cannot be cashed out.
Polymarket still rates meaningfully higher, and the reason is worth being explicit about: a verifiable designation held by an affiliated entity is more than nothing, and Manifold has no regulatory position at all. But Manifold has no customer cash balance to lose either. The two ratings are answering the same question — how strong and how checkable is the position — and arriving at low numbers by different routes.
Breadth
Polymarket’s own fee schedule enumerates 11 categories — crypto, sports, finance, politics, tech, mentions, economics, culture, weather, other and geopolitics — covering every category we track, which is the widest verified breadth of the three published platforms.
Manifold’s market variety is unrated, and that is a gap in our sourcing rather than a judgement about the platform. Its documentation describes topics and groups but publishes no enumerated category list we could read, so there was nothing to rate the breadth against. Anyone who has used Manifold knows it is wide; we could not source it, so we left it out rather than assert it.
Which one suits you
Choose Polymarket if…
→You want real positions in USDC with the widest published category list here and a free maker side, you are outside the jurisdictions Polymarket restricts, and you accept an unlicensed venue and self-custody as the price of that.
Choose Manifold Markets if…
→You want to trade the mechanics with nothing at stake and no deposit, or Polymarket’s own access rules exclude you — as they do for readers in the US, UK, Germany and Brazil, who may close positions there but not open them.
FAQ
- Is Polymarket safer than Manifold because there is real money involved?
They are not on the same axis. Manifold cannot lose you money because its currency cannot be converted to cash. Polymarket can, and neither the offshore book nor Manifold holds a licence for the venue you trade on, so on Polymarket there is no supervisor and no compensation scheme standing behind your collateral — you hold it yourself, which cuts custodial risk and adds smart-contract and key-loss risk. Neither is “safer” in the abstract; one has stakes and one does not.
- Which lists more markets?
Polymarket, on the evidence we have — 11 categories in its own fee schedule, covering everything we track. Manifold’s market variety is unrated because its documentation publishes no enumerated category list we could read, so read that absence as a gap in our sourcing rather than as a narrow platform. Neither rating reflects live market counts or how fast either lists a breaking event, which nobody has sampled.
- Can I use either from the United States?
Manifold, yes, for play-money trading — though its Prize Drawing is void in Delaware, Idaho, Massachusetts, Michigan, Nevada, New York, Washington and Washington, D.C. Polymarket’s own documentation lists the United States among restricted jurisdictions where users may close existing positions but cannot open new ones. The separately designated Polymarket US entity is a different product from the one reviewed here, and we have not verified what it offers.