FAQ

Is Prow custodial?

No. Your money stays in your own account on Hyperliquid, Aster or Lighter. Prow never holds it.

Your wallet owns the venue account. Prow trades with a trading key that lives on your device. The key can place, change and cancel orders. It cannot withdraw funds or send them to anyone. On Aster it can also move money between your own spot and futures.

Bets work the same way. They are paid from your own account on Hyperliquid and your own wallets on Polymarket and predict.fun. Prow places your bets and can't withdraw your money.

Can Prow move my funds?

No. Withdrawals and transfers always need a signature from your main wallet. The trading key is approved with withdrawals turned off. On Aster you can see this in the signing details: Withdraw is false.

The key expires within 180 days. You can revoke it at any time in Settings > Venues: open the account's Details and tap Disconnect at the bottom.

Bets are the same. On Polymarket and predict.fun the wallet that owns the account signs each bet, your Prow wallet with no pop-ups and a wallet of your own with a confirmation each time. Prow can't withdraw your money.

What is reduce-only?

A reduce-only order can only make your position smaller. It never opens a new position and never flips you from long to short. In the ticket it is the check box Only reduce my Long (or Short), shown when the order would reduce a position you hold.

• You are long 1 ETH. A reduce-only sell of 1 ETH closes the position.
• You are long 1 ETH. A reduce-only sell of 2 ETH still closes only 1 ETH. It never opens a 1 ETH short.
• You have no position. A reduce-only order is rejected.

Use it to take profit or cut a loss with a limit order, without the risk of opening a trade by mistake. If an order would grow your position, you see Reduce-only rejected. Untick it or flip the side.

Ticking it turns off Take profit and stop loss in the ticket. A closing order does not need its own take profit or stop loss.

What do "This order" and "Whole position" mean?

You see these two options when you tick Take profit and stop loss on a market order on Hyperliquid.

• This order: the take profit and stop loss cover only the size of this order. If you add to the position later, the new part has no TP/SL.
• Whole position: the take profit and stop loss cover the entire position, including anything you add later. When one triggers, it closes the full position.

Why is my balance higher than Available to trade?

They measure different things.

• Your balance is everything you own on the venue: your perps account plus your spot wallet, including unrealized PnL. Portfolio shows it in By venue.
• Available to trade is the margin free for a new perps order right now. Trade shows it on the venue's account card next to the ticket.

Available to trade is lower because it leaves out:

• Margin in use by open positions.
• Margin held by open limit orders.
• Your spot wallet. Spot funds don't back perps on Aster, or on Hyperliquid in standard mode. Move them to perps first.
• The collateral discount on Aster. Aster counts assets like BNB at a reduced value for margin. With Multi-Assets mode off, it does not count them at all.

Withdrawable is a third number. It is what can leave the account now. It can be lower than Available to trade.

Every label is explained in Balances explained.

I deposited BNB on Aster but Available is 0

Your balance shows the BNB, but Available to trade is about $0. Aster only uses BNB as margin when Multi-Assets mode is on. It is off by default, and in single-asset mode only USDT counts.

Fix it in one of two ways:

1. On asterdex.com, open the futures settings and turn on Multi-Assets mode. Use the same wallet.
2. Or swap the BNB to USDT on Aster, in your Futures account.

Then come back to Prow. Available updates on the next refresh. More in Troubleshooting.

Why does Aster show a different number than Prow?

Usually for one of these reasons.

• Non-stable collateral. If you deposited BNB (or ETH, BTC and so on), in Multi-Assets mode Aster can use it as margin. Prow shows its value at Aster's index price (no haircut) in your balance. Aster may show it at a discount, or show only your USDT.
• Spot and futures together. Prow adds your Aster spot wallet to your total. Aster shows spot and futures on separate pages.
• Timing. Prices move every second. Both apps refresh on their own schedule, so the numbers can differ for a moment.

The Perps collateral tab of Portfolio's Assets card lists each asset, for example 0.5 BNB at $299.20 next to your USDT. Available to trade always comes from Aster itself.

Why two signatures when I connect?

Each signature does a different job. Neither one moves funds, and neither has a network fee.

The prompts for connecting, trading and funds are listed in What you sign.

1. Trading key. Your wallet approves a new key for this device. Perps and spot trading only, no withdrawals.
2. Prow fee. Your wallet approves the Prow fee. This step is optional while the fee is 0%. You can tap Later.

On Aster you may see one more prompt:

• Switch to BNB Chain. Aster signs account actions on BNB Chain. The switch is free.
• One more signature. If your wallet already has an Aster account, Aster needs a separate approval for the key.

Can I bet on prediction markets with Prow?

Yes. Predictions lists markets from Hyperliquid, Polymarket and predict.fun side by side: sports, crypto, politics and more. Pick Yes, No or a team, type an amount and confirm. A share of the outcome that happens pays $1, and you can sell while trading is open. If your outcome doesn't happen, your shares pay $0.

Your money stays in your own accounts on those venues. You connect them once in Predictions, and Prow places your bets from there. Each venue has country rules of its own, so a venue may not take bets from where you are. See Your first bet and Prediction markets.

Does Prow charge a fee on bets?

Prow charges 0% on bets until Dec 31, 2026. From Jan 1, 2027 the Prow fee is 1% of the amount on Hyperliquid and Polymarket, and nothing on predict.fun. The venues have fees of their own, and the bet ticket shows every fee before you confirm.

From Jan 1, 2027, Hyperliquid asks you to approve Prow's 1% once with your wallet before your next bet. Selling never waits for it. The fee table is in Prediction markets.

How do I get my winnings?

It depends on the venue.

• Hyperliquid pays winnings into your account by itself when the market settles. There is nothing to claim.
• Polymarket and predict.fun need a claim. Open Predictions > My bets and tap Claim on the bet, or Claim all. Portfolio lists the same winnings under Needs attention. The Claim window shows what you get and where it goes, and Claimed confirms the money is in your cash on that venue, ready to bet with.
• On predict.fun a claim is a BNB Chain transaction, so keep a little BNB in the same wallet.

A bet that lost pays $0. On Hyperliquid and Polymarket it shows in History as Lost. More in Settlement and claims.

Why can't I bet on Polymarket from my country?

Polymarket doesn't take bets from many countries. That is Polymarket's own rule, not Prow's, so Prow can't place the bet for you. Prow asks Polymarket where you are. If it says no, the bet button turns grey and reads Not available in your country, and a note above it has See it on polymarket.com. What you already hold in your Polymarket account stays yours.

predict.fun and Hyperliquid have country rules of their own, and Prow shows the same words for them. A venue that takes bets from where you are keeps working. More in Troubleshooting.

Do I need an app store?

No. Prow runs in your browser. You can install it to your Home Screen like an app. Push alerts work on iPhone with iOS 16.4 or later, and on desktop.

Which regions are restricted?

Prow is not available to people who live in or are located in:

• the United States
• the United Kingdom
• the European Union
• the United Arab Emirates
• Ontario (Canada)
• Cuba
• Iran
• North Korea
• Syria
• Russia
• Belarus
• the Crimea, Sevastopol, Donetsk, Luhansk, Zaporizhzhia and Kherson regions of Ukraine

From these places you see a "Prow isn't available in your region" screen. Using a VPN or proxy to get around it breaks the Terms of Service. See Troubleshooting for details.

Polymarket, predict.fun and Hyperliquid also have country rules of their own for bets. See Why can't I bet on Polymarket from my country?