Extended review

Perp DEX on Starknet, crypto and RWA#P09EVM

The cheapest taker fee in the series at 0.025%, on a venue built by an ex-Revolut team that settles entirely on Starknet. Deposits are accepted from six EVM chains in USDC, ETH, USDT or wBTC, which removes the usual bridging detour.

Open Extendedapp.extended.exchange

app.extended.exchange

DegenBenchChecked 27 Sept 20266 sources · official docs + public data#P09

Perpetual futures are leveraged: a small move against you can liquidate your position. Only trade what you can afford to lose.

Trading fees
0.025% taker · 0% makerA flat schedule for perps and spot: 0.025% taker, 0% maker, with RWA markets discounted to 0.010% taker. Makers whose share of total maker volume reaches 0.5% receive a 0.002% rebate, rising to 0.010% above 5% market share; rebates are automatic and paid daily at 00:00 UTC.
New-user perk
10% discount on commissionsvia a referral link (not offered here yet)
Max leverage
up to 100×100 perp markets
Identity check
No KYC
Custody
Non-custodial: funds stay in on-chain Starknet contracts
Settles on
Starknet · USDC, wBTC, ETH, USDT
Where it runs
Web
30-day volume
$7,288.0MDefiLlama protocol page, 28/09/2026. Normalized 24h volume ($89.4M) is within 2% of reported volume ($90.5M), so the figure stands as published.

Who it’s for

Pick it if

Fee level is your deciding criterion and you want crypto and RWA markets on the same account.

Skip it if

You want to trade on a phone, or you need a referral program that pays in cash rather than points.

Strengths / Limits

Strengths

  • 0.025% taker and 0% maker, the lowest taker fee of the whole series, with RWA markets at 0.010%.
  • Funds stay in on-chain Starknet contracts, and the team says it has no custodial access; the contracts are published and audited.
  • Deposits accepted from Ethereum, Arbitrum, Base, Polygon, Avalanche and BNB Chain, in four assets.
  • $7.3B of perp volume over 30 days with normalized data matching reported data within 2%.

Limits

  • The referral program pays 2.5% of points, not a share of cash fees: monetisation depends on what the points turn into.
  • 100+ markets is an advertised floor, not a published count, and no mobile app is documented.
  • Access is restricted by jurisdiction and the docs repeat eligibility caveats on every page.

What it offers

  • Order bookYes
  • Cross marginYes
  • Spot tradingYes
  • Vaults / copy vaultsYes
  • Copy tradingNot documented
  • Stocks, gold or forexYes
  • Points programYes
  • APIYes
  • Mobile appNot documented
  • Telegram botNot documented

“Not documented” means we found no official page, not that the feature is missing.

How to start safely

  1. Open the official app

    Type app.extended.exchange yourself or use a bookmark: phishing copies of perp exchanges are common.

  2. Deposit a small amount first

    Send a test deposit of the collateral the exchange accepts, on the chain it documents, before moving more.

  3. Set leverage and a stop before the order

    Pick isolated margin for a new trade, keep leverage low, and place the stop-loss with the order, not after.

  4. Watch funding and liquidation price

    Funding is paid regularly while a position is open, and the liquidation price moves closer as leverage rises.

How to start trading perps on a DEX

Security record

No incident found in our sources. That is not a guarantee.

Official domains: extended.exchange

Sources

Checked on 27 Sept 2026. Facts change quickly: re-check prices and fees in the app.

Extended0.025% taker · 0% maker · app.extended.exchange

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