Variational vs Aster

Variational

Omni, Variational's trading app, charges no maker or taker fee on any market or trade size. Every trade fills at a price quoted by OLP, Variational's own market maker, so the cost of a trade is the spread in that quote, which the order form shows for your size. Deposits and withdrawals cost a flat 0.1 USDC each, and a liquidation closes the position 0.5% past the quote.

Aster

Those are the Crypto General rates at VIP 1, where a new account starts. Maker orders have been free on every order-book market since February 2026. The taker rate falls with VIP tier, and a tier needs both 14-day volume and an average ASTER balance, so volume alone does not lower your fee. Group B pairs pay more, stock and commodity perpetuals pay a flat 0.0125%, and the 1001x and Shield modes have their own fee models.

Variational

You connect an EVM wallet (Rabby, MetaMask, or anything on WalletConnect), enter an access code while Omni is in private beta, accept the Terms, and sign in with a gasless signature. No identity check is asked for to trade, deposit, or withdraw. KYC applies only to some payouts: referral rewards of $4,000 or more from the on-chain trader campaign, and trading competition prizes. The app checks your location by IP and shows a restricted-region notice to visitors from restricted countries.

Aster

You sign in with a wallet (Rabby, MetaMask, Binance Wallet, or anything on WalletConnect) or with an email address, and neither flow includes an identity check. The Terms, last updated February 25, 2026, say Aster may run limited identity verification to comply with regulations and may refuse or limit service to anyone who does not comply, but they do not say what triggers a check. You also warrant that your stated location is accurate and agree not to use any means to get around the location restrictions.

Variational

The Restricted Persons policy, last updated April 20, 2026, bars the US and its territories (Puerto Rico, Guam, the US Virgin Islands, the Northern Mariana Islands, and the US Minor Outlying Islands), Canada, Taiwan, Cuba, Iran, North Korea, Sudan, Syria, Micronesia, the Marshall Islands, Palau, and the Crimea, Donetsk, Luhansk, and Sevastopol regions of Ukraine. It also bars US and Canadian persons wherever they live, and the Terms, last updated September 11, 2026, extend the ban to citizens of a restricted country as well as residents. The app applies the list by IP address, and the Terms forbid using a VPN to disguise your location.

Aster

The Terms, last updated February 25, 2026, name eleven prohibited jurisdictions: the US, Canada, the UK, China, North Korea, Russia, Ukraine, Cuba, Iran, Venezuela, and Syria, plus any territory under comprehensive sanctions or a terrorist-supporting designation and anyone on a US, EU, or UK sanctions list. The test is where you live, are located, or are incorporated. Aster's separate prediction market rejects orders from a longer list of 34 countries that adds Australia, Germany, France, Italy, Japan, Singapore, and others.

Variational

Every crypto perpetual allows up to 50x. Perpetuals on stocks, ETFs, commodities, indexes, and pre-IPO companies cap at 20x, and swaps at 10x, with cocoa at 5x. The markets page shows each market's cap. Maintenance margin is half the initial margin at the leverage you pick, so lowering leverage on an open position can move its liquidation price closer. Positions are cross-margined unless you switch a market to isolated, and swaps are isolated only until they trade around the clock.

Aster

On the order book each market has its own cap, shown in the trading panel, and you can choose any lower level. The docs do not publish the full table, but stock perpetuals go to 50x, pre-IPO markets from 5x to 20x, and new community-listed markets start at 3x. Cross margin is the default and isolated is available, but Multi-Asset Mode is cross only. The separate 1001x mode offers up to 1001x on BTC, 250x on ETH, 75x on other coins, and 200x on forex, with every position isolated and no adding margin at 500x or above. Shield Mode runs from 20x to 1001x.

Variational

Omni's public API listed 568 markets on October 12, 2026: 434 crypto perpetuals, 120 perpetuals on stocks, ETFs, commodities, indexes, and the pre-IPO names Anthropic and OpenAI, and 14 swaps. Swaps track gold, silver, oil, gasoline, copper, cocoa, US and Asian equity indexes, the VIX, and the dollar index, with financing tied to traditional rates, and they trade market hours and close on weekends. Perps trade around the clock. There is no order book: market orders fill at the quote, limit orders fill in full once the quote crosses your price, and trigger orders fire on the mark price. Take-profit and stop-loss orders fire on the mark or the quoted price, your choice. Limit orders do not fill partially yet, and open orders expire after 120 days.

Aster

The public market list carried 592 live perpetuals on October 8, 2026: about 460 crypto pairs and about 135 real-world-asset markets, among them about 100 US, Hong Kong, and Korean stocks, 14 ETFs and indexes, and 11 commodity markets such as gold, silver, and oil, plus pre-IPO markets for OpenAI, Anthropic, Polymarket, Moonshot AI, and Oura. Most are quoted in USDT, and a handful settle in USD1. Shield Mode adds EUR and GBP forex, and there is a spot order book. Order types: market, limit, stop-limit, stop-market, trailing stop, TWAP, scaled, chase, and grid strategies, with post-only, reduce-only, hidden, and immediate-or-cancel options.

Variational

Collateral is USDC on Arbitrum One, deposited from the wallet you signed up with. The docs name no other route: funds on another chain have to be bridged to Arbitrum first, or withdrawn there from an exchange. Deposits are gasless, so you need no ETH, and each one costs a flat 0.1 USDC. Your USDC sits in an on-chain settlement pool between you and OLP, kept separate from every other trader's pool.

Aster

Connect a wallet on BNB Chain, Ethereum, Arbitrum, or Solana and deposit into the trading account through Aster's own bridge contracts, which are published along with a Sui address. USDT works from every chain and settles most markets. Single-Asset Mode takes USDT and USD1 as margin, with USD1 from BNB Chain or Ethereum. Multi-Asset Mode also counts the assets below at a fixed share of their value, from 99.99% for USDC down to 10% for LISTA and TWT. Arbitrum adds ETH, USDC, and USDC.e. Solana adds ETH, USDC, SOL, and JLP. Ethereum adds BTC, ETH, USDC, and rsETH. BNB Chain adds BTC, ETH, BNB, USDF, ASTER, CAKE, LISTA, and TWT, the staking tokens slisBNB, asBNB, WBETH, and STONE, the stablecoins lisUSD and BonusUSD, and the tokenized stocks TSLAB, CRCLB, SNDKB, and NVDAB. A BNB Chain wallet needs at least 0.001 BNB. Email sign-in accepts only USDT on Arbitrum. Deposits carry no Aster fee and usually land in one to five minutes. The docs do not publish minimums.

Variational

Withdrawals send USDC on Arbitrum back to the wallet connected to your account, the only destination allowed. They are gasless and cost a flat 0.1 USDC. With positions open, you can withdraw only the balance above your margin requirement.

Aster

Choose the network, token, and amount. The destination chain's gas is deducted from the withdrawal, and Aster says the minimum fee can be as low as 1 USDT, and the withdrawal screen shows the exact amount. Withdrawals from Aster Chain are batched, need two of three validators to sign, and take about 30 seconds, longer to Ethereum. Any negative balance must be settled first with Rebalance. Profits older than 24 hours can be withdrawn in full, while same-day profits are capped by a daily limit the docs do not state.

Variational

Variational has no token yet. It says $VAR launches in Q4 2026 with 32% of supply airdropped to points holders in proportion to their points, all of it unlocked at launch. Points are earned by trading on Omni and go out weekly until the launch. No date, token price, or points-to-token rate has been published. An account needs at least 1 point and must sign the $VAR terms to receive tokens, and the Terms let Variational change or withhold points at its discretion. Variational says it will use all revenue sent to its treasury to buy back and burn $VAR.

Aster

Aster has run six airdrop stages since ASTER launched on September 17, 2025, allocating 1.5B ASTER, 18.8% of supply, to points holders and traders. The first was the largest at 704M ASTER, and from Stage 4 on, claiming early paid half and burned the rest. Aster said Stage 6 was its last stage based on trading activity, and its Stardust points have been paused since August 31, 2026. The docs still release the rest of the 53.5% airdrop allocation over 80 months, subject to governance.

Variational

During the private beta, an existing trader's referral code is the access code a new account needs. A referral link carries the code in the address, and the app picks it up for the access-code step after you connect a wallet. The referrer earns 5% of the spread their referrals pay, in USDC, and 1 point for every 10 points their referrals earn. Traders unlock a first referral code at $1M in volume and one more slot for each $1M after that, and the app rejects invalid or expired codes. A campaign running since August 12, 2026 also gives points to 10,000 listed on-chain trader addresses that sign up with a code and reach volume milestones.

Aster

Signing up through a referral link passes part of the referrer's commission back to you as a discount on perpetual trading fees. Only new sign-ups qualify, the relationship lasts 365 days by default, liquidation fees, self-trades, and zero-fee volume do not count, and rebates are paid the next day in the asset the fee was paid in.

Variational

Omni runs in the browser at omni.variational.io and is built for mobile browsers too. Variational publishes no native app and says none is needed: on a phone you can add Omni to the home screen as a web app, then link it to a signed-in desktop session with a QR code instead of connecting a wallet on the phone. A read-only API serves market data, and the trading API is not available yet.

Aster

The web app at asterdex.com is the main interface, with Pro, Shield, 1001x, and Spot as separate views. Aster Mobile is on Google Play under the Aster DEX developer account. The iOS build is distributed through TestFlight, and the docs still call the mobile app a beta. There is also a trading API with up to 30 keys per account.