How to Buy Ultra (UOS)
Every exchange we track that lists UOS, what the buy costs, and what it costs to take UOS with you afterwards.
10 of the exchanges we track list UOS, and 9 of those accept fiat, so you can buy it without holding crypto first. The cheapest place to place the order is Bitfinex at $0.00 on a $1,000 market buy. But add the fee to move UOS off the exchange and the order changes: MEXC comes out lowest at $0.50 all-in, against $1.24 on the cheapest trading fee. The withdrawal fee is flat, so the smaller your buy, the more it decides where you should buy. UOS moves over 2 networks (Ethereum (ERC20), UOS) — pick the same one on the exchange withdrawal screen and in your wallet. 1 of them has UOS withdrawals paused right now — you can buy there, but you cannot take the coin with you until it reopens.
Networks UOS runs on
Where to buy UOS
All-in cost is the trading fee on a $1,000 market buy plus the cheapest fee that exchange charges to withdraw UOS. It is the number the exchange’s own “how to buy” page never shows you, and it reorders the table more often than not. The coins column is how many assets each exchange lists in total, from our own sync — not the figure CoinMarketCap prints.
| Exchange | Buy fee on $1,000 | Move it out | All-in cost | Coins listed | Buy |
|---|---|---|---|---|---|
 MEXCReferralPay with Card | $0.500–0.05% taker | FreeEthereum (ERC20) | $0.50 | 9,475 | Visit ↗ |
 GateReferralPay with Card | $1.000.1% taker | $0.9820301.3 UOS · Ethereum (ERC20) | $1.98 | 2,059 | Visit ↗ |
 BitfinexPay with Bank, 3rd-party | $0.000% taker | $1.24380.37 UOS · Ethereum (ERC20) | $1.24 | 106 | Visit ↗ |
 KuCoinPay with Card | $1.000.1% taker | $0.5866180 UOS · UOS | $1.59 | 2,147 | Visit ↗ |
 CoinExPay with P2P, 3rd-party | $2.000.2% taker | $0.0651820 UOS · Ethereum (ERC20) | $2.07 | 1,018 | Visit ↗ |
 HTXPay with Bank, P2P | $2.000.2% taker | $0.9953305.4065 UOS · Ethereum (ERC20) | $3.00 | 1,159 | Visit ↗ |
 BitruePay with Card | $2.800.098–0.28% taker | $0.3618111 UOS · Ethereum (ERC20) | $3.16 | 1,784 | Visit ↗ |
 Gleec BTCCrypto deposit only | $2.500.25% taker | $13.254,066 UOS · Ethereum (ERC20) | $15.75 | 136 | Visit ↗ |
 HitBTCCrypto deposit only | $2.500.1875–0.25% taker | $24.817,613 UOS · Ethereum (ERC20) | $27.31 | 1,786 | Visit ↗ |
 BitMartPay with Card, P2P, 3rd-party | $1.000.1% taker | withdrawals paused | — | 3,695 | Visit ↗ |
Showing 1–10 of 10 exchanges listing UOS
Buying UOS step by step
- Pick a venue from the table. For a coin this size the choice is usually short — 10 exchanges list UOS at all, and the table already shows what you will pay to leave as well as to buy.
- Fund the account. 9 of those exchanges take fiat, 5 of them by card. Card is fastest and dearest; a bank transfer costs a fraction of it. Depositing a stablecoin you already hold is free on almost every exchange here.
- Place the order. A market order pays the taker fee in the table; a limit order that rests on the book pays the lower maker fee. On a thinly traded coin the spread costs more than either, so a limit order is worth the wait.
- Decide whether to move it. Leaving UOS on the exchange is free but custodial. Moving it to a wallet that supports it costs one withdrawal fee — send a small test amount first, and match the network on both sides.
How to buy UOS — FAQ
Where can I buy Ultra (UOS)?
On 10 exchanges we track: MEXC, Gate, Bitfinex, KuCoin, CoinEx and 5 more. The table above has each one with its trading fee, the payment methods it takes and what it charges to withdraw UOS.
What is the cheapest way to buy UOS?
MEXC, at $0.50 to buy $1,000 of UOS and withdraw it — $0.50 in trading fee plus $0.00 to move it out over Ethereum (ERC20). If you are leaving the coin on the exchange, only the first half applies and a different venue may win. Paying by card adds the card processor's charge on top of both, typically 1.8–4%.
Can I buy UOS with a credit card?
Indirectly, yes. 5 of the exchanges listing UOS accept a card, but the card almost always buys a major asset — USDT, USDC, BTC — which you then swap for UOS on the same exchange. That means two fees: the card charge, then the trading fee in the table.
Do I have to pay a fee to withdraw UOS?
Every exchange charges one, as a flat amount of UOS per network rather than a percentage. We do not have a priced figure for all of the venues listing UOS yet — the UOS withdrawal fee page has whatever each exchange publishes.
Is it safe to leave UOS on the exchange?
It is a custody choice, not a safety switch. While the coin sits there the exchange holds the keys: convenient, recoverable if you lose your password, and dependent on the exchange staying solvent and keeping withdrawals open. Moving it to a wallet you control removes that dependency and costs one withdrawal fee. For a trading balance, staying put is reasonable; for a long hold, most people move.
Which network should I use for UOS?
UOS is issued on 2 networks and they are not interchangeable — UOS sent over Ethereum (ERC20) will not arrive at an address on UOS. Ethereum (ERC20) is the one most exchanges use (9 of them). Withdrawal fees differ per network too, sometimes by an order of magnitude, so the cheapest network is worth checking as well as the cheapest exchange.
Exchange coverage for UOS comes from each exchange’s own deposit and withdrawal endpoints (last sync 2026-08-29 00:53 UTC); trading fees are the published base tier, no volume discount applied (verified 2026-08-28). Exchanges we have a referral arrangement with appear first and are tagged as such — it changes no number in any row. Nothing here is investment advice; see our methodology.