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Coinone review

Updated September 28, 2026 · SumCue Editorial Team · Facts checked September 26, 2026

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Our verdict

Coinone suits Korean traders who want a plain custodial exchange with staking alongside spot trading. Trading costs are the draw: maker and taker fees both sit at 0.25% and 0.25%, and 254 coins are listed, with won bank transfers the only way in.

Key facts

Best for
Flat trading fees on a Korean custodial exchange with staking built in.
Taker fee
0.25%↗
Coins listed
254↗
Fiat deposit methods
Bank↗
Maker fee
0.25%↗
Withdrawal fee
1,000 KRW per KRW withdrawal; crypto network fee varies by coin (e.g. 0.0008 BTC)↗
Exchange type
Cex↗
Legal entity
Coinone, Inc. ((주)코인원)↗
Headquarters
South Korea↗
Founded
2016↗
Support channels
Phone, Help-centre, Chat↗
Features
Custodial, Staking
Official website
coinone.co.kr

Facts checked September 26, 2026, 4 sources

Apps and profiles

Elsewhere
X

Pros and cons

Pros

  • Support by phone, chat and a help centre, the channels listed in phone, help centre and chat.
  • Staking and custodial storage are both listed under custodial and staking, so holding and earning can sit in the same account.
  • A central exchange, cex, with funding by bank transfer (bank) and a home market in South Korea.
  • Running since 2016 as Coinone, Inc. ((주)코인원), so the operation is established rather than new.

Cons

  • Fiat deposits run through bank transfer alone (bank), so you cannot fund the account by card.
  • Exit costs stack up: a charge on won withdrawals on top of a network fee that changes with the coin, then 0.25% each way on trading.
  • On taker fee it ranks 66 of 121 in the comparison, so cheaper exchanges are on the table.
Coinone

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Scored 9.0 / 10 by SumCue.

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Who it suits

  • Traders in KR who bank in won and fund by bank transfer (bank).
  • Anyone who wants phone, chat and help centre support from the same platform, per phone, help centre and chat.
  • Active spot traders who value staking and custodial storage on a single account (custodial and staking).

Who should look elsewhere

  • bunq, whose taker fee runs 0.25% to 1.99%, so a trader who mostly places orders may pay less there.
  • eToro, where the taker fee is 1% and Vivid Plus, listed with a taker fee of 2.25%.

Fees and currency costs

Spot trading costs 0.25% to take an order and 0.25% to place one, so both sides of the book sit at the same level. Won withdrawals carry a flat charge, and the crypto network fee changes with the coin, so moving funds out costs more the more you trade.

How Coinone compares

Where Coinone is available

Available
South Korea

Countries from the brand (Source, checked September 26, 2026)

Frequently asked questions

How much does it cost to trade on Coinone?+

Coinone charges 0.25% to take an order off the book and 0.25% to place one, so both sides cost the same. The typical taker fee across this category is 0.25%, which puts Coinone in the middle rather than at the cheapest end.

How do I deposit money?+

Funding runs through bank transfer, listed under bank, so you need a bank account rather than a card. The operator is Coinone, Inc. ((주)코인원), based in South Korea, which shapes who can open and fund an account.

Who holds my crypto while it sits on the exchange?+

Coinone is custodial, listed alongside staking under custodial and staking, so the exchange holds the keys rather than you. That suits active trading, where coins move in and out often, but a longer holding period depends on the exchange, and transfers out go through its withdrawal process rather than a self-custody wallet.

How many coins can I trade?+

The exchange lists 254 coins, a longer list than the 74.5 typical across exchanges in this group, though it still sits 61 of 176 in the comparison. As a central exchange, cex, the venue sets the list itself.

How do I reach help if something goes wrong?+

Support runs on phone, chat and a help centre, the channels listed in phone, help centre and chat, and phone cover is unusual among the exchanges in this group. The desk belongs to Coinone, Inc. ((주)코인원), which operates from KR.

What does it cost to withdraw?+

There is a flat charge on won withdrawals and a separate crypto network fee that changes with the coin you send, so the exit cost is not a single rate. Trading at 0.25% to place an order eats into that if you are moving size.

Is Coinone a sensible place to hold savings?+

Retail loss figures across this category sit at 70.15% typically and reach 74.5% at the upper end, so an exchange balance is a poor substitute for savings. Coinone has run since 2016 as a central exchange, which makes it a working venue rather than a store of value.

Sources

  • coingecko.com/en/exchanges/coinone checked September 26, 2026

    Backs: Coins listed, Founded

    “id=coinone; coins=254; pairs=254”

  • coinone.co.kr/fees checked September 26, 2026

    Backs: Fiat deposit methods, Headquarters, Legal entity

    “Stage 2: virtual asset deposits, KRW deposits and withdrawals, trading available; account registration (KRW deposit min 5,000, fee 0 KRW)”

  • coinone.co.kr/support/fee-guide checked September 26, 2026

    Backs: Maker fee, Taker fee, Withdrawal fee

    “If you do not receive a voucher, the normal trading fee rate of 0.25% applies; base fee rate (Maker and Taker both 0.25%) on the KRW spot trading account”

  • support.coinone.co.kr/ko/support/home checked September 26, 2026

    Backs: Exchange type, Features, Support channels

    “How to get a virtual asset deposit address? (deposits sent to exchange-issued addresses)”

Compiled from 4 source pages, checked September 26, 2026. We did not open an account.

Not confirmed yet: Regulators.

Coinone

Coinone

Flat trading fees on a Korean custodial exchange with staking built in.

9.0/10See alternatives