Acheter Tangem
How to buy ONEchain

How to buy ONEchain

  • Non-custodial
  • Private keys are yours
  • +1M users
  • 4.9 on App Store

Buy ONEchain quickly on your phone without an exchange or signup. Tangem is a free, non-custodial wallet for iOS and Android. Buy ONEchain with Apple Pay, Google Pay, Venmo, PayPal, or cards

Download the app

How to buy ONEchain right now

The fastest way to buy ONEchain is directly inside the Tangem – no account, no waiting.

1

Download the Tangem app

From the App Store or Google Play. Free, no signup.

2

Create your ONEchain wallet

You own the private keys. No one else can access them.

3
Buy ONEchain

Buy ONEchain instantly

Pay with Apple Pay, Google Pay, card or bank transfer.

Buy ONEchain in Tangem app

Why buying ONEchain in a self-custody wallet is safer

When you buy ONEchain on an exchange, the exchange holds your funds. If the exchange is hacked, freezes withdrawals, or goes bankrupt, your ONEchain is at risk. Tangem ensures that doesn't happen to you.

What you can do with ONEchain in Tangem

Send ONEchain to any wallet address

Move ONEchain across Ethereum, Tron, BNB Chain and more — no KYC, no middlemen

Cold storage in your pocket. Tap to secure. Tap to spend.

Private keys never leave the card's secure chip — no exposure, no online risk

Swap ONEchain for other assets directly in the app

Compare rates from DEXs and CEXs automatically — no external account needed

Earn with it by connecting to dApps and DeFi protocols

Access yield on Aave and other protocols without handing over your keys

Fees and limits when buying ONEchain

Completely zero fees to hold or send ONEchain in Tangem

0.5-1%

On-ramp fee

Charged by the payment provider. Shown clearly before you confirm.

Rates and minimums vary by provider and region, and are displayed clearly in-app before checkout

$0.10-0.25

Network fee

Paid to ONEchain miners or validators to process your transaction

This varies with network congestion and is shown before you confirm

Limits depend on your region and the payment provider. Tangem works with multiple on-ramp partners so you can compare options before buying.

Buying ONEchain with Tangem

Here we've answered some of the most common questions we received

  • No. Tangem lets you buy ONEchain directly in the app using Apple Pay, Google Pay, and more payment options. You never need to create an exchange account or go through a separate verification process to get started.

  • No. Tangem is fully self-custodial. Your ONEchain is stored on the secure chip inside your Tangem card, and only you hold the private keys. Tangem never has access to your funds.

  • Most purchases complete within a few minutes. Once the payment is approved by the provider, your ONEchain is delivered straight to your Tangem Wallet.

  • Your ONEchain is stored on your Tangem card, not on your phone. Simply install the Tangem app on your new device and tap your card to regain full access to your wallet.

  • Your Tangem Wallet already is cold storage. The private keys for your ONEchain are generated and kept on the card's secure element and never leave it.

  • KYC requirements depend on the payment provider and the amount you're purchasing. For small purchases of ONEchain, many providers allow you to buy without verification.

D'autres questions ?

Le service d'assistance Tangem répond en moins d'une minute. Disponible 24 h/24, 7 j/7.

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Holding a lot of ONEchain? !!Upgrade!! to cold storage

The app already gives you a secure, non-custodial wallet most people never need to go beyond. If you hold a significant amount, pair a Tangem card and your keys move to an EAL6+ certified element managed from the same app.

Download the app Explore Tangem cards

  • The Tangem app gives you a secure, non-custodial wallet. If you are holding a significant amount of ONEchain and want your keys offline and safe, Tangem wallets are built for that

  • Pair a card with the app, and your wallet migrates to a secure EAL6+ certified element. You manage everything through the Tangem app and your keys live on the hardware

  • Tangem is a Swiss-based company and has been building self-custody wallets since 2017. Our products have been independently audited, certified, and reviewed by security researchers and major crypto media

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