Download the Tangem app
from the App Store or Google Play Store
How to buy SMARDEX
- Non-custodial
- Private keys are yours
- +1M users
- 4.7 on App Store
Buy SMARDEX quickly on your phone without an exchange or signup. Tangem is a free, non-custodial wallet for iOS and Android. Buy SMARDEX with Apple Pay, Google Pay, Venmo, PayPal, or cards
How to buy SMARDEX right now?
The fastest way to buy SMARDEX is directly inside the Tangem app, without opening an account
Create your SMARDEX wallet
You own the keys; No one can access the private keys
Buy SMARDEX instantly
You can use Apple Pay, Google Pay, Credit cards or Bank transfers
Why buying SMARDEX in a non-custodial wallet is safer
When you buy SMARDEX on an exchange, the exchange holds your funds. If the exchange is hacked, freezes withdrawals, or goes bankrupt, your SMARDEX is at risk. Tangem ensures that doesn't happen to you. When you buy SMARDEX, our integrated provider sends it directly to your wallet's public address.
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Own your money
Your private keys are generated and stored inside the Secure Enclave (iOS) or StrongBox (Android), a dedicated security chip on your device that handles all cryptographic operations
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Secure your assets
The Tangem app has been independently audited by third-party researchers e.g Cure53
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Start in minutes
You can upgrade your asset security by backing your wallet up with the Tangem card or ring. They use an EAL6+ certified secure element for cold storage
What you can do with SMARDEX in Tangem
Send SMARDEX to any wallet address
Move SMARDEX 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 SMARDEX 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 SMARDEX
Completely zero fees to hold or send SMARDEX in Tangem
0.5-1%
On-ramp fee
Charged by the payment provider processing your purchase
Rates and minimums vary by provider and region, and are displayed clearly in-app before checkout
$0.10-0.25
Network fee
Paid to SMARDEX 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 SMARDEX with Tangem
Here we've answered some of the most common questions we received
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No. Tangem lets you buy SMARDEX 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.
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No. Tangem is fully self-custodial. Your SMARDEX is stored on the secure chip inside your Tangem card, and only you hold the private keys. Tangem never has access to your funds.
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Most purchases complete within a few minutes. Once the payment is approved by the provider, your SMARDEX is delivered straight to your Tangem Wallet.
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Your SMARDEX 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.
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Your Tangem Wallet already is cold storage. The private keys for your SMARDEX are generated and kept on the card's secure element and never leave it.
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KYC requirements depend on the payment provider and the amount you're purchasing. For small purchases of SMARDEX, many providers allow you to buy without verification.
Want maximum security? Upgrade to cold storage
The Tangem app gives you a secure, non-custodial wallet that most people will never need to go beyond
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The Tangem app gives you a secure, non-custodial wallet. If you are holding a significant amount of SMARDEX and want your keys offline and safe, Tangem wallets are built for that
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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
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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