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Find quick answers to common questions about your CUBE wallet, cards, and savings — or reach our support team directly.
Frequently asked questions
Quick answers about getting started, deposits, cards, savings, and keeping your account secure.
Getting started
How do I install or update the CUBE app?
CUBE for Android is available today as a direct APK download from our website, and App Store and Google Play listings are coming soon. When installing, allow your browser or file manager to install unknown apps if Android asks. Android updates also arrive as APK downloads announced inside the app, while iOS updates will come through the App Store once the app is available there.
How do I create an account?
Choose your country, enter your email address and a password, and confirm the verification code we send to your email. You then set a 6-digit PIN that protects your account and unlocks the app. Once that's done, your wallet is ready to use.
Do I need an invite code to sign up?
No — the invite code field at registration is optional. If a friend invited you, enter their code when you sign up, or bind an inviter later from your profile. Registration works exactly the same either way.
Wallet & deposits
How do I receive crypto into my wallet?
Pick the currency and network on the Receive screen, and the app shows your deposit address together with a QR code you can copy or share. Make sure the sender uses the same network as the address you generated — transfers on a mismatched network can fail. Also check the minimum deposit amount shown in the app before you transfer.
How do I send crypto to another wallet?
Enter the recipient's address — or scan their QR code — then choose the network and the amount. The app shows the network fee and the exact amount that will arrive before you confirm. Always double-check the address and network before sending.
Can I exchange between currencies inside the app?
Yes. The in-app Exchange lets you convert between supported assets such as BTC, ETH, BNB, DOGE, USDT, and CUBE, with the fee shown before you confirm. Every exchange appears in your transaction history.
Cards
How do I apply for a virtual or physical card?
Open the Card section, choose a virtual or physical card, and complete identity verification by submitting your name, ID number, and photos of your ID card, passport, or driver's license. A one-time card issue fee applies and is shown in the app before you confirm. Once approved, your card is ready to top up and use.
How do I top up or manage my card?
Top up your card directly from your wallet balance in the app. You can freeze or unfreeze your card at any time and change its PIN whenever you like — freezing takes effect immediately if you ever misplace your card.
How do I activate my physical card when it arrives?
Physical cards are mailed to the contact name, phone number, and address you provide during the application. When your card arrives, open the app and activate it by entering the security details printed on the card. Activation is required before you can use the card's other features.
Savings & security
What's the difference between flexible and fixed-term savings?
Flexible USDT plans can be redeemed at any time, while fixed-term plans stay locked until they mature. Both earn rewards paid out in USDT and CUBE. Choose flexible if you want your funds available on demand, or fixed-term if you're comfortable committing for the plan's full duration.
How do I turn on Face ID or Touch ID?
Open the app's settings and enable biometric unlock to open CUBE with your face, fingerprint, or device PIN instead of typing your PIN each time. You can also choose how quickly the app auto-locks after you leave it.
What if I forget my password or PIN?
You can reset either one with an email verification code. From the login screen, choose the reset option, confirm the code we send to your registered email, and set a new password or PIN. If you run into trouble, email us and we'll help you recover access.
Still need help?
Can't find what you're looking for? Email our support team and we'll get back to you.