Cross-Chain Wallet

Eight Chains.
One Wallet.
Zero Switching.

Crypto does not exist on one blockchain. Your assets are scattered across Bitcoin, Ethereum, Solana, BNB Chain, and more. QIE Wallet unifies them into a single non-custodial interface so you stop managing wallets and start managing your portfolio.

Download QIE Wallet

The Multi-Chain Problem

Managing Eight Blockchains Across Eight Wallets Is Not a Strategy

Every blockchain has its own wallet standard. Bitcoin needs a different app from Solana, which needs a different app from Ethereum. By the time you add BNB Chain and Tron, you are tracking seed phrases across five different apps, paying fees in five different gas tokens, and switching constantly to get a complete picture of your portfolio. This is the fragmentation problem a cross-chain wallet solves.

Multiple recovery phrases to secure

Each standalone wallet means another seed phrase to write down, store safely, and never lose. One compromised phrase means one lost wallet.

Different gas tokens on every chain

Moving assets on Ethereum requires ETH. On BNB Chain it's BNB. On Polygon it's MATIC. A fragmented wallet setup means constantly topping up the wrong gas token.

No unified portfolio view

Your actual net worth in crypto spans every chain. Without a multichain wallet, you are guessing what you own and where it is.

At a glance

Here is how managing crypto across separate wallets compares to using QIE Wallet as your single cross-chain interface.

Fragmented Wallets

5+ separate apps

vs

QIE Cross-Chain

One app

Recovery Phrases

One per wallet

vs

Recovery Phrases

One for everything

Cross-Chain Swap

Manual bridge needed

vs

Cross-Chain Swap

Built-in via Changelly

Portfolio View

Manual across apps

vs

Portfolio View

Unified dashboard

dApp Access

Per-chain, per-app

vs

dApp Access

400+ from one wallet

Custody Model

Varies by app

vs

Custody Model

100% non-custodial

Supported Blockchains

What You Can Do on Each Chain Inside QIE Wallet

QIE is not just a token list with logos. Each supported blockchain unlocks specific capabilities: send, receive, swap, stake, connect to dApps, and interact with contracts. Here is what each chain gives you access to inside QIE Wallet.

BitcoinNative

Bitcoin

BTC

  • ·Manage BTC
  • ·Send and receive BTC directly
  • ·Buy crypto through integrated partners
EthereumEVM

Ethereum

ETH / ERC-20

  • ·Manage ETH and ERC-20 assets
  • ·Cross-chain swap ETH
  • ·Use your QIE domain for a simplified wallet experience
BNB ChainEVM

BNB Chain

BNB / BEP-20

  • ·Manage BNB Chain assets
  • ·Lower fees than Ethereum mainnet
  • ·Access EVM-compatible blockchain functionality
SolanaNative

Solana

SOL / SPL

  • ·Manage Solana-based assets
  • ·Fast, low-cost transactions
  • ·Send and receive SOL within the wallet
TronNative

Tron

TRX / TRC-20

  • ·Manage Tron-based assets
  • ·Very low transfer fees
  • ·Send and receive TRX within the wallet
AvalancheEVM

Avalanche

AVAX / ARC-20

  • ·Fast finality, low fees
  • ·Manage Avalanche assets
  • ·Access Avalanche's EVM-compatible ecosystem
PolygonEVM

Polygon

POL / ERC-20

  • ·Manage Polygon assets
  • ·Access low-cost EVM-compatible transactions
ArbitrumEVM

Arbitrum

ETH / ARB

  • ·Manage assets on Ethereum Layer 2
  • ·Full EVM compatibility
  • ·Access the Arbitrum ecosystem from the same wallet

TON, Cardano, Sui, and Aptos support coming soon. Total: 1,000+ cryptocurrencies and tokens across all active chains.

EVM Compatible Wallet

One Ethereum Address Works Across Five Chains

The EVM (Ethereum Virtual Machine) is a shared execution standard. Every chain built on EVM, Ethereum, BNB Chain, Polygon, Avalanche, and Arbitrum, uses the same address format, the same private key, and the same transaction signing logic. In QIE Wallet, one key covers all five.

Your Single EVM Address

Same address, every EVM chain:

0x71C7656EC7ab88b098defB751B7401B5f6d8976F
EthereumEthereumActive
BNB ChainBNB ChainActive
PolygonPolygonActive
AvalancheAvalancheActive
ArbitrumArbitrumActive
🔑

One private key for five chains

Your Ethereum private key in QIE Wallet controls your Ethereum, BNB Chain, Polygon, Avalanche, and Arbitrum wallets simultaneously. No extra setup, no additional seed phrases.

💸

Move assets to cheaper chains when it matters

When Ethereum becomes expensive, you can move your assets to Polygon, Arbitrum, or BNB Chain and continue using the same wallet address while paying lower transaction fees.

🪪

Your QIE domain resolves across EVM chains

Your yourname.qie blockchain domain is linked to your Ethereum address, which means it works across all EVM chains without any additional configuration.

Cross-Chain Swap vs Bridge

Why QIE Uses Swaps, Not Bridges

Bridges and cross-chain swaps both move assets between blockchains but they work completely differently. Bridges lock your asset and mint a wrapped version, introducing smart contract risk and wrapped token exposure. QIE Wallet uses Changelly's swap infrastructure, which exchanges assets natively without wrapping.

Attribute
Typical Bridge
QIE via Changelly
How it works
Lock and mint wrapped token
Native asset exchange
Wrapped token risk
You hold a wrapped version
You receive the real asset
Smart contract exposure
Bridge contract holds your funds
Changelly handles routing
Historical exploit risk
High — bridges are top hack targets
Swap aggregator model
Fee transparency
Often hidden in spread
Shown before confirmation
Speed
Multiple block confirmations
Fast execution
Custody during transfer
Bridge contract holds asset
Non-custodial swap flow

How It Works

A Cross-Chain Swap in QIE Wallet: Four Steps

Swapping assets between blockchains inside QIE Wallet takes under a minute. Here is exactly what happens when you swap, say, ETH on Ethereum for QIE on QIE Blockchain.

🔀
Step 1

Choose your pair

Select the asset you want to send and the asset you want to receive. QIE shows available pairs across all supported chains.

🧾
Step 2

Review rate and fee

The exchange rate and fee are shown before you commit. No hidden spreads. You see exactly what arrives on the other side.

🔐
Step 3

Confirm and sign

You sign the outgoing transaction with your private key inside the wallet. The cross-chain routing is handled by Changelly.

Step 4

Assets arrive

The destination asset arrives in your QIE Wallet on the target chain. Your private key remains unchanged throughout.

Portfolio Overview

$24,380.00

Total across all chains

Bitcoin
Bitcoin0.18 BTC
Ethereum
Ethereum2.4 ETH
Solana
Solana42 SOL
BNB Chain
BNB Chain6.1 BNB
Arbitrum
Arbitrum1.1 ETH
Polygon
Polygon820 POL

Unified Portfolio View

See Your Entire Crypto Portfolio Across Every Chain, at Once

One of the most practical benefits of a true multichain wallet is visibility. QIE Wallet aggregates your balances across all supported chains so you always know your real portfolio value without opening eight separate apps.

Total net worth in one number

Your QIE Wallet dashboard shows your combined balance across Bitcoin, Ethereum, Solana, and all supported chains in a single unified view.

Per-chain breakdown when you need detail

Drill into any chain to see individual token balances, transaction history, and connected dApps without leaving the app.

Send from any chain in the same flow

No chain-switching friction. Select any asset, choose a recipient address or QIE domain, and send, regardless of which chain the asset sits on.

One recovery phrase covers the whole portfolio

Unlike managing separate wallets, a single QIE recovery phrase restores your entire multichain portfolio: Bitcoin, Ethereum, Solana, and all EVM chains together.

See Your Portfolio in QIE

Common Questions

Cross-Chain Wallet FAQ

Everything you need to know about multichain wallets, cross-chain swaps, and EVM compatibility in QIE Wallet.

A cross-chain wallet lets you store, send, and manage assets across multiple blockchains from a single interface, rather than needing a separate app for Bitcoin, another for Ethereum, another for Solana, and so on. QIE Wallet supports 8+ major chains, giving you a unified view of your entire crypto portfolio without chain-switching friction.

QIE Wallet is built specifically as a multichain daily driver: non-custodial, EVM compatible, supporting Bitcoin and Solana natively, with built-in cross-chain swaps via Changelly and a blockchain identity system. For users who hold assets across more than two chains, it eliminates the need for multiple apps and multiple seed phrases.

A bridge typically locks your original asset in a smart contract on one chain and mints a wrapped version on the destination chain. This introduces wrapped token risk and smart contract exploit exposure — bridges have been among the most frequently exploited infrastructure in crypto. A cross-chain swap via an aggregator like Changelly (used in QIE Wallet) exchanges assets natively, so you receive the actual asset on the destination chain rather than a wrapped proxy.

Yes. QIE Wallet is fully EVM compatible, meaning your single Ethereum private key controls your wallets on Ethereum, BNB Chain, Polygon, Avalanche, and Arbitrum simultaneously. One address. One key. Five chains. Non-EVM chains like Bitcoin and Solana use separate keys managed within the same app.

QIE Wallet supports over 1,000 cryptocurrencies and tokens across all supported chains — including major ERC-20 tokens on Ethereum, BEP-20 tokens on BNB Chain, SPL tokens on Solana, TRC-20 tokens on Tron, and native assets on Avalanche, Polygon, and Arbitrum.

No. QIE Wallet uses a single recovery phrase that covers your entire multichain portfolio. All five EVM chains share one key derived from that phrase. Bitcoin and Solana wallets are also derived from the same master seed. You back up one phrase and your entire portfolio is recoverable.

Free to Download

Every Chain. One Wallet. Free Forever.

Stop managing eight wallets for eight chains. QIE Wallet unifies your entire crypto portfolio in a single non-custodial app, with built-in cross-chain swaps and a blockchain identity system.