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SubWallet Extension makes it easy to manage all your digital assets in one place. View balances, send and receive tokens, and organize your portfolio across multiple blockchain networks.

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Viewing Your Tokens

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Token List

Your home screen displays all tokens across enabled networks:
  • Native Tokens: Network-specific currencies (DOT, KSM, ETH, etc.)
  • Custom Tokens: ERC-20, PSP-22, and other token standards
  • Asset Balances: Real-time balance updates for each token
  • Fiat Values: See your token values in your preferred currency

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Balance Types

SubWallet shows different balance categories:

Total Balance

The complete amount of tokens in your account, including locked and reserved amounts.

Transferable Balance

The amount available to send or use in transactions, excluding existential deposits and locked amounts.

Locked Balance

Tokens locked for staking, governance, vesting, or other on-chain activities.

Reserved Balance

Amounts reserved by the network for specific purposes like storage deposits or account data.
Substrate chains require a minimum balance (existential deposit) to keep accounts active. This amount cannot be transferred or it would delete your account.

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Sending Tokens

Transfer tokens to other addresses quickly and securely.
1

Select token

Choose which token you want to send from your asset list.
2

Enter recipient

Paste the recipient’s address or scan their QR code. SubWallet validates addresses to prevent errors.
3

Enter amount

Type the amount to send or use the “Max” button to send your entire transferable balance.
4

Review and confirm

Check the transaction details including network fees, then confirm with your password or hardware wallet.

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Address Validation

SubWallet automatically validates recipient addresses:
  • Format Check: Ensures the address format matches the selected network
  • Network Compatibility: Warns if an address isn’t compatible with the selected token
  • Address Book: Save frequently used addresses for quick access
Always verify the recipient address before sending. Blockchain transactions are irreversible and funds sent to the wrong address cannot be recovered.

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Transaction Fees

Every token transfer requires a network fee:
  • Fee Display: See estimated fees before confirming transactions
  • Fee Token: Fees are paid in the network’s native token (e.g., DOT for Polkadot, ETH for Ethereum)
  • Fee Options: Some networks offer multiple fee tiers (slow, medium, fast)
Keep some native tokens in your account to pay for transaction fees. Without enough for fees, you won’t be able to send other tokens.

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Receiving Tokens

Get your address to receive tokens from others.

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Your Receive Address

1

Select account and network

Choose the account and network where you want to receive tokens.
2

Copy address or show QR code

Copy your address to share it, or display a QR code for easy scanning.
3

Share with sender

Provide your address to the person or service sending you tokens.

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Important Receiving Tips

Make sure the sender is using the same network. For example, don’t share your Ethereum address if someone wants to send you Polkadot tokens.
Some networks support multiple address formats. SubWallet displays the correct format for each network automatically.
For Substrate chains, the first transaction to your account must meet the existential deposit minimum to activate the account.

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Adding Custom Tokens

Import tokens that aren’t automatically detected by SubWallet.

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ERC-20 Tokens (Ethereum/EVM)

1

Get contract address

Find the token’s contract address from a block explorer or the project’s official website.
2

Add token

Enter the contract address in SubWallet. Token details (name, symbol, decimals) are fetched automatically.
3

Verify and save

Confirm the token information is correct and add it to your token list.

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PSP-22 and Substrate Tokens

For Substrate-based tokens:
  1. Select the network where the token exists
  2. Enter the asset ID or token details
  3. Configure token metadata if not auto-detected
  4. Add to your portfolio
Only add tokens from trusted sources. Malicious tokens can display misleading information or attempt to exploit vulnerabilities. Always verify contract addresses on official sources.

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Managing Your Token List

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Organizing Tokens

Keep your token list clean and organized:
  • Hide Small Balances: Filter out tokens with very small or zero balances
  • Search Tokens: Quickly find specific tokens by name or symbol
  • Sort Options: Order by balance value, token name, or network
  • Remove Tokens: Hide tokens you no longer want to see (doesn’t affect blockchain balances)

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Token Details

View detailed information about any token:
  • Origin Network: Which blockchain the token comes from
  • Contract Address: Smart contract address for custom tokens
  • Decimals: Precision of the token (usually 18 for ERC-20)
  • Price Data: Current market price and 24-hour change (when available)

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Multi-Account Token View

When viewing “All Accounts”:
  • See combined balances across all your accounts
  • Identify which accounts hold specific tokens
  • Total portfolio value across all accounts and networks

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Token Security

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Verifying Tokens

Before interacting with any token:
1

Check official sources

Verify the token contract address on the project’s official website or documentation.
2

Use block explorers

Look up the token on a reputable block explorer (Etherscan, Subscan, etc.) to see its transaction history and holder count.
3

Research the project

Understand what the token represents and the team behind it before acquiring it.

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Token Approvals

When using dApps, you may need to approve token spending:
  • Approval Amount: Controls how much a smart contract can spend
  • Unlimited Approvals: Some dApps request unlimited approval - consider limiting this
  • Revoke Approvals: You can revoke token approvals at any time through token approval managers
Regularly review and revoke unused token approvals to minimize security risks from compromised dApps.

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Portfolio Tracking

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Total Portfolio Value

SubWallet calculates your total portfolio value:
  • Aggregates all token balances across networks
  • Converts to your preferred fiat currency
  • Updates in real-time with market prices

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Price Charts and Data

For supported tokens, view:
  • Current market price
  • 24-hour price change percentage
  • Historical price charts (when available)
  • Market cap and trading volume

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Transaction History

View your complete token transaction history:
  • Incoming Transfers: Tokens received
  • Outgoing Transfers: Tokens sent
  • Token Swaps: Exchange transactions
  • Other Interactions: Staking, governance, smart contract calls
Each transaction shows:
  • Date and time
  • Amount and token type
  • Transaction status (pending, confirmed, failed)
  • Network fees paid
  • Link to block explorer for full details

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Best Practices

Always keep enough native tokens (ETH, DOT, etc.) in your account to pay for transaction fees.
On Substrate chains, respect the existential deposit. Removing it will delete your account and any remaining dust amounts.
Double-check recipient addresses and amounts before confirming transactions. Use small test transactions for new recipients.
Hide or remove tokens you don’t use to reduce clutter. This doesn’t affect your actual holdings, just the display.
Regularly review which dApps have approval to spend your tokens and revoke unnecessary approvals.
Before interacting with any token you receive unexpectedly, research it thoroughly. Scammers often airdrop malicious tokens.

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