Yes, you can use your debit card for the initial funding of your account during the application process. The maximum amount from a debit card is $250.00 and the funds will take approximately 2 to 3 business days to arrive. The debit card must be linked to a US-based bank and cannot be a pre-paid debit card.
If you wish to transfer more than $250.00 to open your account, you will need to use ACH transfers. More information on that can be found here.
The ability to transfer funds to your Aspiration Spend & Save account using your debit card beyond the initial funding transfer will be coming in the future. More details will be provided when that becomes available.