We do not store names or passwords on our databases. We only store encrypted access tokens and follow best practices with securing your tokens in our database. Only the last two months of credit/banking card transactions are kept in Coinflash’s database. You can learn more about security by watching this video.

Coinbase Linkage Explanation:

No Coinbase Payment Method Found:

If you recently set up your Coinbase account then you need to add payment methods in order to buy cryptocurrency. If you did connect a bank account to Coinbase, then it will take a few days for Coinbase to clear the bank and allow you to buy cryptocurrency. You can wait a few days and everything should clear. Or you can add a debit card to Coinbase as a payment method. You will have to verify two small payments Coinbase made though, make sure to do that. Here’s some more information from Coinbase about this process. Now you can buy cryptocurrency immediatly through Coinbase. Also double check that your primary payment method in Coinflash is set to your debit card under the ‘Settings’ button.

Coinflash Fees:

If you have both your Coinbase and your banking card connected, you will be charged a subscription fee of $1 on the 25th of every month.  The charge will be $1 in Ethereum or Bitcoin. You can choose which Coinbase account to debit out of through your ‘Settings’ button. If you do not choose, Coinflash will choose the first account it finds with at least $1 in funds in it.  We may at any time disconnect your link to your banking card if you can not pay your monthly fee.  We do this because we pay a monthly fee to our API for every banking card connected.

Coinflash Supports Banking, Debit and Credit Cards:

Coinflash can sum up change from transactions on your checking account or debit card. It will work with multiple accounts associated with one bank. It will not work with multiple banks.

Onboard Process:

We monitor your credit/debit card transactions through the Plaid API. We use Coinbase to make cryptocurrency transactions.

Cryptocurrencies Supported:

We currently only support Bitcoin and Ethereum.

Coinbase Fees:

Coinbase fees for transactions under $200:

  • $10 or less = $0.99 fee
  • $10.01 to $25 = $1.49 fee
  • $25.01 to $50 = 1.99 fee
  • $50.01 to $201 = 2.99 fee

‘Always Invest Coinbase Minimum Daily/Weekly/Monthly’ Setting

Coinbase will not purchase Bitcoin or Ethereum for under $3. This means if your spare change does not reach $3 for your Ethereum or Bitcoin percentage by the end of the day, week, or month, the purchase will not go through during the automatic investments. If you set this to yes, then we will always buy at least $3.25 worth (or whatever you set) of Bitcoin and Ethereum.

How It Works:

Coinflash counts up your change. At the end of every week or month, depending on your settings, it invests that amount into Ethereum and Bitcoin via Coinbase. Coinflash uses your primary payment method in Coinbase to buy cryptocurrency unless you specify otherwise. Coinflash only uses your credit card to sum up the change from your transactions.


Every time you refer someone using your referral link in your account settings page, you accrue 3 additional months of free Coinflash usage up to 12 months free. The person you sent the referral to also gets 3 months of free Coinflash usage.  We are also paying you in Ethereum for making referrals every month.

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