Coinbase iOS app and widget
Balance takes advantage of the Coinbase API in order to provide an improved widget experience over the default Coinbase app's widget. The main feature of Balance's widget is that it shows your balances in real/crypto currencies, as opposed to just the crypto prices.
Balance's backend runs over the Coinbase Node.js package, through a serverless function behind my website
The small widget:
The medium widget: (Large has the same content)
Home screen with balances:
Settings page to configure your Coinbase API: