You can enable the Stripe integration by clicking into the Apps tab in the Novo app on iOS or Android. There you will be able to use your Stripe login details to connect Novo directly to your Stripe account to see your balances.
You will also see a new dashboard connection prompt when logging in for the first time. This can be dismissed if you are not interested. Please note that re-installing the app will cause this prompt to re-appear when login in for the first time.