Where is your company located? You can use a free invoicing app to accept Paypal and/or Stripe, and integrate it with QBO.

Hello, may I know what that app is called?

@Mazinger Z 

Explore this free app

https://go.zoho.com/wQI

then you may need these following apps

1. To mirror the invoice data from Zoho to QBO

https://www.make.com/en/register?pc=quickbooks

2. To reconcile payments in QBO

https://partnerstack.synder.com/quickbooks

3. A backup restore app before connecting the apps

https://partnerwithus.rewind.com/quickbooks