Invoiless is a great app which allows to create invoices rapidly and get paid via Stripe easily. I very much like the flexibility of how the app is setup. It allows to choose up to 3 different business or brands and I can also select language and currency on a per customer basis. This gives me all the flexibility I needed having mainly international customers.

Some future improvements I would love to see are:

1. SMTP option to send branded emails from my business email address
2. Integration with Pabbly connect or Konnectzit
3. Customer Portal where customers can view and download their invoices
4. Basic small business accounting features.

Overall I am very happy with this tool and the founder is also responsive to feature suggestions.