It's a tool built out of personal necessity that they decided to share with the world for free.

But don't despair, contributions are welcome.

https://github.com/LaniJ/invoice-dragon

>Seriously, without ability to add VAT?

99% of people in the US have never heard of VAT, so I'm not sure what you find surprising about a US-based project not including VAT...

This is open source, feel free to make a PR or at least file an issue for these concerns.

I'm happy I might not have to rely no making accounts on a bunch of invoice making apps to make bespoke invoices at some point

Seriously, a VAT registered a not having an accountant tool that costs £10/month? This tool is clearly for freelancers.

For context, to charge VAT in the UK, you need to earn more than £85k/year

Not all sales require VAT. Nor does everybody have the need or desire to pay VAT. This tool is fine - as long as you're invoicing in English that is.