[eappleby]

Thanks! In the past, I've used https://invoice-generator.com/, which is pretty similar, but without the templates. One important thing they do is keep a history of the past invoices, so you don't need to re-type in the information and upload the logo (stored on users local machine without needing to create login). You should consider adding something similar. Without it, I would not consider switching.

[jaredtking]

Thanks for the shout-out! We have a free API as well for generating invoice PDFs: https://invoice-generator.com/developers

[prawn]

This is what I use for a side project as well. I don't really need features beyond that and it's worked well enough for me.