Thanks for the info.
>> I strongly advise the OP against leaning only in simplicity as a key differentiator, since TBH all 20+ competitors in the market could claim the same thing.
Thanks again. Yes, I can see that you are right. Our main* focus is "efficiency" (not claiming that it's a specially god focus, but it is our main) With this I mean speed & and focus on functionality/work-flow and less on decoration / packaging.
As for all webapps, simplicity is a very important factor to, but I can agree with you that it's not a good differentiator.
Invoice.ly doesn't have a goal to become a service accountant would use. But it has more in terms of what a SMB owner would use than invoicing. Invoice.ly is US adaptation of app I made for my (EU based) country. Besides "mini" that you can see there is also a "norm" which will offer a more rich set of features.
I'm definitely serious, where can I find your email? My is janko DOT itm AT gmail.
To the OP if you're seriously committed, shoot me an email and I can give you some pointers that I've learned over the last 2 years.