Later today I'll be shutting down the servers and moving on. This is my 5th startup and the 4th failure. The reason is very simple: I understimated the cost of user acquisition. This is the second time this happened. The dozens of users actually love the software and are using it on a daily basis. I'm ruthless when it comes to coding and money.
So, if you are building a startup: do not ignore how much money you will have to spend to get a user. If you are not able to find that number, something could be wrong with your model.
Maybe someone smarter than me could write something elaborate about user acquisition costs.
RIP https://www.condoly.com