If the other person in the proposed partnership cannot demonstrate equivalent-value skills and equivalent previous success in critical-to-the-business areas where I'm weak (or uninterested) like sales, marketing, biz-dev, enterprise sales, acquiring VC - then my answer is almost certainly going to be "Sure, $8k/month is my usual rate - discounts of 20% for 3 month or longer block bookings. When would youy like me to start?"
If the other person refers to themselves as "An ideas guy!", my rates double, and require 50% up front.
Software development is serious time consuming and often difficult work. Do not ask me to do it for less than market rate without making it very clear that you are going to work just as hard with equivalent skill and experience to make the idea succeed.
I worked on our idea for 3 months and finished it. At the end of the 3 months, he told me that he needed to concentrate on things that made him money and he just wasn't interested in pursuing any new ideas. Since I was poor and still living with my parents, I wasn't able to do anything with my code except use it on interviews when looking for a new job. Another company came out with almost the same idea a few years later and made millions.
The main problem was that he had no skin in the game. I had poured my life into our idea and thought about it every day. He put nothing/very little into it and was easily able to move onto something new because he wasn't losing anything. Everyone needs to take the same amount of risk in a business partnership. This is usually either time or money.
A few years later he continued on with his door-to-door computer repair company and wanted to hire me for $10/hour as a technician. At that point, I was making a salary and had a great position as a junior software developer and pretty much laughed in his face.
Our personal relationship never really recovered. We were good friends before this and at this point, and I haven't talked to him for 10+ years.
This is logical from a developer standpoint, but has it ever worked. Has any one ever paid 50% upfront.