The real answer is not one price. It depends on scope, trust, and what you actually need to launch.
Founders usually overspend when version-one starts absorbing version-two ideas. The smallest useful product is cheaper than the broadest possible one.
A narrow MVP stays controllable. Complexity jumps when you add more product surface and more edge cases.
Investor polish, customer features, admin controls, and enterprise-grade workflows at the same time turn an MVP into a much larger product.
Think in layers: the core user problem, minimum credibility, launch essentials, and the delay list. That keeps cost grounded in reality.
It is the smallest version worth shipping. Read the full guide or see the SaaS MVP service page for the deeper breakdown.