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The path for your kind of company

How to validate a Self-serve SaaS / B2C startup, stage by stage

9 stages, from the first conversation to a business that repeats. 5 are key milestones: if you do not beat them, nothing else counts. Each stage says how to know it is done and what to do this week.

  1. 01

    Who it is for

    Goal: Knowing exactly who your product is for: a specific group of people with this problem who already try to solve it somehow, because that shows they care.

    Where to start: Put up a simple page that explains in one sentence what you offer them, with a form to join a waiting list. Share it where that group hangs out: if people you do not know sign up, you are on the right track.

  2. 02

    First demo

    Key milestone🎖️ Counts in the FounderSeal

    Goal: Having a version that someone outside the team can use without you there explaining it.

    Where to start: Ask three people from your waiting list to try it and watch, without helping, where they get stuck.

  3. 03

    Your first hundred users

    Goal: Getting your first hundred users through a route you can repeat (a channel, a community, a type of content), not just through people you know.

    Where to start: Pick one place where your audience is (a forum, a social network, a group) and post there consistently for two weeks. Measure how many sign up from it.

  4. 04

    First active user

    Key milestone🎖️ Counts in the FounderSeal

    Goal: Getting someone you do not know to reach the part that solves their problem and come back without you asking.

    Where to start: Decide which action shows a user got something useful (for example, finishing their first task) and measure how many do it on their first visit.

  5. 05

    People come back

    🎖️ Counts in the FounderSeal

    Goal: Getting part of each month’s users to keep using it the following month, instead of all of them disappearing.

    Where to start: Group users by the week they signed up and check what share is still using it four weeks later.

  6. 06

    First payment

    Key milestone🎖️ Counts in the FounderSeal

    Goal: Getting someone to pay for something they used to get for free.

    Where to start: Put a specific price on the most used feature and offer it as a paid option to your most active users.

  7. 07

    First renewal

    Key milestone🎖️ Counts in the FounderSeal

    Goal: Getting the people who pay one month to keep paying the next.

    Where to start: Write to everyone who cancels and ask why. Five answers will tell you what to fix first.

  8. 08

    What a user costs and brings in

    Goal: Knowing, from your own numbers, what it costs you to win a paying user and how much money they bring in while they stay.

    Where to start: Add up what you spent last month on winning users and divide it by the number who started paying. Compare it with what an average user pays before leaving.

  9. 09

    Scalable channel

    Key milestone🎖️ Counts in the FounderSeal

    Goal: Having a channel that brings in more users when you put more money or time into it.

    Where to start: Double what you put into your best channel for a month and see whether the users it brings double too.

What gets measured

  • Sign-ups
  • Users who reach something useful
  • Users who come back after 7 and 30 days
  • How often they use it
  • Users who start paying
  • Cost of winning a user and what they bring in

What kills it

  • Piling up sign-ups while nobody comes back
  • Depending on a single paid channel
  • Mistaking downloads for users

Usual mistakes

  • Launching to everyone instead of a specific group
  • Adding features before anyone comes back
  • Measuring vanity numbers: downloads, likes, followers

Other kinds of company

B2B SaaSMarketplaceRegulated / healthHardwareAI-enabled servicesDeep-tech / R&DGeneral path

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Inside Madrid Ventures the path becomes your day: your AI CEO turns the stage you are at into missions for each person, and every proof you get raises your FounderSeal.

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