Interactive tool

How to Test a Startup Idea in SA

A field-tested way to validate startup ideas fast — without quitting your day job. Score your idea in five minutes, then follow the 1–24–100 method.

  1. Step 1 Score five gut-check dimensions
  2. Step 2 Preview your multiplied score
  3. Step 3 Download your PDF report

What you’re really trying to answer

Most startups fail because no one actually wanted what they built. This guide is not about writing a business plan or pitching to VCs. It is about answering one practical question:

“Does anyone really want this — enough to use it or pay for it, right now?”

  • A 5-minute gut check to filter out weak ideas.
  • The 1–24–100 method to validate ideas in the real world.
  • Practical next steps to keep moving — or kill an idea fast.

The information on this website is general in nature and does not constitute professional advice. Please contact TSRK for advice specific to your circumstances.

General information for South African professionals exploring side projects or new ventures. Not professional advice.

Credit

This interactive tool is adapted from the field guide published by The Open Letter. Read more SA business ideas and insights at theopenletter.io.

Your idea

5-minute gut check

For each question, mark your honest gut-feel answer (0–3). We multiply all five scores. A zero in any dimension zeros the whole result.

Product

How likely is it that this product could be 10× better than what people use today?

Acquisition

Can I find and reach users without spending money?

Market

Is this a big and growing market?

Defensibility

Once it gets traction, will it be hard to copy?

Buildability

Can I realistically get the people, money and skills needed to build it?

After the gut check: the 1–24–100 method

Ideas that survive the gut-feel test are ready for deeper testing. Prove demand before you build.

Phase 1 · 1 hour

Social & search listening

Google like a user, scan Reddit/X/Facebook groups, check trends and competitor reviews for public demand signals.

Phase 2 · 24 hours

Conversations or landing page

Talk to 5–10 people about the problem, or run a simple waitlist page and follow up every signup.

Phase 3 · ≤ 100 hours

Quick MVP

Build only the core value — no-code, concierge, or tightly time-boxed code — then gather feedback from real users.

Your details and download

Enter your contact details to generate a PDF scorecard plus a condensed validation guide.

Use Preview score only to see your multiplied result without emailing a PDF. Use Generate PDF report when you are ready to download.