This system tells you what’s working in your startup — every week

Most founders don't run enough experiments.

Here's how to build a simple system that forces you to run growth experiments every week --- and runs them for you.

What you're building

A simple system that runs like this:

• Every Monday → new experiments appear
• You run 1--3
• You enter results
• The system tells you what worked

Tools

• Jotform → stores experiments
• Zapier → runs automation
• ChatGPT (via Zapier) → creates new ideas and variations
• Google Sheets → tracks results and shows winners

Step 1 --- Create the experiment form

Go to Jotform and create a new form.

Add these fields:

• Experiment Name
• Channel
• What are you changing?
• Primary metric
• Baseline rate
• Target rate
• Hypothesis
• AI Variations
• Start date
• End date

Add one required field:

• If I change [X], then [metric] will improve because [reason]

This forces every idea to be clear before it enters your system.

Step 2 --- Connect Jotform to Google Sheets

In Jotform: Settings → Integrations → Google Sheets → Connect

What happens: When a form is submitted, a new row is added to Google Sheets.

This sheet becomes your experiment tracker.

Step 3 --- Automatically generate experiments every week

Go to Zapier. Create Zap

• Trigger: Schedule → Every Monday → 8:00 AM

Action 1 --- Generate experiments (ChatGPT)

• App: OpenAI
• Action: Send Prompt

Paste this (or similar):

Generate 5 growth experiments for a bootstrapped SaaS founder.

Business:
[describe product]

Audience:
[describe audience]

Rules:
- Must be testable in  7  days
- No engineering required
- No paid ads above $100

Return:
Experiment Name
Channel\
What to  change
Metric
Hypothesis

Action 2 --- Send to Jotform

• Jotform → Create Submission (via Zapier integration)
• Map fields from ChatGPT → Jotform.

Result: Every Monday → 5 experiments are automatically added to your system

You no longer ask: "What should I test?"

Step 4 --- Automatically add variations

Add another step in the same Zap:

• OpenAI → Send Prompt (In the prompt, use the experiment name from the previous step)

Paste this (or similar):

For this experiment:

{Experiment Name}

Give:
- 5 headlines
- 5 hooks
- 3 offers

Then map the output to the "AI Variations" field in Jotform.

Result: Each experiment now includes ready-to-use variations.

Step 5 --- Run experiments

During the week:

• Pick 1--3 experiments
• Run them

That's it.

No dashboards. No complexity.

Step 6 --- Enter results in Google Sheets

Open your sheet.

Each row = one experiment.

For each experiment, enter:

• Traffic
• Conversions
• Baseline rate

This takes just a few minutes.

Step 7 --- Automatically flag real winners

This happens inside Google Sheets.

Set your columns first
Make sure your columns look like this:

• B = Traffic
• C = Conversions
• D = Baseline Rate

Add "Conversion Rate"

Add a new column called: Conversion Rate

Click the first cell in that column (example E2) and type:

=C2/B2

Press Enter, then drag the formula down.

Add "Z Score"

Add another column called: Z Score

Click the first cell (example F2) and type:

=(E2 - D2) / SQRT((D2*(1-D2))/B2)

Press Enter, then drag down.

Add "Winner Flag"

Add another column called: Winner Flag

Click the first cell (example G2) and type:

=IF(AND(B2>100, ABS(E2)>1.96), "Winner", "Keep Testing")

Press Enter, then drag down.

What happens now
After you enter:

• Traffic
• Conversions
• Baseline rate

Google Sheets will:

• Calculate your conversion rate
• Compare it to your baseline
• Check if the result is strong enough

Then it will label each experiment: Winner or Keep Testing

Important: This is just a quick check. It may not always be right. Use it to spot good experiments, then review them.

Step 8 --- Get notified when something works

In Zapier:

• Create a second Zap:
• Trigger: Google Sheets → Updated Row
• Filter: Only continue if Winner Flag = Winner
• Action: Send Email (or Slack)

Message (or something similar):

You have a winner:

{{Experiment Name}}\
Conversion Rate: {{Conversion Rate}}

Review now.

Result: When something works, you get notified automatically.

For best results

1. Keep it small. Run a small number of experiments per week (1-3).

2. Use simple tests. The best ones are:

• Headline changes
• Offer changes
• Distribution (where you post)

3. Be consistent... consistency beats creativity.

4. Don't overthink stats. Good enough is good enough. You don't need perfect math. You need clear direction.