What metrics should a solo SaaS founder track?

Summary

You do not need fifty charts. Most solo founders do fine with five numbers: MRR, churn, activation, traffic, and runway.

You do not need fifty KPIs. Solo founders move faster with a short list checked every week. These five cover money, retention, product use, growth, and survival.

1. MRR

Are subscriptions growing? MRR is your monthly run rate from recurring plans. How to calculate MRR.

2. Churn

Are customers leaving faster than you replace them? Track gross MRR churn monthly. Churn formula.

3. Activation

Do new signups reach first value (first project, first export, first paid conversion)? Pick one event in GA4 and watch the rate week over week.

4. Traffic / acquisition

Where are signups coming from? One channel slipping can explain a quiet Stripe week later. Check sessions and top sources in Google Analytics.

5. Runway

Months of cash left at current burn. Recalculate when MRR or expenses shift. Runway formula.

What to skip early on

CAC payback, cohort LTV precision, and board-style reporting can wait until you have steady MRR and paid acquisition. Start with the five above. Add depth when a number stays red for three weeks straight.

See what FlarePath watches for how these map to a weekly Guide.