AUG v3 vs Growth Loops — diagnostic vs compounding-mechanism
Brian Balfour (CEO, Reforge) popularized Growth Loops — the idea that durable growth comes from closed-loop systems where outputs feed back as inputs. AUG v3 measures whether your loops are actually compounding. They're different abstractions of the same underlying truth.
What is the Growth Loops framework?
Growth Loops reframes growth from a funnel (one-way pipe) to a loop(output feeds back as input). The canonical example: every new user signs up, creates content, content gets indexed by Google, new users find that content via search, sign up themselves. Output (content) becomes input (acquisition channel). Strong loops compound; weak loops require external fuel.
Balfour's argument: SaaS founders should stop optimizing funnels (linear) and start engineering loops (compounding). The math is clear — every additional input cycle adds proportionally to growth velocity.
What is AUG v3?
AUG v3 is a 7-factor diagnostic that scores SaaS growth health on a 0-100 composite. Factors: Acquisition, Activation, Engagement, Retention, Advocacy, Monetization, Performance. Each factor 1-10; composite via geometric mean × 10. The framework diagnoses where in your funnel growth is leaking.
Side-by-side
| Dimension | Growth Loops | AUG v3 |
|---|---|---|
| Mental model | Closed-loop systems with compounding outputs | 7-factor diagnostic with composite score |
| Primary question | “What is my loop, and is it closed?” | “Where is growth friction RIGHT NOW?” |
| Output | Loop diagram + qualitative health check | 0-100 composite + per-factor breakdown + named weakest factor |
| Best for | Strategic clarity on what business model to build | Tactical clarity on what to fix this week |
| Measurability | Qualitative; requires custom analytics per loop | Quantitative; 60-second self-serve audit |
| Time scale | Quarterly / annual planning | Weekly diagnostic |
| Audience | VP Growth, growth-team leads, Series B+ founders | Solo founders, indie hackers, early-stage product teams |
How they compose
Growth Loops tells you what kind of business to build. AUG v3 tells you what to do next Tuesday. The flow:
- Use Growth Loops to design your business model. Pick the 1-3 loops you believe will compound. Sketch them.
- Build the loops. Ship MVP.
- Use AUG v3 to diagnose where loops are leaking. The Advocacy factor directly measures “is my viral loop closing?”. Retention measures “is my engagement loop closing?”. Acquisition measures “is my content loop closing?”.
- Fix the leaks weekly using AUG\'s per-factor deep dives.
- Re-architect loops quarterly if a factor is stuck. If Advocacy stays <3 for 6 months, your loop design is structurally wrong — back to step 1.
Mapping AUG factors to Growth Loops
| AUG Factor | Growth Loop it measures |
|---|---|
| Acquisition | Content / SEO / GEO loops — is your output (pages, embeddable widgets) returning as input (new users)? |
| Activation | First-session loop — does the new-user funnel close in time-to-first-value? |
| Engagement | Core-action loop — is the product's core mechanism repeating per session? |
| Retention | Habit loop — is the product earning a place in the user's memory across days/weeks? |
| Advocacy | Viral loop — is the share/referral mechanism completing the closed cycle? |
| Monetization | Revenue loop — does paid revenue compound (LTV expansion, referrals, upsells) or stagnate? |
| Performance | Cross-loop multiplier — Performance amplifies or attenuates every other loop's velocity |
When to use which
Use Growth Loops when: picking a business model. Choosing between product-led vs sales-led vs content-led. Designing the long-term mechanism that will compound for years.
Use AUG v3 when: the business model is decided + shipped. Need to diagnose where leaks are in the current funnel. Pick the single highest-leverage fix for this week.
Use both: Loops at the quarterly strategy level. AUG at the weekly operations level. Each provides what the other can't.
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