PM Growth Loops Guide
(2026 Edition)
5 types of growth loops, 5 steps to build one, 5 diagnostic questions for broken loops, and 5 tests for compounding growth.
Build Growth PM Skills Daily — Free →5 Types of Growth Loops
1. Viral loop
User invites others who become users who invite others. Self-reinforcing.
💡 Example: WhatsApp: you join because friends are there, and invite more friends.
2. Content loop
User creates content that attracts more users via search / social.
💡 Example: Quora: questions asked rank on Google, bringing more visitors, who ask more questions.
3. Paid loop
Revenue from users pays to acquire more users, compounding scale.
💡 Example: SaaS: ₹1 LTV × conversion × paid CAC = growing ad budget each month.
4. PLG loop (product-led growth)
Product usage expands to teams/orgs, generating more revenue and more users.
💡 Example: Slack: one team adopts → colleagues join → company buys enterprise.
5. Network-effect loop
Product becomes more valuable as more users join, retaining each better.
💡 Example: Uber: more riders attract more drivers, which reduces wait times, which attracts more riders.
5 Steps to Build a Loop
Start with a 'single loop' mindset — which ONE loop should your product optimise for?
Map each step of the loop explicitly — where does a user become an input to the next cycle?
Instrument each step — conversion at every loop stage
Identify the leakiest step — fixing there has highest ROI
Measure loop velocity — how fast does one cycle complete? Faster = more compound
5 Diagnostics for Broken Loops
If virality is weak: Is there a natural share moment? Are we making sharing easy?
If content isn't driving growth: Are we creating indexable content? Is SEO working?
If paid isn't working: Is CAC < LTV? Are we acquiring the right users?
If PLG is stalling: Is the product valuable solo? Does team adoption create more value?
If network effects weak: Are new users getting value without needing many others first?
5 Tests for Compounding Growth
If we doubled users, would LTV stay the same or grow? (Yes = network effects)
Do users acquired in month 1 bring new users in month 2? (Yes = viral/content)
Does ad spend per new user stay flat or drop as we scale? (Yes = working paid loop)
Do individual users' accounts tend to grow over time? (Yes = PLG working)
Is organic traffic growing faster than paid acquisition? (Yes = content loop working)
FAQ
Should every product have a growth loop?
Every product should have at least ONE working loop, or growth requires constant new ad spend. The strongest companies have multiple compounding loops. Products with no loops hit a plateau where each new user costs the same as the last — unsustainable at scale.
What's the biggest PM mistake with growth loops?
Confusing 'features that might drive growth' with actual loops. A referral program with 3% share rate isn't a loop — it's a nice-to-have. A real loop has clear 'input → process → output → back to input' structure with measurable compounding. If you can't diagram it on a whiteboard, you don't have a loop yet.
Build Growth PM Intuition Daily
Daily scenarios on loops, funnels, retention, and compounding product mechanics.
Start Free Trial →