Author of this article: Andreas Soller

Product growth

In this article we focus why growth models became more popular than distribution funnels and what challenges growth loops face with changed user behaviour through AI.

Reading time of this article:

10 min read (2223 words)

This article is tagged as:

Product + Growth

Building a digital product that works is only one side of the coin. The other half is distribution. Without a go-to-market strategy (GTM) the best product cannot be scaled.

Product side

Building something functional, valuable, and user-friendly. This is the product or creation side.

Distribution side

Getting the product into the hands of the right people. This is the distribution or growth side.

From distribution funnels to loops

For any product, you must be able to answer the following questions in a predictable, sustainable and differentiable way:

  • How do you acquire?
  • How do you activate?
  • How do you retain?
  • How do you monetize?

AAARRR (Pirate metrics)

To do this in a structured way, funnel frameworks were introduced. One of the most popular framework is the AAARRR (Pirate Metric) framework that was introduced by Dave McClure in 2007. Each phase involves its own set of activities and metrics and there is no rigid sequence.

Stage User perspective
1 A Awareness People discover your brand or product
2 A Acquisition They take the first steps (visit, sign up)
3 A Activation They experience the core value (aha-moment) your product offers
4 R Retention They keep coming back
5 R Referral They recommend your product to others
6 R Revenue You monetize their engagement

Especially with digital products funnel frameworks faced some limitations:

  • They treat distribution as something external to the product. This can lead to silos between product and distribution (marketing)
  • Funnels require external budgets to fund for example social media marketing.
  • They don’t capture how user behaviour itself drives growth
  • The linear structure of funnels indicate a one way flow and all measurements have only one target

The question arose, what happens if product and distribution are not separate activities. What if growth could be driven mainly by the product and therefore, user behaviour, instead of externalised distribution activities.

This leads to growth funnels and also hybrid approaches where funnels and loops are used next to each other.

Product-led growth loops

“The product sells itself, it acquires on its own and it's highly habitual in nature (…) You need to stand out with your product experience.”
Elena Verna (2025b)

Growth Loop

A loop is a circle where one action feeds into the next, creating continuity.

A growth loop is a self-reinforcing cycle where each user action creates a potential to create more of a desired outcome that feeds back into the cylce.

The idea is to think how your product meets acquisition, activation, retention and having monetization at its core as this is, what keeps your business going. Your product itself is the distribution channel or is the essential part of growth.

  • This leads to self-reinforcing cycles where each user interaction can gernate more users, more content or more transactions.
  • Lower acquisition costs as growth is embedded in the product experience
  • *Compounding effects as loops multiply over time, creating momentum

Types of Growth Loops

Type Description Examples
UGC Loops Users create content that attracts new users Instagram, YouTube, Substack
Viral Loops Content spreads widely via social sharing TikTok, WhatsApp
Collaborative Loops Users invite teammates to collaborate Slack, Miro, LinkedIn
Product Usage Loops Product use itself pulls in others Zoom, Dropbox (file sharing)
Marketplace Loops Buyers and sellers attract each other Airbnb, Amazon
Referral Loops Users invite friends with rewards Dropbox (storage), Uber

User-generated content (UGC) loops

User-generated content loop

The creative content created by users becomes the fuel that attracts more users. Each new user adds more content, which in turn draws in even more people, creating a cycle that sustains itself without reliance on external marketing and distribution activities.

  1. Creation: Users produce posts, videos, photos, reviews, etc.
  2. Distribution: The platform makes this content visible through feeds, algorithms, or social sharing. Creative content accumulates over time and builds long term value
  3. Attraction: Non-users or casual viewers encounter the content and join the platform to also create creative content
  4. Repetition: New users feed the cycle again

Metric examples:

Phase Metric Example
Creation Content creation rate 25% of users publish at least one post monthly
Distribution Average reach per post Each post generates ~5,000 impressions
Attraction Content-to-signup conversion 3% of viewers sign up after seeing content
Repetition Repeat creation rate 40% of new users post again within 7 days

Viral loops

Viral loops

Users share content that is spread to a wider audience, usually supported by algorithms. This attracts more users leading to a self-reinforcing adoption cycle. Viral loops thrive on social sharing and visibility.

  1. Create: A user generates something engaging such as a video, meme or message
  2. Distribute: The content is distributed widely and speedy through social platforms, messaging apps or built-in sharing features
  3. Attract: New viewers encounter the content, become curious and sign up to view more content. The content is usually short lived. Attraction is achieved via a stream of constantly newly hyped and generated content.
  4. Repeat: These new users create and share their own content

Metric examples:

Phase Metric Example
Create Content creation rate 30% of users publish at least one video per week
Distribute Average shares per content item Each TikTok video is shared ~4 times on average
Attract Viewer-to-signup conversion rate 8% of viewers sign up after watching shared content
Repeat Repeat creation rate 50% of new users post their own content within 10 days

Collaborative loops

Collaborative loops

This loop relys on teamwork and shared participation. Collaboration loops expand because one person’s use of the product requires and encourages others to join in to unlock its full value.

  1. Invite: A user sets up a workspace, project or board in a collaborative tool and starts inviting colleagues
  2. Join: Colleagues, classmates, or friends join to work together
  3. Collaborate: The group works together inside the product (brainstorming, planning, editing, chatting, etc.)
  4. Repeat: Each new participant may start their own workspace and invite additional teammates

Metric examples:

Phase Metric Example
Invite Workspace/project creation rate 40% of active users create at least one new workspace per month
Join Average invitations per initiator Each new Slack workspace generates ~5 teammate invites
Collaborate Active collaboration rate 70% of invited users participate in shared projects within 7 days
Repeat Repeat workspace creation rate 30% of new collaborators start their own workspace within 14 days

Product usage loops

Product usage loops

Using the product itself naturally brings in new users. Each action by an existing user requires or encourages participation form others, creating a self-reinforcing cycle. This reduces acquisition costs and multiplies usage.

  1. Initiation: A user begins using the product for its core purpose
  2. Involvement: The user invites other people to participate
  3. Exposure: The invited participants experience the product firsthand, often without prior sign-up
  4. Adoption: Some exposed participants recognize the product’s value and sign up
  5. Repetition: New users initiate their own product

Metric examples:

Phase Metric Example
Initiation Product action initiation rate 60% of active users host at least one Zoom meeting per month
Involvement Average participants per action Each Dropbox file share involves ~3 recipients
Exposure Participant exposure-to-signup conversion 12% of Zoom meeting guests create an account after joining
Adoption Activation rate of new signups 45% of new Dropbox users upload a file within 48 hours
Repetition Repeat initiation rate 35% of new Zoom users host another meeting within 7 days

Marketplace loops

Marketplace loops

A marketplace loop is a self-reinforcing cycle where the presence of more sellers attract more buyers, and more buyers in turn attract more sellers, creating continuous growth and compounding network effects.

  1. Incentive: The platform motivates sellers to join by offering rewards, visibility, or revenue opportunities
  2. Supply: Sellers list products or services, expanding the marketplace’s offerings
  3. Demand: Buyers are drawn to the marketplace because of the growing supply.
  4. Repetition: Successfull transactions encourage more sellers to join and more buyers to return

Metric examples:

Phase Metric Example
Incentive Seller sign-up rate 15% monthly growth in new Airbnb hosts after incentive campaigns
Supply Active listings growth Amazon marketplace adds ~50,000 new product listings per day
Demand Buyer-to-listing conversion rate 10% of visitors book a stay after browsing Airbnb properties
Repetition Repeat transaction rate 40% of buyers make another purchase within 30 days

Referral loops

Referral loops

A referral loop is a growth mechanism where existing users invite new users, often incentivized by rewards. Each new user can then refer others, creating a self-reinforcing cycle.

  1. Initiation: A user experiences the product and finds it valuable
  2. Incentive: The platofrm offers a motiviation to invite others
  3. Invitation: The user shares referral links, codes, or invites with friends
  4. Repetition: The invited user joins the product and experiences the core product value

Metric examples:

Phase Metric Example
Initiation User satisfaction/engagement rate 70% of new users complete the onboarding flow and experience the core product value
Incentive Referral incentive participation rate 45% of active users engage with the referral program (e.g., claim bonus storage or credits)
Invitation Average referrals per user Each Dropbox user sends ~3 referral invites on average
Repetition Referral-to-signup conversion rate 25% of invited friends sign up and begin using the product

New challenges in the AI era

Signal vs. noise

With the advance of AI more and more synthetic data is generated at scale. AI does not just consume but also produce data at scale. This erodes the moat of companies that rely on user data as you make more and more decisions based on artificial behaviour than real user behaviour. It also becomes unclear where the data originates.

Growth loops must learn how to exclude synthetic content. They can only grow with authentic signals and risk becoming self-reinforcing cycles of noise.

With AI consumer habits are changing and therefore, transforming distribution channels. People are not using Google to search but rather use conversational AI agents to ask.

Distribution via search engine optimization / marketing (SEO/SEM) and also social media marketing experiences a radical shift.

Vibe coding

“And seemingly overnight, companies started to compete against their own customers”
Elena Verna (2025)

Vibe coding

Vibe coding is a new approach to software development where you describe what you want in natural language, and an AI generates the code for you.

With the advance of vibe coding through AI it has become very easy for everyone to create your own software. Simple functionalities that are easy replicable, can be re-created effortless by everyone and even big companies can be challenged. Additionally, the cost and structural complexity of creating software through vibe coding is going down.

Growth loops must rely on experience, trust, and ecosystem, not just functionality. As AI accelerates cloning of features, ecosystems can help. Network effects include growth loops by many partners, trust by community validation, the product is discoverable in multiple contexts and ecosystem positioning cannot be copied.

Shipping velocity

AI speeds up iteration cycles. What took weeks or months can now be done in hours or days. Therefore, even small teams or individuals can become creators that can replicate features easily using vibe coding or AI-assisted development.

Growth loops are faced with faster cycles. Products that can’t adapt can easily fall behind and can bei jijacked by competition. Also, users expect improvements faster.

Brand-product fusion

As users are not searching via Google but asking AI agents, those assistants don’t show ads, campaigns or your brand context. The assistant just shows the information unrelated to your brand. AI strips away traditional brand channels.

As AI reshapes distribution, the product experience itself must embody the brand — otherwise loops lose their compounding power. Growth loops must include the emotional journey, such as making the people behind the product visible (example: founder social) or involve involver / creator marketing.

References and further reading

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