Demand · Growth Marketing

Growth Marketing Through Full-Funnel Experiments

We find exactly where your funnel loses customers and run fast experiments right there. That can be acquisition, activation, retention or monetization. Every test has a hypothesis, a metric and a decision, and the wins get built into the product and the marketing.

The problem

Growth has stalled, and every new channel costs more than the last.

What you get

  • An AARRR funnel with numbers at every stage
  • A North Star Metric the whole team works toward
  • A hypothesis backlog sorted by impact and cost
  • A weekly experiment rhythm instead of random tests
  • Higher activation and retention of new users
  • A knowledge base of what works for your product

Who it’s for

When You Need This Service

Acquisition costs more, and growth has slowed

Adding ad budget no longer pays off. The biggest opportunity is often in activation and retention, where you’ve already paid for the user.

Your testing is hit or miss

Tests launch whenever someone has an idea, results get eyeballed and decisions never get acted on. We build a system where every test feeds the next one.

Product and marketing work in silos

Marketing brings users in, the product loses them, and nobody sees the whole picture. A growth team works across both and owns the entire funnel.

Scope

What’s Included

Take the full scope or only the parts you need. We agree on what you’ll get before we start.

Funnel and metrics audit

The AARRR funnel, a North Star Metric, cohort analysis and the points where the most users drop off.

Hypothesis backlog

Hypotheses drawn from data, interviews and competitor analysis, prioritized with ICE or RICE.

Experiment design and launch

A/B, multivariate, holdout and fake door tests, with sample size and duration calculated up front.

Activation and onboarding

The path to first value, onboarding emails, in-app prompts and fewer steps to the aha moment.

Retention and reactivation

Behavioral segmentation, triggered emails, push and in-app messages, and winning back users who left.

Growth loops and referrals

Mechanics where every new user brings in the next ones, plus in-product referral programs.

In detail

How We Do It

What happens at each stage of the work and why.

The Funnel and the North Star Metric

Growth starts with knowing what to scale. We choose a North Star Metric that reflects customer value and ties to revenue, then break it down into its drivers. Then we build an AARRR funnel with real numbers to find the weakest spot.

  • Acquisition, Activation, Retention, Revenue and Referral, with conversion between stages
  • A breakdown of the North Star Metric into metrics you can move
  • Cohort retention analysis by channel and segment
  • Product analytics in Amplitude, Mixpanel or GA4

From an Idea to a Strong Hypothesis

An idea the team likes and a strong hypothesis are two different things. A hypothesis has a reason grounded in data, an expected effect and a metric that tells us the result. We prioritize the backlog by impact, confidence and cost, so the tests with the most potential go first.

  • The format “if we do X, metric Y will change, because Z”
  • Hypothesis sources in data, interviews, session recordings and feedback
  • Prioritization with ICE or RICE
  • An experiment card with the test design and decision criteria

Experiments You Can Trust

A test with too small a sample or the wrong metric leads to false conclusions, and the team ships changes that don’t work. We calculate sample size and duration in advance, pick the method for the job and read results with statistics, not by eye.

  • A/B and multivariate tests for pages, onboarding and pricing
  • Holdout tests to measure the long-term effect of campaigns
  • Fake door tests to check demand for a feature before building it
  • Pre-launch and post-launch checklists to avoid common mistakes

Retention and Repeat Purchases

Acquiring a new user costs many times more than keeping an existing one. We build lifecycle messaging for every stage, from activation to reactivation, and measure it by its impact on retention and LTV, not by open rates.

  • A lifecycle map from activation to engagement, retention and reactivation
  • Segmentation by behavior, RFM and lifecycle stage
  • Triggered email, push and in-app flows
  • Frequency caps so you don’t wear out your audience

Process

How We Work

Clear stages, weekly reports and decisions based on data.

  1. 01

    Audit

    We analyze the funnel, cohorts and data and choose a North Star Metric.

  2. 02

    Backlog

    We collect and prioritize hypotheses and plan the first experiments.

  3. 03

    Sprints

    Every week we launch and analyze tests and make decisions based on data.

  4. 04

    Locking in wins

    Winning changes go into the product and marketing, and the takeaways go into the knowledge base.

What You Keep

Documents, setups and reports that stay yours after the project.

  • Funnel and cohort audit report
  • North Star Metric and metric tree
  • Prioritized hypothesis backlog
  • An experiment card for every test
  • Lifecycle retention flows
  • Knowledge base of experiment results

What We Track

We agree on targets at the start and send a report every month.

  • North Star Metric
  • New user activation
  • Retention by cohort
  • Trial-to-paid conversion
  • LTV and LTV:CAC
  • Experiments per month and win rate

Tools We Use

If your tools do the job, we work in them. We suggest replacing only what gets in the way.

  • GA4
  • HubSpot
  • Google Ads
  • Meta Ads Manager
  • Looker Studio
  • Notion
  • Power BI
  • Miro
  • Coda
  • Asana

Growth Marketing FAQ

Don’t see your question? Email us at [email protected].

How is growth marketing different from performance marketing?

Performance marketing handles acquisition through paid ads. Growth marketing works across the whole funnel, from acquisition to retention and referrals, and often finds the biggest opportunity in the product and onboarding rather than in ads.

How much traffic do A/B tests need?

It depends on your baseline conversion rate and how big an effect we want to detect. With low traffic, we test bolder changes or use qualitative methods such as interviews and session recordings. We calculate sample size before every test.

How many experiments do you run?

Usually several a week, depending on traffic and development resources. What matters isn’t the count but the rhythm. Every week we review results and pick the next tests.

Do we need our own development team?

Not for tests on the website and in marketing channels, since we run those ourselves. For changes inside the product, we need access to your developers, or we bring in our own team.

What happens if a test loses?

That’s a result too. We record the takeaway in the knowledge base, figure out why the hypothesis didn’t work and write the next one. Losing tests keep you from shipping changes that would have hurt conversion.

Launch This WithIntrobloom

Request a free audit. We’ll dig into your product and send a plan that shows what to do first.