Stop 04 · Data & Metrics for PMsTopics · 2/12

AARRR / Pirate Metrics

In short

AARRR (say it like a pirate) splits the user lifecycle into five stages. It helps you find exactly where you're losing people instead of guessing.

A framework splitting the user lifecycle into Acquisition, Activation, Retention, Referral and Revenue — a fast way to locate where in the funnel a product actually has a problem.

The purple blob serves hot food to happy truck drivers at a roadside dhaba.

Think of it like this

The highway dhaba

Truck drivers notice the dhaba from the road (acquisition), love the first meal (activation), stop again next trip (retention), tell other drivers (referral) and pay every time (revenue). Lose them at any stage and business shrinks.

Watch it happen

AARRR for a language learning app

Acquire

Activate

Retain

Refer

Revenue

1/5Acquisition: people find you through ads, search or friends. Track installs by source.

The big ideas

What you need to know

Acquisition

How users first arrive. Compare channels by quality of users, not just by count.

Activation

The first moment of real value. Define it as one clear action, like sending a first message.

Retention

Often the most important stage. If users don't stay, every other stage leaks money.

Referral and revenue

Happy users bring friends and pay. Both are hard to grow without strong retention first.

Save yourself the pain

Common mistakes

Oops

Spending more on acquisition when retention is weak.

Do this instead

Fix activation and retention first. Otherwise you're pouring water into a bucket with holes.

Oops

Defining activation as "signed up".

Do this instead

Signing up isn't value. Pick the action that predicts users will stick around.

Your mission

AARRR an app you use

~20 min

Quick check

Lots of people install your app, but most never finish the first lesson. Which stage needs work?

Go deeper

1Map a product you use onto the 5 AARRR stages with one metric each.
2Identify which stage is usually the weakest for early-stage products, and why.
3Practice diagnosing 'we have a growth problem' into 'we have an activation problem', specifically.