Stop 01 · Product Management FoundationsTopics · 4/10

The Product Lifecycle

In short

Products are born, grow, settle and fade. What you should build next depends a lot on which stage your product is in right now.

Every product moves through introduction, growth, maturity and decline — and the right PM behavior (experimentation vs optimization vs sunsetting) changes drastically at each stage.

The purple blob waters a row of mango plants, from a tiny seedling to an old drooping tree.

Think of it like this

Growing a mango tree

A seedling needs daily watering and protection. A young tree needs space to grow fast. A full tree needs care to keep giving fruit. An old tree slowly gives less. You'd never treat all four the same way.

Watch it happen

A product's life, stage by stage

Develop

Launch

Growth

Maturity

Decline

1/5Develop: you test whether the problem is real and build a first version. Nobody is paying yet.

The big ideas

What you need to know

Know your stage

Look at user growth and revenue trends. They tell you roughly where your product sits right now.

Goals change by stage

Early on you chase learning. In growth you chase scale. In maturity you chase retention and profit.

Products can restart

A big new feature or market can push a mature product back into growth. It isn't a one-way street.

Save yourself the pain

Common mistakes

Oops

Running cost-cutting experiments on a product that hasn't found users yet.

Do this instead

Early products need learning speed. Optimise costs once growth is real and steady.

Oops

Ignoring signs of decline because revenue still looks fine this quarter.

Do this instead

Watch leading signs like falling new signups or engagement. They show decline before revenue does.

Your mission

Place five products on the curve

~15 min

Quick check

Your app's new signups have flattened, but existing users are loyal and paying. What should you focus on most?

Go deeper

1Map a product you use daily onto the 4 lifecycle stages.
2Identify what 'winning' looks like differently at each stage.
3Learn why a growth-stage playbook fails when applied to a mature product.