When does a growth advantage turn into a flywheel?

Here’s a pattern that's common in startup land:

A company grows quickly early on. Things feel easier than expected. Customers show up. Word spreads. Channels work. There’s momentum.

And somewhere along the way, the team starts to assume that momentum is structural. That it’s baked in. That it will keep showing up if they just keep doing roughly the same things. (A flywheel.)

Then growth gradually slows.

Not all at once, but enough that every win feels like it takes more effort than the last one did.

At that point, founders may say things like:

“Paid is getting more expensive.”
“This market is getting crowded.”
“We need to try some new channels.”
“Growth just feels harder than it used to.”

But what’s usually happening isn’t a channel issue or a creativity issue. It’s that the thing that helped early growth wasn’t actually compounding. It worked while conditions were favorable, and now it needs constant pressure to keep moving.

That’s the difference between growth advantages and flywheels.

A flywheel gets stronger as you grow.
An advantage just helps you move faster for a while.

Most companies have at least one advantage early on. Very few have a true flywheel. And a lot of founders don’t realize which one they’re dealing with until much later than they’d like.

What follows are the four flywheel types we see most often, what they actually look like in the real world, and how to tell whether you have one or you’re just benefiting from something temporary.

— Devon

The four flywheel types

Insight from Devon Reynolds — Demand Curve Creative Strategist

First, a quick reset: what we mean by a flywheel

A flywheel isn’t just “a thing that helps growth.”

A real flywheel has three properties:

Each new user makes the product more valuable for the next user
The system reinforces itself without proportional effort
The advantage gets harder to copy as it scales

If growth requires the same input every cycle, you don’t have a flywheel. You have momentum. (Momentum is great of course, but flywheels are better.) ;)

Flywheel #1: Network effects (the gold standard)

What it is
This is the cleanest flywheel to understand, and the hardest to fake.

A real network effect means that when someone new joins, existing users get more value without you having to do anything extra.

Think about a marketplace. More buyers attract more sellers. More sellers improve selection. Better selection attracts more buyers. Each loop makes the product more useful than it was before.

Common examples

Social networks
Marketplaces
Collaboration tools with cross-user interaction

How it actually works

More users → more value for everyone
Leaving means giving something up
Growth improves retention, not just acquisition

This is why companies like Facebook, Airbnb, and Slack compound so powerfully.

The most common mistake
Founders think they have network effects because:

They collect a lot of data
They have multiple user types
Users can technically interact

None of those guarantee a network effect.

For it to be real, each additional user must directly increase the core value for other users.

If growth just gives you more data, but doesn’t change the user experience in a meaningful way, it’s not a flywheel.

Flywheel #2: Scale flywheels

What it is
Scale flywheels show up when growth lowers your costs or improves your economics in a way that reinforces your core promise.

The obvious version is pricing. As volume increases, unit costs drop. That lets you lower prices, invest more, or spend more to acquire customers than anyone else.

Classic example
Amazon

More buyers → lower costs → lower prices → more buyers
And every cycle reinforces their promise.

Where this shows up

Price leadership
Margin advantages that can be reinvested
The ability to outspend competitors on acquisition

Ask yourself:

“Does getting bigger make us meaningfully better for customers, or just cheaper for us to operate?”

If the cost savings don’t translate into a stronger customer-facing advantage, the flywheel is weak.

Important reality check
Scale flywheels only matter if you have the biggest one.
If your main competitor scales at the same rate, the advantage cancels out.

Flywheel #3: Embedded flywheels (the most overestimated)

What it is
Embedded flywheels show up when a product "embeds" itself into someone’s workflow, habits, or daily life. The more they use it, the more work, data, or muscle memory gets wrapped around it.

This can show up as:

Workflow dependency
Data accumulation
Integrations
Habit

A common example
Salesforce
Every workflow, report, and integration makes it harder to leave.

Why founders love this one
It feels very real when you’re close to the product.

Why it’s often weaker than people think

Switching costs in software keep dropping
Migration tools keep improving
Habits are fragile without real value reinforcement

Embedded flywheels usually help retention, not acquisition or monetization. That makes them supportive, but rarely decisive on their own.

So this one only counts as a true flywheel if the embedding deepens with use and actually changes behavior over time. If it just creates mild inconvenience, it’s not much of a moat.

They’re strongest in complex B2B environments where multiple teams and systems are involved.

Flywheel #4: Brand flywheels (the most underrated)

What it is
This is the most misunderstood flywheel, and the one founders tend to wave away too quickly.

A brand flywheel doesn’t mean “we’re well-known.” It means that usage itself changes perception in a way that lowers friction for future customers.

There are a few distinct patterns here.

1. Breaking taboos or norms

Some companies grow by making something feel normal that once felt awkward or risky.

Hims is a good example. Early on, men weren't talking openly about hair loss or ED. They were avoiding the problem altogether. Every successful customer made the idea feel less embarrassing and more acceptable. Over time, the social friction dropped.

More users → more openness → less friction → more users.

Airbnb followed a similar pattern.

In the beginning, staying in a stranger’s home felt risky and weird.
Each good experience made the next person more comfortable. Growth itself softened the barrier.

More bookings → more trust → more hosts → more guests → more bookings.

2. Reinforcing a clear association

Some brands compound by owning one idea so consistently that decision-making friction disappears.

The obvious example here is Amazon. They didn't get known for convenience, it got known for defaultness. (Is that a word?)

When people repeatedly experience:

Fast shipping
Easy returns
Massive selection

The brain stops evaluating alternatives.

The flywheel becomes:
More customers → stronger association (“this plain works”) → less deliberation → more customers.

3. Community as the product

In some businesses, the community is the value. The product just organizes it.

There's a classic joke that illustrates this well.

How do you know if somebody does CrossFit?

Don't worry, they'll tell you.

The workouts aren’t proprietary. You could find any of them online for free and do them on your own. That's not why people join.

The flywheel lives in:

Shared identity
Local gyms
Group suffering and progress

Every new member strengthens the culture, which makes the next member more likely to join (and more likely to stay.)

Other examples:

Peloton using live classes and leaderboards
Duolingo reinforcing streaks, norms, and shared rituals
Notion where templates, sharing, and public workflows turn users into evangelists

Ask this question:

“If you removed the community, would the product feel materially weaker?”

If yes, you may have a brand flywheel.
If no, you probably just have a user base.

Does every company need a flywheel?

The short answer is "No."

Plenty of strong businesses grow with:

Good fundamentals
Clear positioning
Solid execution

They just grow linearly, not exponentially.

If you don’t have one, you have three real options:

Accept it
Build a durable, efficient business. Optimize fundamentals. Don’t chase mythical compounding.
Support it
Use boosters (pricing, channels, partnerships) to accelerate growth, knowing they won’t last forever.
Engineer toward one
This is slower and harder, but possible:
- Redesign product loops
- Shift brand strategy toward behavior change
- Introduce community or interaction where it actually adds value

The mistake is pretending a flywheel exists when it doesn’t. That’s how teams over-invest, misread signals, and burn time and money.

(If you want to learn more about how to engineer flywheels in your own business, we go much deeper in the Growth Program 2.0.)

Devon Reynolds
Demand Curve Creative Strategist