Master the fundamentals of product management, from user research and analytics to strategy, prioritization, communication, and execution.

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Product Management Basics

Learn how to leverage AI in product management. Master AI fundamentals, prompt engineering, and practical applications for PMs.

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AI for Product Managers

Learn how to do competitive analysis. Master the fundamentals of competitive analysis and how to use it to make better product decisions.

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Competitive Analysis for Product Managers

## Retention Tracks Whether Users Return

Retention tracks whether users from a starting group return in later periods. Define what counts as returning and which period you will compare. Churn measures losses, while time to value can help investigate how quickly users find a useful result.

```productme-visual
{"asset":"resource:assets/content/b726bbe4-8a0c-4649-b9ec-489294e35076/pm-retention-cohort.visual.json"}
```

The schematic follows one starting cohort across later periods; it does not represent measured retention.

<h2>Retention Tracks Whether Users Return</h2>
<p>Retention tracks whether users from a starting group return in later periods. Define what counts as returning and which period you will compare. Churn measures losses, while time to value can help investigate how quickly users find a useful result.</p>
<pre><code class="language-productme-visual">{"asset":"/content/b726bbe4-8a0c-4649-b9ec-489294e35076/pm-retention-cohort.visual.json"}
</code></pre>
<p>The schematic follows one starting cohort across later periods; it does not represent measured retention.</p>


In a day-one retention calculation, what is being measured?

<p>In a day-one retention calculation, what is being measured?</p>


A churn rate of 10% means 10 out of every 100 customers stopped using the product in a specific period.

<p>A churn rate of 10% means 10 out of every 100 customers stopped using the product in a specific period.</p>


## Time to Value Supports Retention

Time to value measures how long a user takes to reach a useful result. A shorter wait may support later engagement, but repeat use still needs to be measured separately. Compare users with similar needs and inspect the experience behind the numbers.

```mermaid
flowchart TB
  N0["First use"]
  N1["Useful result"]
  N0 --> N1
  N2["Time to value"]
  N1 --> N2
```

Time to value measures the wait for a useful result. It can help explain retention, but does not itself measure repeat use.

<h2>Time to Value Supports Retention</h2>
<p>Time to value measures how long a user takes to reach a useful result. A shorter wait may support later engagement, but repeat use still needs to be measured separately. Compare users with similar needs and inspect the experience behind the numbers.</p>
<pre><code class="language-mermaid">flowchart TB
  N0["First use"]
  N1["Useful result"]
  N0 --> N1
  N2["Time to value"]
  N1 --> N2
</code></pre>
<p>Time to value measures the wait for a useful result. It can help explain retention, but does not itself measure repeat use.</p>


<p>What does Time to Value (TTV) indicate?</p>


Increasing retention leads to a higher Lifetime Value (LTV) for SaaS businesses.

<p>Increasing retention leads to a higher Lifetime Value (LTV) for SaaS businesses.</p>


Minutes until a new user gets their first useful result measure {{gap}}. Whether that same user returns in later weeks measures {{gap}}.

<p>Minutes until a new user gets their first useful result measure {{gap}}. Whether that same user returns in later weeks measures {{gap}}.</p>


## Retention, Lifetime Value, and Acquisition Cost

Lifetime Value (LTV) estimates the value a customer generates over the relationship. Customer Acquisition Cost (CAC) measures the cost of acquiring a new customer. Longer retention can support LTV, but does not automatically reduce CAC. Use consistent definitions and inspect how both change.

```mermaid
flowchart TB
  A["Retention"] --> B["Longer relationship"]
  C["Acquisition cost"] --> D["Cost per new customer"]
```

Further reading: [Stripe on customer lifetime value](https://stripe.com/resources/more/customer-lifetime-value).

<h2>Retention, Lifetime Value, and Acquisition Cost</h2>
<p>Lifetime Value (LTV) estimates the value a customer generates over the relationship. Customer Acquisition Cost (CAC) measures the cost of acquiring a new customer. Longer retention can support LTV, but does not automatically reduce CAC. Use consistent definitions and inspect how both change.</p>
<pre><code class="language-mermaid">flowchart TB
  A["Retention"] --> B["Longer relationship"]
  C["Acquisition cost"] --> D["Cost per new customer"]
</code></pre>
<p>Further reading: <a href="https://stripe.com/resources/more/customer-lifetime-value">Stripe on customer lifetime value</a>.</p>


What should the relationship between LTV and CAC be for profitability?

<p>What should the relationship between LTV and CAC be for profitability?</p>


User retention metrics help identify both product strengths and areas for improvement.

<p>User retention metrics help identify both product strengths and areas for improvement.</p>


## Investigate Why Users Stay or Leave

In conclusion, retention metrics are critical to understanding product-market fit and user satisfaction. High retention signals strong product performance and leads to business growth.

```mermaid
flowchart TB
  N0["Retention pattern"]
  N1["User context"]
  N0 --> N1
  N2["Product decision"]
  N1 --> N2
```

<h2>Investigate Why Users Stay or Leave</h2>
<p>In conclusion, retention metrics are critical to understanding product-market fit and user satisfaction. High retention signals strong product performance and leads to business growth.</p>
<pre><code class="language-mermaid">flowchart TB
  N0["Retention pattern"]
  N1["User context"]
  N0 --> N1
  N2["Product decision"]
  N1 --> N2
</code></pre>


What does a high retention rate indicate about a product?

<p>What does a high retention rate indicate about a product?</p>


Churn rate and retention rate are unrelated metrics.

<p>Churn rate and retention rate are unrelated metrics.</p>
