> ## Documentation Index
> Fetch the complete documentation index at: https://docs.userboo.st/llms.txt
> Use this file to discover all available pages before exploring further.

# Activate. Engage. Retain.

> A strategic onboarding system that turns initial users into power users, driving meaningful product adoption.

## What is UserBoost?

Stop watching potential customers slip away. UserBoost intercepts users at their most vulnerable moments, transforming hesitation into engagement with surgical precision. A precision-engineered onboarding system that turns casual signups into raving product advocates.

<Note>
  **Most users quit before they reach your "Aha!" moment.** UserBoost helps you catch stuck users and guide them to value discovery through contextual experiences.
</Note>

## Get Running in Under 5 Minutes

Choose your stack and start catching stuck users today. No complex setup, no lengthy onboarding.

<CardGroup cols={3}>
  <Card title="Backend APIs" icon="server" href="/quick-start/backend-apis">
    **Node.js • Python • Go • PHP • Ruby**

    Server-side event tracking for APIs, webhooks, and background jobs. Most reliable approach.

    <div className="mt-3">
      <span className="inline-flex items-center gap-1 bg-primary-50 text-primary-700 px-3 py-1 rounded-full text-xs font-semibold">
        ✓ 5-min setup
      </span>
    </div>
  </Card>

  <Card title="Web Apps" icon="globe" href="/quick-start/web-apps">
    **React • Next.js • Vue • Angular • Vanilla JS**

    Frontend web application integration with real-time user tracking.

    <div className="mt-3">
      <span className="inline-flex items-center gap-1 bg-primary-50 text-primary-700 px-3 py-1 rounded-full text-xs font-semibold">
        ✓ Full support
      </span>
    </div>
  </Card>

  <Card title="Mobile Apps" icon="mobile" href="/quick-start/mobile-apps">
    **React Native • Flutter**

    Native mobile app integration with platform-specific optimizations.

    <div className="mt-3">
      <span className="inline-flex items-center gap-1 bg-primary-50 text-primary-700 px-3 py-1 rounded-full text-xs font-semibold">
        ✓ Native SDKs
      </span>
    </div>
  </Card>
</CardGroup>

### Not sure which to choose?

<Card title="Choose Your Path" icon="compass" href="/quick-start/index">
  Get personalized guidance on which integration method fits your application type and tech stack.
</Card>

## Popular Use Cases

<Columns cols={2}>
  <Card title="SaaS Onboarding" icon="users">
    Track key milestones like profile completion, first project creation, and
    feature adoption.
  </Card>

  <Card title="E-commerce Checkout" icon="shopping-cart">
    Monitor purchase funnels and recover abandoned carts with targeted emails.
  </Card>

  <Card title="Content Platforms" icon="newspaper">
    Engage new users with personalized content recommendations and engagement
    nudges.
  </Card>

  <Card title="B2B Tools" icon="briefcase">
    Track team onboarding, feature discovery, and collaboration milestones.
  </Card>
</Columns>

## Key Features

<AccordionGroup>
  <Accordion title="⚡ Optimized Event Format" icon="gauge-high">
    Streamlined payloads with simplified user identification and server-side
    context extraction from HTTP headers.
  </Accordion>

  <Accordion title="🔧 Flexible Integration" icon="server">
    Choose from Node.js SDK, direct REST API calls, or upcoming React
    Native/Flutter SDKs.
  </Accordion>

  <Accordion title="🎯 Automatic Retention" icon="bullseye">
    Detect when users abandon onboarding and automatically send personalized
    retention campaigns.
  </Accordion>

  <Accordion title="🔒 Privacy-First" icon="shield">
    GDPR compliant with first-party data collection. You own your data.
  </Accordion>
</AccordionGroup>

## Ready to Get Started?

<CardGroup cols={2}>
  <Card title="Get API Key" icon="key" href="https://userboo.st/register">
    Sign up and get your API key to start tracking events.
  </Card>

  <Card title="Choose Your Path" icon="rocket" href="/quick-start/index">
    Pick your tech stack and get running in under 5 minutes.
  </Card>
</CardGroup>