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

# What You Can Build

> App categories, real examples, and what the protocol makes possible.

## App Categories

Elata apps span four main categories. Each uses the same protocol infrastructure but targets different user behaviors.

| Category     | What It Does                                     | Example Use Case                                           |
| ------------ | ------------------------------------------------ | ---------------------------------------------------------- |
| **Focus**    | Attention training, productivity enhancement     | Neurofeedback sessions that reward sustained attention     |
| **Gaming**   | Competitive or casual games with token mechanics | Chess with neural HUD overlays, reaction-time contests     |
| **Wellness** | Health monitoring, breathing, meditation         | Guided breathwork with live EEG or rPPG biometric feedback |
| **Research** | Data collection, citizen science, experiments    | EEG data studies with participant token incentives         |

***

## What Makes An Elata App Different

An Elata app is not just a web app with a token bolted on. The protocol gives you:

* **Price discovery** through bonding curves that graduate to DEX liquidity
* **Fee routing** that splits revenue between contributors and the protocol treasury
* **Community tools** like tournaments, NFT items, and staking
* **Governance hooks** so token holders can participate in app-level decisions

You focus on the product experience. The protocol handles the economics.

***

## Building With Biometrics

Many Elata apps use the [Biometric SDK](/sdk/overview) to add real-time biosignal processing:

* **Camera rPPG** for heart rate, stress, and arousal feedback (no hardware needed)
* **EEG via Web Bluetooth** for brain-signal analysis with Muse headsets
* **Signal processing** for band powers, calmness models, and alpha detection

These integrations are optional. You can build an Elata app with or without biometrics.

***

## Next

<CardGroup cols={3}>
  <Card title="App Lifecycle" icon="recycle" iconType="light" href="/apps/app-lifecycle">
    How apps launch and graduate
  </Card>

  <Card title="Builder Overview" icon="hammer" iconType="light" href="/apps/build/overview">
    Start building
  </Card>

  <Card title="Explore Apps" icon="compass" iconType="light" href="/apps/users/explore-apps">
    See what's live
  </Card>
</CardGroup>