---
title: "Set up Coherence"
description: "The first time you sign in, accept the policies, allow the camera and take a short first scan."
---

> eSSESSMENT docs. Web page: https://presagetech.com/docs/essessment/app-first-run
> Index of all pages: https://presagetech.com/docs/essessment/llms.txt

# Set up Coherence

## Guide

<ol class="guide">
<li>

#### Read "Ready to Go?"

Coherence explains that it uses your camera to detect tiny signals invisible to the eye and turn them into health insights.

<figure class="shot phone">

![Welcome to Coherence, Ready to Go? screen](https://presagetech.com/docs/essessment/assets/app/welcome.jpg)

<figcaption>Welcome</figcaption>
</figure>

</li>
<li>

#### Read the policies

The **Terms & AI Insights** card covers two things: Presage's policies, which are required, and AI Insights. Read the policies before you agree:

- [Privacy Policy](https://coherence.presagetech.com/legal/privacy/2026-11-02/)
- [Terms of Service](https://coherence.presagetech.com/legal/tos/2026-11-02/)

The same links are in the card when you tap **View details**.

<figure class="shot phone">

![Terms and AI Insights details expanded](https://presagetech.com/docs/essessment/assets/app/welcome-details.jpg)

<figcaption>View details</figcaption>
</figure>

</li>
<li>

#### Understand AI Insights

AI Insights lets Coherence use your wellness data to answer your questions in [Chat](https://presagetech.com/docs/essessment/app-chat) and explain your results. With it on, Coherence shares:

<ul class="set"><li><b>What:</b> your questions, conversation history, heart rate, breathing rate, HRV, and relevant profile, activity or trend context.</li><li><b>With whom:</b> Presage and third-party AI providers, including Anthropic.</li><li><b>Video:</b> camera video may be streamed to Presage for measurement, but it isn't sent to third-party AI providers.</li></ul>

</li>
<li>

#### Choose whether to accept

It's your choice whether to accept. One checkbox, **I agree to the required policies and allow this sharing for AI Insights**, covers both the policies and AI Insights.

<ul class="set"><li><b>To accept:</b> check the box and tap <b>Continue</b>.</li><li><b>Not to accept:</b> leave it unchecked. Setup can't continue without it, so you won't be able to use Coherence.</li></ul>

If you accept but would rather not use AI Insights, you can turn it off at any time in **Settings › Privacy**, under **AI Insights**. See [Privacy](https://presagetech.com/docs/essessment/app-privacy).

<figure class="shot phone">

![Terms and AI Insights accepted](https://presagetech.com/docs/essessment/assets/app/welcome-accepted.jpg)

<figcaption>Accepted</figcaption>
</figure>

</li>
<li>

#### Get ready for your first scan

Find a comfortable spot where you can pause for about a minute and a half. Tap **I'm Ready**.

<figure class="shot phone">

![Find a Comfortable Spot screen](https://presagetech.com/docs/essessment/assets/app/first-scan-intro.jpg)

<figcaption>Find a Comfortable Spot</figcaption>
</figure>

</li>
<li>

#### Allow the camera

Coherence asks for camera access to measure your vitals by analyzing your face. Tap **Allow**.

<figure class="shot phone">

![iOS prompt asking to allow camera access](https://presagetech.com/docs/essessment/assets/app/camera-permission.jpg)

<figcaption>Camera access</figcaption>
</figure>

</li>
<li>

#### Take the scan

Hold still with your face in the frame while the scan runs. See [Hold still for the reading](https://presagetech.com/docs/essessment/app-run-activity#hold-still-for-the-reading).

</li>
</ol>

If you tap **Don't Allow** on the camera prompt, scans can't run. Turn the camera on later in your phone's Settings, under Coherence.