> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.anghello.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Discovering the add-ons


Add-ons bring advanced features to your Anghello subscription. This guide introduces the available add-ons and how to check which ones are active.

**Audience:** Administrators, Managers
**Application:** Admin (app.anghello.co)
**Estimated time:** 5-minute read

## Available add-ons

| Add-on | What it brings |
| ---- |
| **Pre-registration** | Schedule visits ahead of time, send email invitations, and let visitors check in faster on arrival. |
| **Instruction acknowledgment (Quiz)** | Add a quiz after the entry instructions to confirm that visitors have understood the safety rules. |
| **API & Webhooks** | Access Anghello data via the API and receive automatic notifications in your own applications through webhooks. |
| **Advanced fields** | Unlock additional custom field types to collect more precise information. |

## Checking your active add-ons

**1.** In the left-hand menu, go to **Configuration** > **Organization** > **Subscription**.

**2.** The **Active add-ons** section lists every add-on included in your subscription, with its status:

* **Active** — The add-on is available and working
* **Trial** — The add-on is in a trial period, with an end date shown

## Spotting a missing add-on

If an add-on isn't included in your subscription, the corresponding feature appears **grayed out** in the site settings overview. Clicking it brings up a message explaining which add-on is required and offering to contact our team.

## Requesting an add-on

To add an add-on to your subscription:

**1.** From the Subscription page, click **Request a plan change**.

**2.** Specify the add-on(s) you want.

**3.** Our team will get back to you to finalize the addition.

### Good to know

> 💡 **Tip:** Some add-ons are offered as a free trial when you sign up. Make the most of it to test the features before committing.

> 💡 **Tip:** Add-ons are added at the organization level. Once enabled, an add-on is available on all your sites.

## Related articles

* [Understanding your subscription and limits](https://help.anghello.com/en/article/understanding-your-subscription-and-limits-130n0d8/)
* [Requesting a plan change](https://help.anghello.com/en/article/requesting-a-plan-upgrade-1ka4jk8/)
* [Configuring pre-registration](https://help.anghello.com/en/article/configure-pre-registration-13dedu9/)
* [Setting up an acknowledgment quiz](https://help.anghello.com/en/article/set-up-a-validation-quiz-1khzki6/)
* [Using API keys](https://help.anghello.com/en/article/using-api-keys-15itwbd/)