# OPEN\_APP

The OPEN\_APP command launches an application using its package name. This ensures deterministic app switching, especially in multi-app test flows.

**Syntax:**

**OPEN\_APP:** com.android.chrome

When to use:

1. Triggering to open an application
2. Cross-app journeys

### What is a Package Name?

A package name is a unique identifier assigned to every Android application.\
It defines the exact app Drizz should launch, ensuring precision regardless of device state or app order.

Few examples of package names:

* com.android.chrome — Google Chrome
* com.whatsapp — WhatsApp

### Best Practice:

It is recommended to place an **OPEN\_APP: \<package\_name>** command at the beginning of every test. This provides a clean and explicit starting point and avoids ambiguity when multiple apps are installed or involved in the workflow.

<br>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.drizz.dev/commands-reference/system-command/open_app.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.