> For the complete documentation index, see [llms.txt](https://innexum.gitbook.io/innexum-apps/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://innexum.gitbook.io/innexum-apps/myownsim/installation-and-setup/installing-the-android-app.md).

# Installing the Android App

After downloading the application, follow these steps to properly install MyOwnSIM.

#### Locate the APK File on your Android phone

1. Use your phone’s **File Manager** app or **Downloads** folder to find the MyOwnSIM APK file.
2. The file will typically have a name like **`MyOwnSIM.apk`**

#### Install the APK

1. Tap on the APK file.
2. You will see a prompt asking if you want to install this app.
3. Tap **Install**.
4. Wait a few moments while the app installs.

{% hint style="danger" %}
After taping on the apk, you might get a prompt warning you that *this is not a trusted source*. Please follow the instructions to allow the installation before proceeding with the onboarding steps, as this is crucial for the app to work properly.
{% endhint %}

#### Confirm the installation and open the App

1. Once installed, you will see a confirmation message.
2. Tap **Open** to launch the MyOwnSIM app.
3. You can now start configuring your phone as your SMS gateway and call interface.

***

#### IMPORTANT: If you ever receive an UPDATE notification

* Receiving an update notification means the application is getting either a new functionality, some minor bugs were fixed or safety issues were resolved. It is **critical** to accept this update notification.

***

#### Safety Concerns

* Installing an APK from a trusted source is safe and common practice for many business apps.
* Always ensure the APK file is provided by your **official integration** team or a **verified source**.
* Avoid downloading APK files from **unknown websites** or suspicious links.
* After installation, you can disable the “*unknown sources*” permission to keep your phone secure.
* If you encounter any warnings or errors, do not hesitate to contact your support team for help.