# Why does Android block the installation of the Agent app? Since the Agent app is not available on Google Play (due to data access policies), you will need to install it manually as an APK file. By default, Android devices block apps that are installed from outside the Play Store. This protection is called **Google Play Protect**, and it may show warnings like: * “This app may harm your device.” * “Blocked by Play Protect” These messages appear **not because the app is harmful**, but simply because Google Play has not verified it. To install the Agent app successfully, you need to: 1. **Disable Play Protect temporarily** (optional but recommended)\ Go to **Play Store → Menu → Play Protect → Settings → Turn off “Scan apps with Play Protect”** 2. **Enable “Install from unknown sources”**\ On most Android versions: * Go to **Settings → Security → Install unknown apps** * Choose your browser or file manager * Toggle **“Allow from this source”** 3. **Download and install the APK file manually** from our official website. > ✅ Once installed, the Agent app works securely and does not harm your device.\ > ❗ Always download the APK from our official site to ensure authenticity. --- # 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://phoneparental.gitbook.io/support/help/common-questions-faqs/agent-app/installation/why-does-android-block-the-installation-of-the-agent-app.md?ask= ``` 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.