Install and update

Requirements#

• Android 8.0 (API 26) or newer. The app targets Android 17 (API 37).
• About 200 MB free space for the app itself. Offline models (0.3 to 2.6 GB) and Linux workspaces need more.
• Internet for CX AI, web search and integrations. Offline models work without it.

Camera, GPS, microphone, fingerprint, Wi-Fi and telephony hardware are all optional: the app installs on phones without them and simply hides what cannot work.

Installing#

1. Download the APK from cxagent.pages.dev (Download page).
2. Open it and allow "Install unknown apps" for your browser or file manager when Android asks.
3. Open CX Agent. You see the welcome screens, the terms, and then the chat.

First launch#

The onboarding flow shows a few cards: what CX does, the AI browser, CX PDF and Share-to-CX, skills, privacy ("your chats stay yours"), a request for notification permission ("Know when CX is done") and the choice How should CX think?:

• CX AI: ready right now, free, no key. Picks the best model for each message.
• My own API key: Claude, Gemini, Groq, any OpenAI-compatible API, or sign in with ChatGPT. Providers opens after setup.

You can change this any time in Settings → AI models → Providers.

Updates#

CX Agent checks for new versions itself (unless it was installed from Google Play, where self-update is turned off by policy).

• When a newer version exists you see Update / Later. Update downloads the APK with Android's DownloadManager and shows progress; Android then asks you to install it. Your chats and data stay.
• The CX team can mark a version as required. Then a full-screen Update required page appears with Update now and I already updated — check again.
• During maintenance a Under maintenance screen may appear with a retry button.
• CX Updates (drawer) lists posts, new skills and new orbits published by the team, without reinstalling.