Start Using AI on Your Phone
At home or out, you can talk with AI from one phone. For life use, the phone app is overwhelmingly more convenient than a PC. Here's how to install each AI's official app and reach the first chat.
3 Main Apps
| App | iPhone | Android | Price |
|---|---|---|---|
| ChatGPT | App Store | Google Play | Free; paid—check official |
| Claude | App Store | Google Play | Free; paid—check official |
| Gemini | In Google app | Built-in / dedicated app | Free; paid—check official |
Starting the ChatGPT App
- Search "ChatGPT" in App Store / Google Play (official is by OpenAI)
- After install, log in with Google / Apple / email
- SMS auth (Japanese mobile number)
