When you use Gemini Apps, Google collects information about your device and your approximate location. This may include IP address, device identifiers, browser type, and coarse location data derived from your network connection. This data is used to provide and improve the Gemini service.
Passive technical data collection — including device identifiers and location — combined with conversation content creates a rich behavioral profile that extends beyond what users typically associate with an AI chat service.
Every conversation you have with Google Gemini is stored by Google for up to 18 months by default and may be read by human reviewers for safety and quality purposes, meaning sensitive personal information shared in chats could be accessed by Google employees. Your Gemini conversation data may also be used to train and improve Google's AI models unless you opt out, creating a persistent data footprint that extends well beyond the immediate session. You can turn off Gemini Apps Activity at myactivity.google.com to stop future conversations from being saved, and you can delete past conversations from your Gemini activity history on that same page.