Google Gemini is Google's AI assistant that is accessible in multiple ways:

• It can be accessed via the Gemini web app at gemini.google.com where users can sign in with a Google Account to use features like writing, planning, and brainstorming help.
• Gemini has a mobile app available on both Android and iOS devices, where it can replace Google Assistant as the default assistant on Android and is available for iPhone and iPad users via the App Store.
• Gemini is integrated into the Chrome browser on desktop as "Gemini in Chrome," providing AI assistance directly in the browser without needing to switch tabs, currently available to Google AI Pro and Ultra subscribers in the US.
• It is also integrated into various Google services and products like Google Workspace apps (Gmail, Docs, Meet), and Google AI Pro plans provide enhanced access.

Thus, Gemini is available as a web app, a mobile app, and integrated into browsers and Google services, making it widely accessible across Android devices, iPhones, desktop browsers, and Google apps.