gpt_mobile

Overview of gpt_mobile

What it is

GPT Mobile is an Android chat app that allows users to chat with multiple large language models (LLMs) simultaneously. It is a bring-your-own-API-key AI client, supporting OpenAI, Anthropic, Google, Groq, and Ollama. The app is built with Material3 and Jetpack Compose, and it stores chat history only locally, with credentials encrypted using Android Keystore. It is open-source under the GPL-3.0 license.

Key features

• Chat with multiple models at once using official APIs for OpenAI GPT, Anthropic Claude, Google Gemini, Groq, and Ollama.
• Customizable parameters including temperature, top p (nucleus sampling), and system prompt, plus support for custom API URLs and custom models.
• Optional agent tools per provider profile, including native tool calling, web search (Firecrawl, Perplexity, Exa) with hardened URL reading, and MCP Streamable HTTP servers with multiple authentication methods.
• Local chat history that is saved only on the device; credentials are encrypted and excluded from backup/export.
• Material You UI with dark mode and system dynamic theming without Activity restart, plus per-app language setting for Android 13+.
• 100% Kotlin, Jetpack Compose, Single Activity, modern app architecture.

Use cases

• Users who want to compare responses from different LLMs in a single conversation.
• Developers or power users who have their own API keys and need a client that supports multiple AI providers.
• Privacy-conscious users who want to keep chat history local and credentials encrypted.
• Users who want to experiment with agent tools and tool calling across different providers.

Getting started

See the repository README for download links from F-Droid, Google Play, and GitHub Releases. No quick-start installation commands are provided in the README.

License and pricing

Licensed under GPL-3.0. The app is open source and free of charge.

Based on the project's public README and repository metadata.