Best opchat alternatives: apps like opchat: Private On-Device AI

Oriveo: Multi-Model AI Chat

No API key, no sign-up needed

Free

Access multiple AI models, including GPT, Claude, and Gemini, within a single application. Start chatting instantly for free without needing an API key or sign-up. Save notes, get second opinions on answers, and manage your AI usage.

Airgap: Private AI Chat

Your LLMs, local or cloud

Free

This app allows you to run AI models directly on your device or connect to your own model servers. It offers a private and direct way to interact with AI, with no account or middleman required. Supports on-device models and various OpenAI-compatible endpoints.

Multi Chats - AI Chatbot

GPT, Claude & more, in one app

Free

Access multiple leading AI models like GPT, Claude, and Gemini in a single, streamlined app. Switch between models mid-conversation, generate images, and analyze documents with a unified subscription.

muxd AI Agent

AI agent for all your machines

Free

Control and interact with your AI agent running on any of your machines from your mobile device. Chat, analyze images, manage multiple nodes, and resume sessions seamlessly. It supports any AI model and provider, offering a private, open-source solution.

nilGPT - Private AI

Private AI chat

Free

This AI chat companion prioritizes your privacy with end-to-end encryption and secure hardware enclaves. It offers various modes like wellness and personal assistance, providing a confidential space for your thoughts and concerns.

Aura – AI Assistant

Smarter from every angle

Free

This app unifies multiple leading AI models into a single interface, offering advanced automation and privacy features. It allows users to perform complex tasks, interact with over 950 apps, and generate content through voice commands, all while protecting personal data.