Simple Chat Hub is a versatile browser extension designed to aggregate various mainstream AI chat platforms, enabling users to engage in simultaneous chats. Its intuitive interface allows for one-click messaging and quick switching between chat windows, making it a powerful tool for both personal and professional communication. This extension is perfect for those wanting to leverage multiple AI chat functionalities without the hassle of switching between different applications.

3sparks Chat allows you to connect with local models like LM Studio and Ollama on Mac, PC, or Linux, as well as cloud-based APIs like OpenAI and Mistral. It features an AI Keyboard Extension allowing you to refine messages instantly over iMessage, WhatsApp, and other apps. The platform emphasizes customizable keyboard prompts, personalized AI chat instructions, and full data control without forced cloud dependency, thereby providing a seamless and integrated experience across all your Apple devices.