TypingMind is a productivity tool that simplifies the process of using ChatGPT and supports GPT-4. With its user-friendly interface, users can easily access features such as chat history search, prompt library, and integrations. The tool can be run locally on a browser without the need for logging in, and users can use their own API key without any monthly fees.

ChatHub
"**ChatHub** is an application that allows users to use multiple chatbots, including ChatGPT, Bing, Bard, Claude, and others, all within one app1. If you need more specific information about its features or usage, feel free to ask."

FutureDesk

MacGPT

GPT Prompt Tuner

Prompt Apps

Promptmetheus

ChatGPT Prompt Plus

ChatABC

Prompta