If you're looking for a GPT Hotline alternative, MobileGPT is a good choice. It's a built-in AI assistant for WhatsApp that taps into OpenAI's GPT3 Turbo and GPT4 language models. MobileGPT lets you have conversational AI interactions, translate languages, solve math problems, create content and generate high-quality images from prompts. It also can offer personalized lessons, image analysis and business document creation. For $149, you can get lifetime access with unlimited chats and features.
Another top contender is the AI Chat PowerBrain Assistant & AI Chatbot. This AI chatbot uses ChatGPT and GPT-4 technology to give you instant answers, automate processes and offer more sophisticated natural language processing. It supports multiple languages and comes with features like AI writer, chat history and AI chatbot translation. It's available on iOS, Android, web and desktop, so it's a good option if you want to use it on whatever device you have handy to improve your communication and get more done.
If you want a personal AI assistant that works on multiple devices, iChatWithGPT is a good option. It works on iPhone, Watch, MacBook and CarPlay with Siri, and offers features like web research, news summaries, text reminders and AI-generated imagery. With a free version that limits messaging and a Pro upgrade for unlimited messaging, iChatWithGPT can be a fixture in your life.