If you want to use AI to boost your messaging app's productivity, WizAI is a top contender. It connects ChatGPT to WhatsApp and Instagram so you can chat with chatbots that respond to text messages in a conversational style. Features include voice commands, DALL-E 3 image generation and image analysis. WizAI offers a free plan with the first five messages and a premium plan for $2.99 per week with unlimited messages and other features.
Another good option is ConversAI, a personal AI chatbot assistant that uses natural language processing to help you get more out of online communication. It works in many languages and with a variety of chat apps, including Twitter, WhatsApp and Facebook Messenger. ConversAI features include one-click responses, automatic message summarization and tone detection. You can use it with a $19 per month unlimited subscription or a credits system, so it's a good option if you want to use it in your messaging app.