Shello.ai is a keyboard app for iPhone and Mac that integrates GPT technology to make writing faster, easier, and more efficient. The app’s intuitive interface allows for easy switching of languages and access to a wide range of special characters and symbols. With Shello.ai, users can write anything from emails to essays or social media posts quickly and accurately. The app’s advanced GPT technology can complete sentences or phrases with the touch of a button, helping users save time and improve their writing skills.