If you have a newer iPhone (running iOS 18.1 or later), you can use Apple Intelligence Writing Tools to help draft and refine essays directly within any text field.
While there isn't a single "essay widget" built directly into the iPhone, you can essentially create one using either Apple's built-in or third-party AI writing apps that offer widget functionality. The Modern Approach: Apple Intelligence widget iphone
: Copy your essay into the Apple Notes app. Long-press your Home Screen, tap the + icon, and select the Notes widget . Choose the specific note containing your essay to have it visible at all times. If you have a newer iPhone (running iOS 18