App Testing apps for Mac

App testing tools help developers check how their apps look and behave under simulated display conditions, such as a screen notch. They can help assess menu placement and capture screenshots of those layouts.

Icon of Notched Up

Notched Up

Developer Tools
Display notch simulator for testing app menu layouts, with support for multiple displays.
App Testing System customization
Icon of Key Codes

Key Codes

Developer Tools
A developer utility for inspecting key codes, Unicode values, and modifier key states.
Keyboard inspection