Notch.one - The only notch for your devices
Facebook Design - Devices - Images and Sketch files of popular devices.
TouchDesigner - TouchDesigner is a visual development platform that equips you with the tools you need to create stunning realtime projects and rich user experiences.
Smartmockups - Create stunning product mockups, easily and online.
SignalScope X - Powerful tools for acoustics and audio on iOS
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.