This is not a standalone app. Glass Pack widgets require the KWGT PRO app (not the free version of this app).
- Custom launcher like Nova Launcher
- Download the Glass KWGT pack and KWGT PRO app
- Long press the home screen and select the widget
- Choose the KWGT widget
- Tap the widget and choose the installed Glass KWGT package.
- Choose the widget you like.
Required Android Versions : Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]