Onboarding describes some features

Change app icon

Change app theme color

Settings and about

Drag and drop to save result to memory

Rounding off result using button on top right

Switching to light mode

Switching to scientific mode

3D touch options on the bottom menu

Onboarding checklist: Slices

Onboarding slides

Login with Foursquare, onboarding slides

Coachmarks to show overall navigation