Spelling out numbers

Onboarding describes some features

Switching to light mode

Drag and drop to save result to memory

Settings and about

Switching to scientific mode

3D touch options on the bottom menu

Rounding off result using button on top right

Change app theme color

If you hit close before completing, a prompt takes you to tutorials

Successfully paid

Relax, Focus, On the Go, Sleep modes

Coach mark at the bottom to swipe up to navigate