Spelling out numbers

Change app theme color

Settings and about

Switching to light mode

Switching to scientific mode

Drag and drop to save result to memory

Change app icon

3D touch options on the bottom menu

Rounding off result using button on top right

Chat room and coachmark for slides

Long press any pin to bring up options. Save, Send, Hide and More

Coach mark for swiping right

Interactions in a course: drag and drop, reorder