Basic To Do prototype based on: https://www.sketchappsources.com/free-source/3625-basic-to-do-app-design-sketch-freebie-resource.html

Going to a screen depending on a picker selection using states, variables and the 'Fire an items event' action

Scrollable Landing Page Design from: https://www.sketchappsources.com/free-source/1975-key-t-one-page-website-template-sketch-freebie-resource.html Top Menu and Side Slider changes (State) depending on the scroll position with the use of variables

Form validation using variables and states

Here is an example of a scrollable data table with vertical and horizontal scroll and a fixed header. Data design: https://www.sketchappsources.com/free-source/3706-datatable-with-horizontal-scroll-sketch-freebie-resource.html

An endangered species is a type of organism that is threatened by extinction. Species become endangered for two main reasons: loss of habitat and loss of genetic variation.

An example of a pricing screen imported from https://www.sketchappsources.com/free-source/3749-pages-ui-web-kit-update-2019-sketch-freebie-resource.html