I used part of the "Laundry App UI Kit Sketch Resource" design that was designed by Satheesh Kumar at: https://www.sketchappsources.com/free-source/3397-laundry-app-ui-kit-sketch-freebie-resource.html to create a quick prototype

3 different counters using variables 1. A standard counter 2. A counter from the number of seconds the user sets 3. A countdown

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

Form validation using variables and states

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

Netflix Desktop UI Sketch Resource Design: https://www.sketchappsources.com/free-source/3590-netflix-desktop-ui-sketch-freebie-resource.html

Using variables to change the opacity of items Design Downloaded from: https://www.sketchappsources.com/free-source/2567-chandelier-lighting-illustration-sketch-freebie-resource.html

Coronavirus COVID-19 Global Cases by Johns Hopkins CSSE - Mobile Version Using an embed map from https://www.arcgis.com/

variables, scrollable containers, container states Avatar style design Credits: https://www.sketchappsources.com/free-source/4458-memoji-icons-sketch-freebie-resource.html

Fashion Shop App UI This UI set includes 5 screens: Splash, Sign up, Login, Home and Product Details Design Credits: https://www.sketchappsources.com/free-source/3663-hi-fashion-shop-ui-sketch-freebie-resource.html