https://www.animaapp.com/
https://avocode.com/
http://createwithflow.com/
https://www.behance.net/gallery/61798721/H1-Free-Mobile-UI-Kit-for-Sketch-Photoshop
https://usecontrast.com/
http://sketch.land/
https://dribbble.com/shots/3383791-Gradients-Sketch-Freebie
https://lstore.graphics/freebies/white/
https://tinyfac.es/
