InStatDownloadButton
March 15, 2019 • MIT License
UIButton with start, stop, pending, downloading and finish states
AHDownloadButton
September 27, 2018 • MIT License
Customizable download button with progress and transition animations. It is based on Apple's App Store download button.
NFDownloadButton
June 01, 2017 • MIT License
Revamped Download Button. It's kinda a reverse engineering of Netflix's app download button.
DownloadButton
June 25, 2015 • Apache 2.0 License
Customizable App Store style download button. Customizable designable components. Editing with IB.
https://itunes.apple.com/us/app/hito-vue/id1024853613?mt=8