Wow! I would really like to be a miner, seems promising.
Units:
iPhone 6
iOS 11
Safari, Firefox, Google Chrome
iPad 4
iOS 10
Safari, Firefox, Google Chrome
*edit
Throwing in the following unit as well:
MacBook Pro
i7 2,4 GHz
8 GB RAM
Intel HD Graphics 3000 512 MB
OS X 10.11.5
Safari, Chrome, Firefox