Saw this on kickstarter a month back and looked interesting so I thought I would pledge (think it was around £35).
Arrived today and so far, pretty good.
Used it on my MAC and Android phone (Samsung S8) and so far so good (as in it works
![Smile :)](./images/smilies/icon_smile.gif)
), but not had chance to compare it to not using it to see if it is doing anything!