I've had this app for almost a year and it's been working perfectly. My LG G2 just recently updated to Lollipop 5.0.2 and it stopped working. I emailed the developers with my issues and they responded within the same day. Excellent customer service! I got it back to work just fine. If you run into any problems, let them know immediately and they will help you fix it.
Klink - Tether at Google Play market analyse