This app works GREAT!

It was picking up my serves in the low 100’s with no problems. I was looking for a way to work on my tennis serve and this app picks up about 85%-90% of my serves. I was using an iPad 4 on a stand placed at the intersection service line and the sideline. Personally I found this works best with the iPad at about a 15-20% angle and if you don’t serve it too wide…
Give this app a shot and you will NOT be disappointed. Great job Athla!

TT53 about Athla Velocity