Only mobile app I found that allows you to record location of shots. Works well and gets the job done. Expensive compared to other apps, but it only amounts to the cost of a single tennis lesson, which seems fair given the value of the data this app can gather.
A few minor quips. Could improve on workflow when matches get screwed up (e.g. Serving from wrong side of court after sets, scoring mistakes). Feel like I am fighting with the app once things go awry with the match and usually give up once this happens.
Cant seem to edit match data once it is started (e.g. Player names, tournament info, court surface).
Comments display strangely in momentum chart. Hard to read them once a few are entered.
Graphics in app could be improved.
JukiDog about ProTracker Tennis, v3.0