Switch God's Review of RacquettuneReviewed on 10/27/17 11:43 PM
To date there is not an accurate device to measure string tension once the frame is off the machine. This app is closest thing to a real solution. Based on good science this will give excellent data on RELATIVE tension. Meaning you can now track tension loss over time as well as compare the sticks in your bag before you step on the court. The one caveat is that it does not come close to calculating absolute tension. I obtained wildly different tension numbers compared to "at time of stringing" tension. As much as 10-15 pounds off. But for measuring changes over time this app is the best thing out there!