RacquetTune - String Tension

To get it right, get a new string on your racquet and play with the value of the string factor until match the value tension of you new strings.. it works for me 👍

I restrung my racquet at 55#. This app said the tension was 40.2# right after I finished. I checked the string factor and ensured that I’d entered the correct values all the parameters (e.g. string pattern, racquet face size). I followed the measurement procedure to the letter. I could believe a couple lb. change but 15? Nyet. The racquet plays like 50-55. A Gamma String Tension Tester said the two center main strings were at 55# and the two center cross strings were at 39 and 40#. Why are other users getting numbers close to the tension at which they strung? Not even close for this app. Sorry

Don’t waste your money

It’s almost too good to be true. I get readings and I think, no, it must be wrong. It can’t be a mistake a made. Sure enough, I did something wrong. When I string exactly the same, I get the exact same output. This is an amazing app. It has helped me string better and learn more about how my string tension changes over time. Well done!!

I place the phone on a table, lay the racquet about an inch above it and use a wooden spatula to hit the strings. It has a delta of +/- 4-5 lbs and is hard for me to trust.

I have had this App for a week now and the results have been much better than expected! I use it to find out how much tension drops after each playing session.

Fantastic app. Incredibly useful to graph how the racket loses tension over time. Readings are very accurate. (note, if I’m stringing a poly, I can sometimes lose up to 10% by the time it’s off the stringer, then maybe another 10% over the next 48 hours) String factor accuracy is crucial, and the online database can be hit or miss, you’ll see lots of variation in there. You should measure this yourself to make sure it’s accurate, because it will greatly affect the reading. I use the weight method, and that’s worked out well for me so far.

It doesn’t give you consistent tension. It gives me different tension every time. Total garbage.

90% of the time I could no get the app to pick up a tension despite following the guides Racket strung at 47lbs confirmed on ERT tension tester machine. When I got racket tunes to pick up, it showed 58lbs. Used the correct string set up. At best this app might be able to tell you which of your rackets is strung a bit tighter. But that’s all. Just a gimmick. Wouldn’t waste your money

I'm using hybrid strings (VS Touch and RPM or Solinco Tourbite) with different tentions for mains and crosses and couldn't get a consistent display. Spend quite some time to try to get the string factor setup right with no luck.