the author of this app says:
With racquetTune you will always have the optimal tennis racquet to play with. A couple of taps on the strings and racquetTune uses the sound to calculate the tension with high accuracy. The interactive swingweight calculator is also a great aid when customizing your racquet.
You can check when it is time to restring or which one of your racquets that is best suited for different types of games. It is an invaluable tool when testing different racquets and strings. racquetTune also allows you to check whether your stringer does his job properly.
View a demo video at racquetTune.com
- Quickly determines the tension and stringbed stiffness of any racquet
- Can detect changes in tension as small as 0.1 kg
- Interactively switch between kg and lb while testing
- Accuracy indicator that ensures a consistent result.
- Oscilloscope to find the best way to tap the racquet
- Place as many weights as you wish on the frame.
- Move and change weights and directly see how it affects swingweight, balance and sweetspot location
"The app is very, very impressive. I get more tension diagnostic questions than just about anybody in the universe, so this is a very good thing to be able to recommend."
US Racquet Stringers Association
It is well made, works amazingly well, is child's play to use and is always with me and ready to use. Jay Cee, professional stringer
Needless to say, for 99 cents, this is really amazing stuff - Rabbit, Tennistalk
I agree with you - it's a fantastic measurement tool.- PimMyGame, Tennistalk
Congratulations. You got me to do something I swore I would never do: Pay for an iPhone App.- McLovin, Tennistalk
I think the app is really cool and useful. - flyer, Tennistalk
I tried the DT measuring and it worked really well! I have a Stringway Stringlab as well so i can compare on both. This thing rocks! - Hankenstein, Tennistalk
I strung a Volkl PB8 to 25 kg. And the result was 25 kg. So I can confirm that the application works perfectly! - Data, Tennistalk
It works perfectly! - Stefano, grandslamstringers
Quite effective.- Forum Admin, grandslamstringers
It gives almost exactly the same value every single time to the first decimal place the variation is as small as 0.1 lbs; over ten or so attempts. Cool - Ichiro, essentialtennis.com
Brilliant!! Does exactly what it says on the tin! No need for any calculations- just tap your strings. Wudipest, UK.
Thumbs Up Simply outstanding. This is very useful for regular players. Marco80
A great app to monitor string tension. It works flawlessly. I am a 5.0 player and I highly recommend this app to anyone who is serious about their racquet maintenance. Buy it!!!!! Saigon Jules, US
Great app when used properly Terrific app that works as advertised. JR4298, USA
Best app for serious tennis players I must say this app is very useful and from testing old strings and fresh from my machine it's very accurate a must buy!! Spade&heart, USA
Works great! I first read about this over on the Tennis Warehouse forums. And Yes, this app seems to be great! Ironicqueery, USA
Excellent! I am a professional stringer and I love racquetTune. Very easy to use, always with me, the results are spot on. Definitely worth it. Stefano P, USA
A super app for all players and stringers. Works very well. Martin Bergien, Germany
Great! A must for all tennis players. Tennismyran, Sweden
NOTE: The iPod Touch (2G and later) and the iPhone 2G must have an external microphone attached.
What's New in version 2.75
Minor updates and fixes:
- Bug fixed where racquet settings were not always saved
- Header info for hybrid strings fixed
- Oscilloscope now also shows discarded frequencies
- Improved error detection of frequency doubling
- Requires iOS 3.0 or later