RacquetTune - String Tension app icon

RacquetTune - String Tension

by Sten Kaiser

Trending downSentimenttrend not available
Appeye score 85 out of 100, from 144 reviews (moderate confidence)

144 reviews analysed · 21 Apr 2010 – 9 Jun 2026 · scored 21 Sep 2026

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Based on 144 reviews from 21 Apr 2010 - 9 Jun 2026.

Overview

Appeye score
85/100moderate confidence
Category rank
#167 of 1,379Sports
Reviews analysed
144Scored reviews from the App Store.
Sentiment trend
Trending downIts trend signals are moving in a negative direction.
App Store
4.5

58 ratings

Review sentiment

80
App nameRacquetTune - String Tension
SellerSten Kaiser
GenreSports
Version7.7
Content rating4+
Requires iOS12.0
Size11 MB
Released7 Apr 2010
Current version2 Apr 2026
View on App Store
App description

Listen to your racquet and perfect your game! RacquetTune ensures that your racquet is ideally suited to your style of play. Simple and straightforward to use, the app uses the sound generated by tapping the strings to calculate the tension with high accuracy. In addition, the interactive swingweight calculator aids in customizing your racquet to fit your own stroke pattern, while the stiffness calculator allows you to simulate different racquet configurations. RacquetTune not only makes it easier to decide when it is time to restring, it is also an invaluable tool when testing different racquets and strings and in identifying which of your racquets is best suited for different types of games. RacquetTune also allows you to check whether your stringer is consistent in his work. RacquetTune includes the following user-friendly tools: Tension measurement - Quickly determines the tension and stringbed stiffness. - Able to detect changes in tension as small as 0.1 kg/0.2 lb. - An accuracy indicator ensures results are consistent. - Graphical presentation of sound waves helps you find the ideal way of tapping the strings. - Settings can be customized to serve tennis, squash, racquetball and badminton racquets, respectively. - View the tension history for each racquet as a list or a graph. - Email a spreadsheet with test data. Swingweight calculator - Add as many weights as you wish to the frame. - Move and change weights to visualize how swingweight, balance and sweet spot location are affected. - Enter target values for the racquet and let RacquetTune distribute the weights automatically. Stiffness calculator - Simulate various racquet and string configurations - Vary tension, string type and racquet head size. - Shows load-displacement curves, stiffness and elastic energies - Handles the large deformations encountered in actual play View a demo video at racquettune.com RacquetTune has been featured in tennis magazines in USA, Italy, France, Germany,

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