RacquetTuner

RacquetTuner

Measure Strings & Swingweight

2 ratings
2 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • November 27, 2025
  • November 27, 2025

Features

RacquetTuner screenshot #1 for iPhone
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RacquetTuner screenshot #8 for iPhone
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About

Instantly measure your racquet string tension using advanced audio analysis. Track tension loss over time, calculate swingweight, and optimize your racquet performance for tennis, badminton, squash, and racquetball.

Instant string tension measurement via audio analysis
Swingweight calculation and balance point optimization
Stiffness calculator for power vs. control analysis
Racquet profile storage and tension history tracking
Support for tennis, badminton, squash, and racquetball
Metric and imperial unit support
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What's New in RacquetTuner

1.0.2

November 27, 2025

Subscription plans

Premium Weekly

Weekly Premium

$1.997 Days
How to cancel RacquetTuner subscription ⁉️

User reviews

inaccurate and unusable

I tested the app on tennis rackets. The swingweight calculator is grossly inaccurate. On rackets with known SWs in the 315-320 range, the app returned values in excess of 1500! For the tension tool, the only way to get the app to register sound is it has to be very loud. Tapping the string bed is insufficient, but a hard hand clap is! The layout is solid and shows a well designed effort, but seriously lacking in performance. Yet another disappointing app.
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Microphone Sensitivity too low

Microphone won’t register anything unless you “pay for premium”. Useless

Developer apps

FAQ

How does RacquetTuner measure string tension?

RacquetTuner uses advanced audio analysis. By tapping your racquet strings, the app analyzes the sound frequency produced to calculate the tension with precision, detecting changes as small as 0.1 kg.

What sports does RacquetTuner support?

RacquetTuner supports tennis, badminton, squash, and racquetball. Each sport has a standard tension range that the app can measure and analyze.

Can RacquetTuner help me improve my game?

Yes, by accurately measuring string tension and tracking its loss over time, RacquetTuner helps you maintain consistent shot control, power, and comfort, allowing you to decide the optimal time to restring.

What is the Premium subscription for RacquetTuner?

The Premium subscription unlocks unlimited racquet profiles, all sport types, tension history graphs, the stiffness calculator, and CSV data export. It is available via weekly, monthly, or yearly plans.

How accurate are RacquetTuner's measurements?

RacquetTuner provides reliable relative measurements for tracking tension changes. For best results, tap consistently in the center of the string bed and ensure no dampeners are attached during measurement.

Does RacquetTuner have ads?

No, RacquetTuner does not contain advertisements. The app is free to download and use, with optional premium features available through a subscription.

What devices is RacquetTuner available on?

RacquetTuner is available for iPhone and iPad devices. It is designed for users who want to monitor their racquet performance on the go.

How do I cancel my RacquetTuner Premium subscription?

Subscriptions can be managed and canceled in your device's Account Settings. To avoid renewal charges, cancel at least 24 hours before the end of the current subscription period.