String Tension Meter
Tzu Yu Chou Sports iPhoneiPadiPod touch
String Tension Meter is a free Sports app for iPhone and iPad by Tzu Yu Chou. Requires iOS 13.0. Updated June 30, 2026.
- Price
- Free
- on the App Store
- Size
- 32 MB
- Age 4+
- Updated
- Jun 30
- 2026 · v1.0
Screenshots
About String Tension Meter
String Tension Meter helps tennis and badminton players measure racquet string tension quickly and accurately using only an iPhone. By analyzing string vibration through your device's microphone, the app provides instant tension readings in both lbs and kg without requiring any external hardware. It also includes advanced racquet management tools. Whether you're a competitive player, coach, stringer, or recreational athlete, String Tension Meter makes it easy to track racquet performance and know when it's time to restring. FEATURES • Measure string tension in seconds using your iPhone microphone • Instant racquet tension readings in lbs and kg • Supports both tennis and badminton racquets • Works with all common string materials and gauges • No external string meter or hardware required • Save and organize measurements by racquet profile • Track tension changes over time with measurement history • Store and manage multiple racquets and string setups • Archive previous string jobs and restore them anytime • Share tension measurement results with others HOW IT WORKS Select your sport and string information Hold the racquet near your iPhone Tap the string bed a few times The app analyzes vibration frequency Receive an instant string tension measurement RACQUET MANAGEMENT Keep detailed records of every racquet and string setup. Save reference tensions, monitor tension loss, review historical measurements, and compare performance across different string jobs. Everything stays organized in one place so you can make informed restringing decisions. PERFECT FOR • Tennis players • Badminton players • Racquet technicians and stringers • Coaches and academies • Competitive athletes tracking equipment performance String Tension Meter combines acoustic analysis, racquet management, and tension tracking in one easy-to-use app. Download today and take control of your string tension with a smarter way to measure and monitor racquet performance. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
App privacy
The developer, Tzu Yu Chou, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
- Usage Data: Advertising Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
Used for: App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Advertising Data, Product Interaction
Used for: Third-Party Advertising, Analytics
Alternatives to String Tension Meter
Looking for apps like String Tension Meter? Here are 6 similar apps on the App Store. The highest rated is String Tension AI: Tennis (5.0/5), and all 6 are free to download.
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StringTension
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String Tension AI: Tennis
5.0
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String Master - Tennis Log
5.0
-
RacquetTuner
1.0
-
Tension Lab: String Tension
-
mystrings - Tennis
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| String Tension Meter | – | Free | June 30, 2026 | |
| StringTension | – | Free | Apr 9, 2026 | Compare |
| String Tension AI: Tennis | 5.0 / 5 (3) | Free | Oct 10, 2026 | Compare |
| String Master - Tennis Log | 5.0 / 5 (7) | Free | Aug 8, 2026 | Compare |
| RacquetTuner | 1.0 / 5 (2) | Free | Nov 27, 2025 | Compare |
| Tension Lab: String Tension | – | Free | Oct 15, 2026 | Compare |
| mystrings - Tennis | – | Free | Mar 19, 2026 | Compare |