StringTension

Badminton & Tennis Tension

Only for iPhone

Free · In-App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Measure your racket string tension with just your phone! Tap the string bed and get instant tension data. Supports both badminton and tennis rackets. StringTension is a professional racket string tension measurement tool. It analyzes the sound frequency produced by tapping the string bed to estimate string tension. Supports both badminton and tennis, helping you track tension changes and find the optimal time to restring. CORE FEATURES - Tension Measurement — Tap the strings, get tension data in seconds - Tension Tracking — Record every measurement, observe tension decay over time - String Status — Visual indicators show string condition (Good / Monitor / Restring) - Restring Reminder — Smart reminders based on your detection history STRINGER TOOLBOX (Member Exclusive) - Stringing Verification — Compare "machine setting vs actual tension" right after stringing - Report Cards — Generate stringing reports to share with your clients - Client Management — Keep local records of client stringing history RACKET DATABASE - 100+ popular racket models (YONEX, Li-Ning, Victor, Wilson, HEAD, Babolat, etc.) - 50+ popular string models - Continuously updated SMART RECOMMENDATIONS - Personalized tension recommendations based on sport, play style, and racket specs - Tension guide for beginners to find their ideal string tension MULTILINGUAL Chinese, English, Japanese, Korean, German, French NOTE Measurement results are algorithmic estimates for reference only and cannot replace professional stringing machine readings. Use in a quiet environment for best results. Terms of Use: https://hk.hkhdtp.com/legal/stringtension-terms.html Privacy Policy: https://hk.hkhdtp.com/legal/stringtension-privacy.html

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The developer, Shenzhen Huopu Software Co., Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Provider
    • Shenzhen Huopu Software Co., Ltd.
    Size
    • 3.8 MB
    Category
    • Sports
    Compatibility
    Requires iOS 26.2 or later.
    • iPhone
      Requires iOS 26.2 or later.
    • Mac
      Requires macOS 26.2 or later and a Mac with Apple M1 chip or later.
    Languages
    English and 5 more
    • English, French, German, Japanese, Korean, Simplified Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    • StringTension Pro (Lifetime) S$ 17.98
    • StringTension Pro (Yearly) S$ 8.98
    • StringTension Pro (Monthly) S$ 0.98
    • Learn More
    Copyright
    • © 2026 HKHDTP
  • Privacy Policy

    • More by Shenzhen Huopu Software Co., Ltd.