String GOAT - for tennis

Tennis string management app

Only for iPhone

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

iPhone

New users get 7 days of Premium free. AI string recommendations, tension analysis, and unlimited rackets — no credit card. Track, rate, and optimize every string. String GOAT is the all-in-one tennis string tracker designed for players who want to get the most out of every restring. Log your racket and string setup, rate string performance across 6 categories with radar charts, analyze your tension history, and get AI-powered string recommendations — all in one app. KEY FEATURES ■ String & Racket Management • Log detailed racket specs: brand, model, head size, weight, grip size, stiffness (RA) • Record string setup: brand, model, type, shape, tension, diameter • Support for hybrid stringing (separate mains & crosses) • Track up to unlimited rackets with Pro ■ Performance Feedback • Rate 6 key areas: Power, Spin, Control, Comfort, Feel, Durability • Visualize ratings with interactive radar charts • Add detailed comments for each category • Share feedback as images on social media ■ Statistics & Charts • Tension history graph (mains vs. crosses over time) • String type distribution chart • Filter by racket for focused analysis ■ AI String Lab • Get AI-powered string recommendations based on your recorded data and feedback • Tension advisor tailored to your stringing history • AI Chat for personalized stringing advice ■ Home Screen Widget • Check your current string status at a glance • See days since last restring and average rating • Quick access to add new records ■ Cloud Sync & Backup • Sync data across multiple devices • Cloud backup and restore • Export your records to Excel ■ 13 Languages Supported English, Korean, Japanese, Chinese (Traditional & Simplified), German, Spanish, French, Italian, Portuguese, Turkish, Hindi, Indonesian SUBSCRIPTION PLANS • Free: 1 racket, unlimited string records, 10 AI recommendations/month • Pro: Unlimited rackets, cloud sync, backup/restore, Excel export, 500 AI recommendations/month • Premium: Everything in Pro + 3,000 AI recommendations/month Subscriptions are billed monthly or yearly. Payment is charged to your iTunes account. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

• SNS Share Card launch — share racket, string, ratings, and memo as a single card to Instagram and more (1:1, 4:5 feed, 9:16 Reels/Stories ratios) • Caption sheet with memo include/exclude toggle — preview and copy in one tap • Memo length guard + auto image dimming — improved card readability • What's New dialog on first launch + share button coach mark • Fixed: attached images disappeared after sign-out and re-sign-in (images stay local, never uploaded)

Version 1.1.18

The developer, YOSEOP YOON, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Contact Info
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • YOSEOP YOON
Size
  • 91.3 MB
Category
  • Sports
Compatibility
Requires iOS 16.1 or later.
  • iPhone
    Requires iOS 16.1 or later.
  • Mac
    Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
  • Premium Monthly $9.99
  • Pro Monthly $4.99
  • Pro Yearly $41.99
  • Premium Yearly $83.99
  • Learn More
Copyright
  • © 2022 Yoseop Yoon.
  • Privacy Policy
  • License Agreement

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