AppCorpus
Market US

String Master - Tennis Log

by ORYONG KIM

iPhone

Active Last checked 5 Aug 2026

Quick verdict

What it is
Store information collected; independent summary not yet available.
At a glance
  • Free to download

Categories and search queries

Official categories

AppCorpus categories

Key functions

Function Availability Access Scope Evidence
Free app Yes Free Store published

Screens

App Store

10 store screenshots

String Master - Tennis Log iphone screenshot 1
String Master - Tennis Log iphone screenshot 2
String Master - Tennis Log iphone screenshot 3
String Master - Tennis Log iphone screenshot 4

Pricing & paywalls

App Store

  • Free

Ratings & reviews

App Store

5.0 7 ratings · App Store

No store reviews collected for App Store · US

Privacy & accessibility

App Store

Privacy

  • Data Not Linked to You — App Functionality — Identifiers — Device ID Developer declared
  • Data Not Linked to You — App Functionality — Identifiers — User ID Developer declared
  • Data Not Linked to You — App Functionality — User Content — Other User Content Developer declared
  • Data Not Linked to You — Identifiers Developer declared
  • Data Not Linked to You — User Content Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

  • 1.1.0

    Tennis Ball Emoji: Updated the racket icon to a tennis ball for better vibes! Improved Racket Management: Now you can edit both the Nickname and Model Name of your rackets. Profile Update: Easier access to edit your profile settings. Fixed minor bugs and improved performance.

  • 1.1.1

    Racket Management Update! • Manage Rackets: You can now add, edit, and delete your rackets more easily. • Add Button: Quickly register new equipment with the new '+' button. • Roadmap Update: We've outlined exciting Pro features coming soon (Watch app, Analytics)! Small fixes and improvements included. Enjoy your game!

  • 1.1.2

    v1.1.3 Update: Smart Notifications & Enhanced Stability • Push Notifications: Get alerts when your strings need restringing to maintain peak performance • Restring Reminders: Receive timely notifications every 3 months to keep your rackets in top condition • String Health Tracking: Monitor your string durability with real-time health percentage • Bug Fixes & Improvements: Improved app stability and performance across iOS

  • 1.1.4

    Big Update! You can now create an account to save your data permanently. • Email Sign-up & Login: Secure your string logs and racket setups in the cloud. • Guest Account Linking: Already using the app? Easily convert your Guest account to a Full account without losing any history. • Password Reset: Added support for password recovery. • Bug fixes and performance improvements.

  • 1.2.0

    [Ver 1.2.0] Login, Units, and Precision! Verification Codes (OTP): We’ve replaced email links with 6-digit codes. Sign up and log in instantly without leaving the app. Kg / Lbs Support: You can now toggle your preferred unit in Profile settings. Track your jobs in Kilograms (kg) or Pounds (lbs). Precision Input: Added text fields for tension. You can now type exact numbers (e.g., 23.5 kg) alongside the sliders. Improvements: Fixed email verification issues for a smoother experience.

  • 1.2.1

    [Ver 1.2.1 Update] Smart Restring: Log your jobs in seconds! Simply tap "Restring" on the Home screen to duplicate your previous setup. Skip the search and finish in just 3 seconds! Custom String Input: Can't find your string in the list? You can now manually enter any string brand or model using the new 'Custom Input' feature. Flexible Reminders: We've added more reminder intervals. You can now set precise restring alerts for 2 weeks, 1 month, 3 months, and more. Improvements: Enhanced Guest Mode usability and general app stability improvements.

  • 1.3.1

    Sign-up Fixed: Squashed the email sign-up error. 1-Sec Social Login: Skip typing! Log in instantly with Google/Apple. Auto Data Merge: Guest logs automatically save to your new account. Notifications: Manage restring reminders in your Profile. In-App Reviews: Easily leave a rating right inside the app! Stability: Smoother logins & data transfers.

  • 1.4.0

    string master version 1.4.0 major features smart routine logging: set your usual schedule once and log your session with a single tap from your lock screen. it is the fastest way to track your play. global expansion: added support for german, french, and italian. we now support 8 languages. advanced hybrid search: find strings faster by typing brand and model (like "head synthetic") with our new multi-word filtering logic. bug fixes and improvements enhanced routine sync: your routines and notifications now stay perfectly in sync across all your devices. consistent string naming: enjoyed a unified "brand + model" display across all screens for better readability. math logic fix: corrected an error where custom strings were penalized with a 20% tension loss by default. ui polish: fixed the "null" text rendering bug in the racket details screen.

  • 1.4.1

    [Global Expansion & UX Improvements] Added Portuguese support (10 languages total). Racket Spec Notes: Track custom tuning details like weight and balance. Smart Tension: Independent main/cross inputs for full bed setups. Nickname Priority: Racket nicknames are now prioritized on the home screen. Rate Us & Feedback: Send feedback directly from your profile settings. Fixed language fallback bugs and restring data issues.

  • 1.4.2

    [New] Manual language selection in Settings (10 languages). [New] Dynamic date formatting for a localized experience. [Fixed] Dashboard now refreshes instantly after logging a job. [Fixed] Hybrid detection bug & bottom nav translation sync. [Compliance] Added TWU data attribution & legal disclaimers. [UI] Added character limits for racket names.

  • 1.5.0

    Added Calendar view to visualize tennis activity with color-coded string status. Introduced chip-based racket filtering for playtime history. Enabled past string job backfilling and smart playtime backdating. Real-time health recalculation when editing, switching, or deleting logs. String gauge and mm override for precise gear personalization. Forced racket selection logic for multi-active string setups. Added calendar date restrictions for data consistency.

  • 1.6.0

    - advanced finder: filter by material, gauge, and tension. use smart sorting or find similar alternatives. - sensory logging: record feel (soft, crisp, stiff) plus weather and temperature context. - custom lifespan: set manual hour limits per racket for accurate health warnings. - visual history: intuitive icons in calendar and list views for better tracking. - data sync: fixed notification mapping and real-time health dashboard updates.

  • 1.6.1

    real-time health refresh: fixed the sync bug where string health didn't update immediately after logging play sessions. now it’s instant! tension sync fix: resolved an issue where the dashboard tension display didn't match your actual logs. snappy ui: improved the responsiveness of the "edit details" page. no more multiple taps needed to get where you want to go. racquet management polish: refined the data sync logic for your racquet list and restring history to keep everything rock-solid.

  • 1.6.2

    v1.6.2 stability & precision update: - fixed numerical lbs/kgs unit conversion bug for accurate tracking. - streamlined onboarding with auto-skip and data pre-fill for returning users. - added logout confirmation to prevent accidental data loss. - restored mandatory terms of service consent check. - optimized temperature toggle and improved overall system responsiveness.

  • 1.6.5

    v1.6.5 pro gear and dashboard polish: added custom drag and drop reordering for active cards on the home screen. supports advanced racquet specs including weight, stiffness, and swing weight. fixed text overflow and redesigned history icons for better visibility. improved finder filter initialization and data accuracy for string performance specs.

  • 1.6.6

    v1.6.6 brand catalog and navigation stability: implemented a comprehensive racquet brand catalog for consistent gear management. fully resolved a critical navigation bug where logging from the string search screen failed to properly route back to the form. improved data injection and context handling to ensure seamless tracking and rock-solid stability.

  • 1.6.7

    v1.6.7 emergency ui hotfix: fixed a critical layout bug where dashboard buttons were clipped on certain screens or with large text scaling. the card now dynamically adjusts its height to ensure all buttons are fully visible and clickable. optimized the user interface for better accessibility and overall system reliability.

  • 1.6.8

    v1.6.8 critical ui and stability update: fixed a major layout bug where dashboard action buttons were clipped on certain screen sizes or with high text scaling. the interface now dynamically adjusts to ensure all elements remain fully visible and clickable. improved overall system reliability and data presentation to keep your gear tracking rock-solid.

  • 1.7.0

    - native community insights: view real-time global statistics including total community playtime and trending string rankings directly on your dashboard. - educational tooltips: learn the science behind your gear with built-in guides on dead poly, tension loss, and stiffness. - smart push notifications: never miss a restring reminder or critical update with our new server-side alert engine. - seamless onboarding: improved first-time user experience with intuitive guides and standardized terminology. - resolved a bug preventing users from adding their very first playtime log via the calendar view.

  • 1.7.1

    - security hardening: we’ve overhauled our backend row-level security (rls) and database encryption protocols. your racket and string logs are now guarded by the latest industry standards. - fcm security audit: we’ve tightened the security on our push notification engine. your restring reminders are now delivered through an even more secure, encrypted channel. - stability patch: fixed a few minor under-the-hood bugs related to data synchronization.

  • 1.7.5

    Enhanced String Finder Wizard: Discover your perfect string through a professional 3-step recommendation flow. Database Precision Update: Technical specifications updated for 24 key models including Restring, Toroline, and Tru Pro for superior accuracy. Expert Knowledge System: Educational guides on string materials and performance metrics are now available in 10 languages. Normalized Comparison Engine: Re-engineered recommendation logic using standardized data for fairer string comparisons. General performance improvements and bug fixes.

  • 1.7.6

    - Fixed a startup freeze on the splash screen to ensure smoother loading. - Enhanced timezone safety for datepicker inputs to prevent UTC date shifting. - Resolved database issues when deleting rackets and job history records. - Prevented unexpected crashes by applying defensive log sorting. - Overall stability improvements and minor bug fixes.

  • 1.7.7

    - updated the string database with 38 new string models and 58 detailed specifications for maximum recommendation accuracy - fixed quick search bugs so you can manually enter your custom string name without errors - added a search confirmation dialog when selecting custom strings to keep your search query intact if you cancel - improved custom string parsing and overall data stability for a crash-free experience - refined localized prompts across 10 languages to make logging even more intuitive

  • 1.7.8

    - fixed startup crashes on sideloaded or restored devices. - resolved route parsing RangeErrors during OS background process recovery. - improved session refresh and authentication stability. - upgraded CI/CD workflows for better build pipeline reliability.

  • 1.7.9 · 19 Jul 2026

    - unlocked permanent free access to real-time community string stats & rankings with just 1 sns share - added in-app custom social panel with direct sharing to instagram stories, facebook, and x (twitter) - upgraded promo cards with localized store search ctas & direct market qr codes across 10 languages - optimized app stability & os package visibility safeguards for smooth performance

Availability by market

Data quality & evidence

Page completeness
Live store listing
Last verified
5 Aug 2026
Sources
App Store

Report a correction