String Master - Tennis Log
Track Tension & Durability
About
Optimize your tennis game by precisely tracking string tension and durability. Record every restring, analyze string performance, and discover the best setups for your playstyle. Never guess about your strings again.
What's New in String Master
1.7.8
June 24, 2026
- 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.
MoreFAQ
What is String Master?
String Master is a free app designed for tennis players to meticulously track their string tension, durability, and overall equipment performance. It helps you log every restring, analyze string setups, and set reminders for string replacement.
How does String Master help with string life?
String Master allows you to set custom restring reminders at intervals like 14, 30, or 90 days. This ensures you are always aware of your string's lifespan and can replace them before they degrade, maintaining optimal playability.
Can I log custom strings in String Master?
Yes, String Master supports custom string input. If your specific string brand or model isn't in the database, you can manually enter it to ensure your logs are always accurate and comprehensive.
Does String Master support hybrid string setups?
Absolutely. String Master offers full support for hybrid configurations, allowing you to independently record different strings and tensions for both the mains and crosses of your racket.
What kind of string information can I find in String Master?
The app features a comprehensive string database that includes specifications like material, gauge, and stiffness. Additionally, its Smart String Finder helps you locate strings based on desired characteristics such as tension hold, spin, power, or comfort.
Is String Master available on Android?
Based on the provided data, String Master is currently supported on iPhone and iPod. Information regarding Android availability is not specified.
How often is String Master updated?
The latest version of String Master is 1.7.5, which was last updated on May 30, 2026. This indicates a recent update, suggesting the app is actively maintained.
What is the age rating for String Master?
String Master has an age rating of 4+, making it suitable for a wide range of users. The app focuses on sports tracking and does not contain content typically considered inappropriate for younger audiences.