String Master vs Tennis Nut

Stop guessing, start tracking. String Master is the ultimate performance-tracking companion for tennis players who demand the best from their equipment. Whether you are a casual player or a competitive athlete, your string setup dictates your game. String Master helps you record, analyze, and discover the perfect string configurations tailored to your unique playing style. [Major New Updates & Premium Features] • Smart Recommendation Wizard & Normalized Engine Finding your next string is now effortless. Our 3-step recommendation wizard uses lab-tested data (stiffness, spin potential, tension loss, energy return) and scales them using min-max normalization to prescribe the perfect setup matching your game. • Dynamic Activity Calendar & Backdating Visualize your active string health on a color-coded calendar. Log past sessions, backfill older stringing jobs, and edit durations with instant, automatic health percentage recalculations. • Playability & Environmental Logging Go beyond time tracking. Log how your strings feel (Soft, Crisp, Stiff, or Dead Poly), track weather conditions (Sunny, Humid, Cloudy), and record temperatures to understand how environment impacts your tension. • Community Insights & Lifespan Rankings Access real-time community statistics and trends. View the top average string lifespan rankings based on thousands of hours of real player data. (Access is granted to active members with a minimum of 4 hours of logged play over the past 14 days.) • Advanced Racket Specifications Track customized parameters for every racket in your bag. Log weight (g), stiffness (ra), swing weight (kg/cm²), balance point (mm), serial numbers, and custom tuning notes (lead tape, grip details). • Smart Restring & Terminology Polish Log a new job in 3 seconds! Tap "Restring" to clone your previous setup (racket, string, tension). Terminology has been audited and standardized to "History" across 10 languages. • Social Authentication & Data Migration Log in instantly with Google or Apple Sign-In. Seamlessly migrate your entire guest mode racket and stringing history to your permanent account in one click. [Core Features] • Restring Reminders: Set custom notifications (90 days or health below 20%) to prevent arm strain and maintain peak playability. • Hybrid Setup Support: Independently log mains and crosses (different brands, gauges, and tensions). • 10-Language Expert Guides: Tap the info (i) icons to read explanations of string materials and metrics, fully localized in 10 languages (EN, KO, ES, JA, ZH, ZH_Hant, DE, FR, IT, PT).

Playing tennis isn’t just about breaking a sweat. It’s about building your tennis capital. Every practice session, every match, and every court you step onto becomes part of your Tennis Passport. Over time, your experience, records, connections, and places you’ve played come together to form an identity that is uniquely yours. Tennis Nut is built for one sport, and one sport only: tennis. We don’t put ten different sports into the same app, and we’re not here just to help you find your next match. Finding a court and someone to play with is only the beginning. Playing, keeping track of your journey, meeting more players, and getting expert guidance when you need it — that’s what a fulfilling tennis life is about. ■ YOUR TENNIS PASSPORT STARTS WITH YOUR FIRST BALL If you’re new to tennis, start with your very first time on court. If you’ve been playing for years, build out the courts, matches, tournaments, and gear that have shaped your tennis life. Your Passport grows with you. You don’t need to be the best — or become a professional player — to have a tennis identity worth keeping. When meeting someone new to play with, their Passport can help you understand their playing experience, level, match history, and background. Even before your first hit together, there’s more to go on than a vague label like “intermediate” or an NTRP rating alone. ■ BUILD YOUR MAP OF COURTS Every new court you play on becomes another part of your journey. A court isn’t just a pin on a map. It’s somewhere you’ve actually been, played, and made part of your tennis life. From the courts near home to another city — or even another country with a racquet in your bag — your Tennis Passport goes with you. ■ KEEP YOUR REAL MATCH HISTORY Record your matches and scores, along with tournament divisions, partners, results, and photos. Years later, you won’t just see a collection of numbers. You’ll see the journey, milestones, and memories of the player you’ve become. ■ COURT INFORMATION, BUILT BY PEOPLE WHO ACTUALLY PLAY Court surfaces, opening hours, current conditions, and whether people are playing there can all be contributed and updated by players who have actually visited the court. A report you leave today might be exactly what another player needs before heading out tomorrow. ■ WHEN YOU HAVE A QUESTION, ASK A REAL EXPERT Tennis technique, tennis-specific fitness, mental performance, and returning to play after injury — not every question has only one answer or belongs to only one field. Tennis Nut brings experts from different disciplines together around the same question. When needed, multiple perspectives can come together to provide more complete guidance. Professional knowledge shouldn’t be a barrier you have to get through before you start playing. It should be a resource you can reach when you actually need it. ■ NUTS: PLAY FOR REAL, EARN FOR REAL Log your practice, visit courts, update court information, and help other players to earn Nuts. Use your Nuts to get guidance from experts. You don’t have to subscribe to a library of content before you even know what you need. Play first. Run into a real problem. Then use what you’ve earned by participating in tennis to ask the question that actually matters to you. Play first. Learn when you need it. Whether today is your first match or your thousandth, you can keep building from the very next ball. Tennis Nut Your tennis life, connected.