Racketeer vs StringSense

Your personal tennis learnings, right on your wrist. Racketeer uses advanced motion detection and machine learning to automatically track every stroke during your tennis sessions. **No phone needed on the court – just wear your Apple Watch on your dominant hand (the one holding racket).** REAL-TIME STROKE TRACKING • Automatic detection of forehands, backhands, and serves • Instant swing speed measurement in km/h • Topspin, flat, and slice classification • Haptic feedback confirms each stroke DETAILED SESSION ANALYTICS • Total stroke count with Forehand/Backhand breakdown • Session duration and heart rate tracking • Speed trends and stroke distribution • Syncs seamlessly to your iPhone DESIGNED FOR PLAYERS • Minimal, glanceable Watch interface • Battery-optimized dimmed display during play • Works in background – focus on your game • Saves workouts to Apple Health RACKET MANAGEMENT • Track multiple rackets and string setups • Associate sessions with specific equipment • Monitor string performance over time Whether you're drilling, rallying, or competing, Racketeer captures every swing so you can analyze and improve your game.

Dead strings cost you power, spin, and control — but most players have no idea when it's time to restring. StringSense tells you exactly when your strings are due, so you always play with confidence. What Makes StringSense Different Unlike simple timers or tone-based tools, StringSense uses a science-informed string health model. It factors in your string type, playing time, court surface, temperature, intensity, player level, and your racquet's specs to calculate a real-time health score for every racquet you own. True Hybrid Support Play with a hybrid setup? StringSense tracks your mains and crosses string types separately. The algorithm calculates wear based on the actual materials — so a poly/gut hybrid gets a different health score than a poly/multi hybrid. No more averaged guesswork. Your Racquet Counts String pattern and head size change how fast your strings wear. A dense 18×20 on a small head spares them (up to 15% more string life); an open 16×19 on a big head punishes them (up to 13% less). Log string pattern, head size, and weight per racquet, all optional — or pick your model from the built-in catalog (Babolat, Wilson, Head, Yonex, and more) and the specs fill in automatically. How It Works 1. Add your racquet and log your string job with string type and tension. 2. Record your play sessions — duration, surface, intensity, and conditions. 3. Watch your string health score update automatically after every session. 4. Get a clear signal when it's time for fresh strings. Smart Check After each session, StringSense asks how your strings felt: crisp, normal, or mushy. Over time it learns the health level at which your strings feel dead to YOU and tunes your restring recommendation to match — the more you check in, the sharper it gets. Reminders You don't have to keep checking. StringSense tells you when your strings reach your personal restring threshold — the one it learned from your Smart Checks. One wear reminder per stringing, scheduled for the morning and never at night — your device decides the exact moment. Free, switched on once after your first string job, and off again in the Workshop whenever you like. Until you've logged sessions it stays quiet — with no play time there is nothing to estimate. Rating & favorites How did the last stringing play? StringSense asks once when it comes off the racquet: stars, five traits, a private note. Setups you want again become favorites — on your next string job, strings, types, gauges and tensions are pre-filled. Knowledge Base & Glossary Five string type guides explain character and warning signs. Plus a glossary from string pattern to settling — free, right in the Workshop. Your Dashboard at a Glance See all your racquets in one place with live health indicators. Track your total play hours, average string health, and tension history with detailed graphs. Swipe through your racquets, tap for details, and stay on top of your equipment. Works Offline No Wi-Fi at the club? No problem. StringSense stores everything locally and syncs automatically when you're back online. Your data is always available, on or off the court. StringSense Pro The free version gives you core string tracking for one racquet — no time limit. When you're ready for more: • Unlimited racquets • Detailed tension graphs • Data export (CSV & JSON) • Time reminder after 3, 6, 9 or 12 months, with a head start • Per-racquet reminder control • Support ongoing development Privacy First Your data belongs to you. StringSense shows no ads and never sells your data — your racquet and session data is stored securely in your personal account and never shared. Whether you're a club player who strings every few months, a tournament competitor who restrings weekly, or a weekend warrior who just wants to know when it's time — StringSense keeps your equipment in peak condition. Download StringSense and never play on dead strings again.