Kai Tennis vs StringPing

Stop wasting time fiddling with height, speed, and spin knobs every time you practice. With Kai, just choose the skill you want to improve, set your level, and start your session right from your phone. Kai instantly transforms your ball machine into a smarter training partner — delivering realistic rally simulations, live-play patterns, and advanced drills designed to sharpen your game faster than ever. *** Kai requires a Kai Module to control ball machines -- coming soon!!! *** KEY FEATURES: • Control from your phone or watch Connect Kai to a supported ball machine; then start, pause, or switch drills from anywhere on the court. • Simulate real play Go beyond static feeds — practice rallies, approach shots, footwork patterns, and complex shot sequences designed by pros. • Regularly updated drill library Access an ever-growing library of drills to keep your practice fresh and challenging. • Create your own custom drills Design personalized drills to match your practice goals or favorite rally patterns — simulate any drill you can imagine. • 3D drill visualization See drills come to life with clear animations that show exactly where each shot will land and how to move for it. • Works with Playmate® iGenie and iSmash ball machines Kai adds modern control and intelligence to these trusted machines, so you can bring your club’s machine to life with cutting-edge features. With Kai, every practice session becomes smarter, more efficient, and more fun. No more guessing — just targeted training that helps you improve faster. Download now and start making every ball count!

StringPing turns the sound of your strings into a tension reading. Tap the center of your string bed with the heel of your palm and StringPing listens to the "ping," measures its pitch, and estimates your string tension in seconds — no gauge, no trip to the stringer. Strings lose tension the moment they're installed and keep dropping with every hit. StringPing helps you feel it before your game tells you: track each racquet over time and watch the tension-loss curve so you know exactly when it's time to restring. HOW IT WORKS • Pick your racquet, string, and pattern (or scan with sensible defaults) • Tap the string bed a few times • StringPing captures each tap, filters out noise and outliers, and averages the readings for a confident result • Save it to build a history for that racquet TRACK EVERY RACQUET Keep a library of your frames with their string setup and last-measured date • See a tension-over-time chart for each racquet • Review a full scan log with the drop between each reading • Know how many weeks a string bed has been in play BUILT FOR THE COURT Fast, on-device analysis — your audio never leaves your phone • Works across common racquet head sizes and string patterns • Clear confidence indicator so you know when a reading is solid • Pounds or kilograms A NOTE ON ACCURACY StringPing is an acoustic estimate, not a stringing machine. It shines at tracking relative change over time on the same racquet and string — the best way to catch a string bed going dead.