RNDR - Boxing Round Timer AI

Whether you're shadowboxing at home, working the heavy bag, or grinding through fight camp, RNDR turns your phone into a real boxing corner — calling out combinations live, running your rounds, and breaking down every session so you actually improve, not just sweat. WHY BOXERS TRAIN WITH RNDR REAL-TIME AI COMBO CALLOUTS No more guessing what to throw. RNDR's coach calls out boxing combinations live, mid-round — jab-cross-hook, slip-and-counter, feints, defense, footwork — matched to your skill level (Beginner, Intermediate, Advanced) so every round pushes you at the right pace. It sounds like a real corner in your ear, not a beep timer. FULLY CUSTOM ROUNDS Set your own round count, round length, rest length, and callout frequency — per round, not just per workout. Choose Power, Speed, Technical, or Burnout intensity modes to change the rhythm of your combos and hold-move drills. DRILL-BASED TRAINING Structure rounds around shadowboxing, bagwork, padwork, jump rope, roadwork, or speed bag. RNDR adapts its callouts and coaching automatically to whatever drill you're running, so you never get combo callouts during your roadwork. BUILD YOUR OWN COMBINATIONS Create and save custom combos, or pull from a full built-in library ranging from beginner fundamentals to advanced combinations. Load ready-made presets built for specific training goals, or build a session from scratch. FIGHT CAMP — STRUCTURED TRAINING BLOCKS Training toward a fight or an event? Set up a Fight Camp: a structured, multi-week plan that builds toward your fight date and tracks your progress week over week, so you know you're peaking on time. CORNER AI — YOUR PERSONAL AI BOXING COACH This is where RNDR goes further than any round timer app. Corner AI is a built-in AI coach you can talk to — by voice or by typing — for training questions and advice based on YOUR own training history, not generic fitness tips. Corner AI knows your weight class, stance, skill level, and recent sessions, and generates AI insights after every workout, every week, and every month, so you always know what to work on next. SERIOUS TRAINING ANALYTICS Track total rounds, combos thrown, training volume over time, most-thrown punches and combinations, personal records, and a full training style breakdown — solo punches vs. combinations, intensity distribution, output trends week over week. This isn't a step counter; it's real boxing data. RECORD & REVIEW YOUR SESSIONS Record your rounds on camera, saved straight to your device, so you can review your form and technique after training — not just trust your memory. NEVER MISS A SESSION Set recurring training reminders so your boxing schedule actually sticks, synced across your devices. TRAIN WITH THE SCREEN OFF RNDR keeps calling combos and tracking your rounds even when your phone is locked or in your pocket — you don't need to stare at a screen to get coached through a round. BUILT FOR EVERY LEVEL Whether you're throwing your first jab or deep into fight camp, RNDR adjusts combo complexity, callout frequency, and coaching style to your level — set once during onboarding, refined every time you train. YOUR BOXER PROFILE Set your stance, weight class, height, reach, and skill level once. RNDR uses it everywhere — which combos get called, what Corner AI recommends, how your analytics get benchmarked. FREE TO START RNDR's core training experience — round timers, AI combo callouts, combo building, and workout history — is free. Upgrade to Pro or Elite for advanced analytics, expanded Corner AI insights, Fight Camp, session recording, and recurring reminders. Boxing rewards repetition, feedback, and correction — and that's exactly what RNDR gives you: an AI corner that never gets tired, coaching that's always in your ear, and the data to prove you're actually getting better, round after round. Lace up. Let RNDR call it.