Fartlek Interval Trainer vs Loadwave

Build the interval workout you want. Stay on target while you train. Then learn from every session. FiT is an interval timer and training companion for runners on Apple Watch and iPhone. Create classic intervals, HIIT and Tabata workouts—or run freely with automatic Fartlek interval detection. CREATE WORKOUTS YOUR WAY Build simple work-and-rest sessions or advanced workouts with warm-ups, cooldowns, repeated sets and multiple effort levels. FiT makes even complex sessions clear and easy to follow. STAY ON TARGET Color-coded feedback shows whether you’re on pace. Spoken coaching, audio and haptic alerts help you respond without constantly checking your device—and spoken cues automatically match your chosen language. The Dual Progress Ring shows both your current interval and your overall workout progress at a glance. FARTLEK WITHOUT THE BUTTONS Switch to Fartlek mode and run by feel. FiT detects changes in your speed and automatically converts them into recorded intervals. No reaching for your device. No tapping between efforts. Just run. LEARN FROM EVERY WORKOUT See how each interval performed with detailed pace, heart rate, cadence and distance metrics. Compare workouts to understand how your performance changes over time. Personalized coaching insights use your workout data to highlight meaningful patterns and offer practical recommendations for future sessions. ADVANCED EFFORT TRACKING Advanced workouts can distinguish between sprint, hard, moderate and easy efforts, helping you create more varied sessions and analyze every effort afterwards. APPLE WATCH, IPHONE AND YOUR FITNESS APPS Train in your chosen language on Apple Watch or iPhone. Create and edit interval workouts directly on your watch, with controls for inserting, reordering and deleting interval groups. Save completed workouts to Apple Health and sync your sessions with Strava. KEY FEATURES • Flexible interval timer for running, HIIT and Tabata • Automatic Fartlek interval detection • Dual-ring live workout progress • Color-coded pace and effort feedback • Localized spoken coaching, plus audio and haptic alerts • Create and edit interval workouts on Apple Watch • Detailed pace, heart rate, cadence and distance metrics • Performance tracking for every interval • Workout comparisons and personalized insights • Sprint, hard, moderate and easy effort levels • Apple Health and Strava integration • Light and dark appearance Run free. Train smart. Learn from every session. SUBSCRIPTION TERMS FiT offers an optional auto-renewable subscription. Payment will be charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your Apple ID account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.iubenda.com/privacy-policy/39192677

One more set? Have I done enough? Am I overdoing it? You've been answering by feel. Loadwave answers with a light. Log a set — weight and reps — and you immediately see green, yellow or red. Green: keep going. Yellow: you're at the top edge. Red: that's enough for today. That's it. The maths runs underneath; you never have to learn it. WHY IT WORKS Every weight has an ideal number of reps. Fewer, and the stimulus is too small. More, and you accumulate fatigue and risk. Just right, and you get the most out of the session. A. S. Prilepin worked this out from the training logs of thousands of elite lifters, and it still underpins strength programming today. Loadwave measures every set against it — and on a mixed-zone day it switches to Hristov's INOL formula, so a textbook multi-zone session never triggers a false alarm. WHAT YOU GET • A live light after every set — at the bar, not in hindsight • Working-weight calculator: pick a percentage, get the kilos and the recommended sets and reps • Four lifts: squat, bench, deadlift, curl — with variations (paused, close grip, speed, tempo, pin, deficit, block) • Per-variation references you never have to test for: derived from your competition max • Weekly load chart across 8 weeks, with thresholds — see when you're drifting into too much • RPE drift detection: if the same weight feels heavier week after week, you hear about it early • INOL · NL · AWL for the curious — one tap away, never in the way • Export and restore — your data is yours, and opens in any spreadsheet HOW IT BEHAVES No account. No sign-up. No ads. No internet needed — reception in a gym is bad anyway. Everything stays on your phone. WHAT'S FREE Everything for the first 30 days, with no card required. Nothing starts charging; the trial simply ends. After that these stay yours with no time limit: logging, the light, the working-weight calculator, all four competition lifts, 30 days of history, and full export. Pro is a one-time purchase — no subscription. It opens the complete history, the weekly chart, RPE drift detection and the variations. Your sessions are never deleted. Older ones aren't shown without Pro, but they stay on your phone and in every export — and reappear the moment you unlock. WHO IT'S FOR Powerlifters and strength trainees who work with numbers but don't want to keep a spreadsheet. Competing or just getting stronger, the question is the same: was today enough? IMPORTANT Loadwave gives guidelines, not medical advice. Prilepin's numbers assume explosive sets taken short of failure. You know your body — the app is just a better pair of glasses.