Fartlek Interval Trainer vs Leptin

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

Leptin turns a health programme into a plan you can follow every day: when to eat, what to eat and how to move. Choose a programme designed by experts, enrol in a few taps, and each day's plan appears on your Home screen. Your programme fits around your sleep and your schedule. It suggests changes but never forces them, and everything goes back to how it was when the programme ends. Leptin is not a calorie counter. What matters is the pattern you build over weeks, not a single meal. Together, those patterns shape your metabolic health: the foundation of your weight, your energy and how you feel through the day. PROGRAMMES Structured plans for eating, fasting and movement, with reminders at the right moment and progress you can see. FAST A timer built around metabolic phases rather than a plain countdown, so you always know where you are in your fast and when your eating window opens. A Live Activity keeps it on your lock screen. EAT Guidance when it counts. Eating out? Scan the menu. At home? Get a suggestion that fits your plan. Log a meal in seconds by photo, voice or search, and Leptin identifies the foods and their nutrients. MOVE Guided workouts with an audio coach that calls out each step and keeps going while your phone is locked, interval walks, and free logging for everything else. Suggestions take into account how long you have been fasting. COACH An AI coach you can ask anything, by voice or text, that knows your programme, your fasting state and your history. INSIGHTS Streaks, history and progress over time. Apple Health sync keeps your workouts and activity in step with the rest of your health data. Leptin works offline. Everything you log is saved on your phone and syncs when you are back online. Leptin is a wellness and lifestyle app. It is not a medical device and does not diagnose, treat, cure, or prevent any disease, and it does not provide medical advice. The in-app AI coach is an assistant, not a clinician, and its guidance should never be relied on for medical decisions. Consult a qualified healthcare professional before starting any fasting, nutrition, or exercise programme, especially if you are pregnant or breastfeeding, under 18, or living with a medical condition such as diabetes, heart disease, low blood pressure, or a history of disordered eating. Stop and seek medical attention if you feel faint, disoriented, unusually short of breath, experience chest pain, or feel unwell in any way. Core fasting tracking, timers and insights are free. SUBSCRIPTIONS Leptin offers optional auto-renewable subscriptions (subscription group "Leptin Plans") that unlock the AI coach with a monthly credit allowance, plus expanded access to guided programmes: - Basic: $9.99/month or $99.99/year - Premium: $19.99/month or $199.99/year - Unlimited: $49.99/month or $499.99/year Prices are in US dollars. Your local price is shown in the app before you buy. Payment is charged to your Apple ID at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or turn off auto-renew in your App Store account settings after purchase. Terms of Use (EULA): https://leptin.app/terms Privacy Policy: https://leptin.app/privacy