Fuelin vs 4Level

Fuelin is a personalized sports nutrition and fueling app for runners, cyclists, triathletes, hybrid athletes, and anyone who trains. It tells you what, when, and how much to eat: your daily calorie, carbohydrate, protein, and fat targets adapt to your workouts and goals, so you can fuel training, recover well, and manage body composition. Fully automated, no math required. Fuelin is trusted by 100K+ athletes. WHO IT'S FOR Whether your goal is everyday fitness, weight loss, muscle gain, HYROX, a marathon, or IRONMAN, Fuelin plans your nutrition. Supports 30+ sports and activities, from swimming to CrossFit. NUTRITION THAT ADAPTS TO YOUR TRAINING • Daily nutrition planning: calorie and macro targets adapt to planned and completed workouts, so hard days get more fuel and rest days less. • Smart Meals: personalized meal and portion recommendations based on your goals, training, and preferences. • Smart Adjustments: upcoming meal targets rebalance based on what you've already eaten. • Workout and race fueling: guidance on what to eat and drink before, during, and after runs, rides, and hard sessions, plus Race Week coach insights. • Body composition: lose weight or build muscle while still fueling your workouts. • Simple food logging: talk or type to the AI food logger, scan a barcode, save recipes and meals, and log in units like scoops or slices. PERSONALIZED TO YOU Fuelin builds your plan around your goal, body weight, gender, athlete experience level, and daily activity level. It estimates your resting metabolic rate (RMR), functional threshold power (FTP), and threshold pace, or you can enter your own. BUILT WITH SPORTS NUTRITION EXPERTS Created by sports dietitians, including co-founder Scott Tindal (20+ years in pro sport) and Dr. Alan McCubbin (researcher, 20 years with endurance athletes). IRONMAN World Champions Jan Frodeno and Daniela Ryf are on the team. WORKOUT INTEGRATIONS Connect Garmin, Strava, TrainingPeaks, V.O2, Pushing Limits, Final Surge, HumanGO, TriDot, or RunDot. You can also add workouts manually. HYDRATION, GUT TRAINING & MORE • Sweat Rate Tracker: measure sweat rate to guide hydration. • Carb Capacity Testing: gut training for endurance exercise. • In-app lessons on portions, supplements, and energy balance. • Community chat with Fuelin athletes. • Fuel Shop: member perks from Maurten, Momentous, and other partners. COMMON QUESTIONS How is Fuelin different from a calorie tracker? Calorie trackers count what you eat against a target. Fuelin sets that target from your workouts and goals, recommends meals and portions, and rebalances upcoming meal targets around what you've eaten. Do I need to be training for a race? No. Fuelin supports everyday training and rest days, whether your goal is more energy, weight loss, muscle gain, or an event. Can I use MyFitnessPal or Lose It!? Nutrition data from MyFitnessPal or Lose It! can sync to Fuelin through Apple Health. Does Fuelin include a human coach? Autopilot, Fuelin's core plan, is fully automated and doesn't include a coach. Copilot adds 1:1 messaging with a Fuelin nutrition coach and live group coaching every two weeks. WHAT ATHLETES SAY "Fuelin is the daily companion to take the guess work out of nutrition that I wish I had earlier in my career." - Jan Frodeno, 3x IRONMAN World Champion PLANS Fuelin requires a paid subscription. Autopilot: automated nutrition planning, Smart Meals, Smart Adjustments, food logging, workout syncing, hydration and gut-training tools, lessons, and community chat. Copilot: everything in Autopilot plus 1:1 coach messaging and live group coaching every two weeks. Medical Disclaimer: Seek a doctor's advice in addition to using this app and before making any medical decisions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ U.S. Barcode Food Database Powered by FatSecret: https://fatsecret.com International Barcode Food Database Powered by Open Food Facts: https://openfoodfacts.org

4Level is made for ambitious amateur athletes who already train regularly and want to know: How fit am I really — and am I sticking to what I set out to do? WHAT 4LEVEL IS — AND WHAT IT IS NOT 4Level analyses the workouts you already record. It does not create training plans, workouts or coaching advice and does not replace a coach. You decide how you train; 4Level measures, explains and keeps you honest. YOUR LEVEL, 1 TO 100 One number from three building blocks: • Fitness — your training load of the last six weeks (CTL) • Capacity — running VO₂max (VDOT) or cycling watts per kilo • Consistency — how regularly you train and, once you set your resolutions, how faithfully you keep them Calculated for every single day back to your first workout, using only what was known on that day. Every value shows whether it was measured or estimated; the whole formula is explained in the app. STICK TO YOUR RESOLUTIONS Set per sport — running, cycling, hiking, swimming, strength — how often and on which days you intend to train, or train as you feel like it. Add weekly, monthly or yearly kilometre targets if you like (not for strength). 4Level shows whether you are ahead or behind right now, a 26-week heatmap, your streak in weeks and your month balance. Flexible by design: ran Monday, Tuesday and Saturday instead of Monday, Wednesday and Friday? The week still counts. Measured retroactively for the last 26 weeks if you want. LOAD, FATIGUE AND FRESHNESS Fitness, fatigue and freshness (CTL, ATL, TSB) show whether you are rested, building or overloaded — judged on the trend of the last days, not on how tired you are right after a session. Race predictions for 5 km to marathon come from your runs of the last 120 days: pace and, if you record it, heart rate. RECOVERY After each session dots fill the gap at the bottom of your level ring; when the ring closes, you are recovered. How long that takes depends on the load and intensity of the session and on your fitness. 4Level also reads resting heart rate, heart rate over the day, HRV and cardio recovery, analyses your history once and adapts the recovery time to how you actually recover — Apple Watch or another device that writes heart rate to Apple Health. A notification when you are recovered is optional. RUNNING, CYCLING AND HIKING Yearly goals with a marker where you should be today, this year against last year and your best year, weekly volume, records, all years at a glance. Plus a searchable list of all your workouts. WORKS WITH THE APPS YOU USE 4Level reads from Apple Health — everything your Apple Watch, Garmin Connect, Strava, Zwift, Wahoo and other apps write there. You choose per sport which app's recording counts; the same session recorded twice counts once, and missing heart rate, climbing or power is filled in from the other recording. PRIVATE BY DESIGN No account, no server, no analytics, no ads. Data is read from Apple Health and stays on your device. PRICING 30 days free with everything included. Afterwards 4Level Pro: a yearly subscription (renews automatically, cancel anytime in your Apple Account settings) or a one-time lifetime licence. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ The level is a training aid, not a medical assessment. Try the demo without any data.