Dynamic TDEE Tracker vs I Fast Different

Stop guessing your TDEE. This app calculates your real, personalized Total Daily Energy Expenditure using your actual calorie intake and weight trend over the last 12 weeks — not rough estimates from height, weight, and activity labels. Whether you’re cutting, maintaining, or bulking, your TDEE changes as your body and lifestyle change. Traditional calculators can be off by 300–600 calories. This app uses your real-world data to show exactly where your calories balance today. How it works Log your daily calories. Weigh yourself often or input into apple health The app analyzes your last 12 weeks to determine the calorie level where your weight is maintaining or trending. You get a live, adaptive TDEE estimate that updates automatically as your habits change. What you can do with it Understand your true maintenance calories Adjust deficits or surpluses with precision See how lifestyle changes affect your metabolism Plan sustainable fat loss Avoid plateaus Build muscle without overshooting calories

Most intermittent fasting apps lock you into the same eating window every day. I Fast Different takes a different approach: it alternates a shorter fast and a longer fast on a repeating cycle — a style many people find easier to sustain than a fixed 16:8 or 18:6 schedule. Set your two durations once. The app alternates them automatically, keeps your schedule on track, and keeps a clear countdown front and center. FEATURES • Alternating cycle — define a shorter and a longer fast; the app alternates them and shows what's coming up next. • Live progress ring — a clean countdown to your target that keeps counting in overtime when you go past your goal. • Flexible start — fast by duration, or to a target end date and time. • Full control mid-fast — complete, cancel, adjust the length, edit the start time, or reset at any point. • Log and calendar — review every session in a list or month calendar, with completion percentage and notes; fix a past session's times if you forget to stop. • Statistics and streaks — monthly completion rate, total time fasted, average fast length, and your current and best day streak. • Reminders — optional chimes at the halfway point, every 25%, a set time before the end, or at completion. • Auto-schedule — optionally start and stop fasts automatically on the right days. • Apple Watch app and complication — start, stop, and adjust from your wrist, with a glanceable ring on your watch face. • Backup and restore — move all your data between devices with a simple export and import. • Private by design — your data stays on your device. No account, no sign-in, no tracking. I Fast Different is a tracking tool, not medical advice. Consult a healthcare professional before changing your eating patterns, especially if you have a medical condition.