ZeroSugar vs LoseItFast

Zero Sugar helps you commit to sugar-free challenges and actually stick with them. Set your goal, check in once a day, and watch your streak grow on a beautiful calendar. Instead of complicated diet plans or calorie counting, Zero Sugar focuses on one simple habit: avoiding added sugar. The app turns your goal into a clear daily commitment you can track, celebrate, and restart whenever you’re ready.

A clean fasting timer. Pick your protocol, start the clock, and see which metabolic state your body is in as the hours pass. Five zones — fed, early fasting, fat burning, ketosis, deep ketosis — each with a plain explanation of what's happening. No coaching, no meal plans, no program to follow or subscribe to. Your history, streaks, and statistics are tracked automatically for you to look back on. The app is fully offline, so data stays on your phone. No account, no subscription, no ads. Available for iPhone.