Zero: Fasting Timer

Your weight loss goals. More ways to get there. Zero is the all-in-one weight loss app built for real results. Most apps stop at simply tracking fasts or calories. Zero connects the full picture — fasting, protein, meals, hydration, habits, and now GLP-1 support — so you have the tools to work toward your goals, whatever your path. Here’s how Zero helps you get there: • Track your intermittent fasting — Engaging timers, streaks, and insights help you stay motivated and consistent across your entire fasting journey. • Log meals the smart way — Skip the tedious manual meal entry routine. With Zero Plus, snap a photo and get instant macros, protein composition, and clarity on how effectively your meals support your goals, even when your appetite changes. Your first meal logs are on us, so you can try it before you subscribe. • Hit your personalized Protein Score — Zero Plus tracks a daily protein target that adapts to your weight and goals. Better protein = better satiety, better muscle retention, better weight loss. Whether you’re fasting or taking a GLP-1, Zero makes it automatic. • On a GLP-1? Zero’s here for that — If you already have a prescription, GLP-1 Mode lets you log your doses, set reminders, record side effects to discuss with your doctor, and see your weight trend alongside your medication history, with guidance for every stage. Included with Zero Plus. • Stay hydrated to power your fasts — Water tracking with Zero Plus helps you maintain energy, reduce cravings, and support metabolic function throughout the day. Staying hydrated is important, particularly when fasting or taking a GLP-1 medication. • Build healthy habits that actually matter — Track movement, sleep, mood, and other daily pillars that reinforce your routines. • Challenge yourself — Hit protein targets, maintain fasting streaks, and stay accountable with motivating challenges built around outcomes, not vanity metrics. • Learn the real science — Understand how fasting, protein, hydration, and GLP-1 medications fit into sustainable weight loss and metabolic health — with insights from leading experts. • See measurable progress — Watch your streaks grow, your protein consistency rise, and your weight trend take shape with clean, insightful charts. Whether you’re fasting, taking a GLP-1, coming off one, or never planning to, Zero gives you the structure, guidance, and clarity most apps miss. Your approach may change, but your support doesn’t have to. Zero is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult your doctor or qualified healthcare provider before making any changes to your diet, fasting routine, or health regimen. Zero is free to download, with fasting timers, streaks, weekly trends, expert articles, and challenges included. Zero Plus is an optional subscription that unlocks photo meal logging and your Protein Score, water tracking, custom fasts and saved presets, Fat-Burning Mode, the mood journal and daily habit insights, premium articles and Plus-only challenges, and monthly, yearly, and correlated charts. A free trial is available. Payment for Zero Plus will be charged to your Apple Account when you subscribe. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Manage your subscription in your Account Settings. Read more terms & conditions: Terms of use: https://www.zerolongevity.com/terms-of-use Privacy policy: https://www.zerolongevity.com/privacy-policy