Nistis vs FastKept

A fasting timer. That's it. Free to use, no account, no ads, no AI coach, no subscription required — upgrade once and keep it forever. Fix a forgotten fast in two taps. Your data stays on your device and exports any time. THE TIMER Pick a preset — 16:8, 18:6, 20:4, OMAD, 5:2 — or set a custom fast. One big ring shows elapsed, remaining, or percent; tap to switch. Started fasting before you opened the app? Adjust the start time mid-fast. Ending early or late? The end time is editable too. No lectures either way. YOUR HISTORY IS YOURS TO EDIT Every fasting app makes logging mistakes. Nistis is the one that lets you fix them: any fast, any field, any time — including days you forgot entirely. Tap an empty day, add the fast, done. Streaks and stats recompute instantly. No punishment screens. STAGES, NOT SERMONS A simple timeline shows the stages commonly associated with fasting — digesting, fat burning, ketosis ramp — with honest, hedged language and no medical claims. FREE MEANS FREE The timer, every preset, unlimited history with full editing, streaks, stats, notifications, and a home-screen widget. Free forever — in writing. Whatever ships free stays free. Available in 34 languages. NISTIS PRO — PAY ONCE IF YOU WANT MORE • Apple Watch app with complications — start and end from your wrist • Live Activity and Dynamic Island — your fast on the lock screen • Every widget style, including lock-screen widgets • Apple Health sync for weight and water • Advanced stats: trends, completion rate, weight overlay • Import from other fasting apps (first import free) and export any time $2.99/month, $14.99/year, or $29.99 once — yours for life. Other fasting apps charge $69.99 every year for less. PRIVATE BY ARCHITECTURE No account. No ads. No tracking SDKs. Works completely offline; optional iCloud sync uses your private iCloud, which we can't read. The only thing the app ever phones is Apple's purchase system. Check our App Store privacy label against any other fasting app — that's the whole pitch. Nistis — Greek νήστις, "the one who fasts." Pronounced NISS-tis. Not medical advice. Consult a doctor before changing your eating pattern. Privacy policy: https://nistis.com/privacy Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

FastKept is a simple fasting timer that keeps your plans and your full history on your iPhone. You decide when a fast starts and ends. All features free. No account needed. YOUR FAST AT A GLANCE • A live timer ring with time to goal and when your fast ends; tap it to switch between elapsed, remaining and percent • Started earlier? Set the real start time • Your eating window, with when it opens and closes • The last 7 days and today's logs on the same screen • Finish a fast with an optional mood and note PLANS THAT FIT • 12:12, 13:11, 14:10, 16:8, 18:6, 20:4 and 23:1, Flexi with no goal, or your own custom length • A weekly schedule with a different plan on some days, and rest days • Low-intake days for a 5:2 week • Name and save your own plans EVERY FAST IN YOUR HISTORY • Week, month and year charts, and a calendar of every day • A last-16-weeks view • Rolling 7 to 365 days, plus your all-time totals • Add a missed fast or edit the times; overlapping fasts are checked • A consistency count that allows breaks and never rewards fasting longer than your plan OPTIONAL LOGS • Weight, with a weekly trend and a rough date for your goal • Water and drinks, with a daily goal • Ketones, glucose, electrolytes, notes and progress photos that stay on your iPhone • Logs you don't use stay hidden REMINDERS YOU CHOOSE • Planned start, goal reached, 1 hour to goal, eating window opening and closing, weigh-ins and water • See every upcoming reminder in one list MORE • Home Screen and Lock Screen widgets, and a Live Activity in the Dynamic Island • Siri: "Start my fast" and "End my fast" • Apple Health (optional): save weight and water, and read your weight • App lock • Export to CSV or one backup file, and restore it • Light and dark themes, and larger text PRIVATE BY DESIGN Your fasts and logs are stored on your iPhone and are never sold or used for ads. An optional account (18+) can back up your records; progress photos are never uploaded. FREE, WITH AN OPTIONAL AD-FREE PLAN All features are free. The free version shows occasional, dismissible promotions for our own apps only, with no third-party ads. An optional subscription (weekly, monthly or yearly) removes all ads in all our apps on this iPhone. It unlocks no extra features. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel them in your Apple Account settings. Deleting the app doesn't cancel a subscription. IMPORTANT FastKept is a timer and log, not medical advice. It doesn't measure ketosis or any other body state. It isn't for people under 18, pregnant or breastfeeding, underweight, or with a current or past eating disorder. Talk to a doctor before you start or change a fasting routine, especially if you have diabetes or another medical condition or take medication. Drink water, and stop fasting and eat if you feel dizzy, faint, shaky or unwell. Terms of Use: https://fastkept.com/terms/ Privacy Policy: https://fastkept.com/privacy/