Fast Easy vs Shifting Source

Fast Easy is a clean, focused fasting timer designed to help you build a consistent intermittent fasting habit — without the clutter. Choose from popular fasting protocols like 16:8, 18:6, 20:4 (OMAD), Circadian Rhythm (13:11), or the Monk's Fast (36:0). Or set a custom duration that fits your routine. START FASTING IN SECONDS Tap a preset, hit start, and watch your progress ring fill as you fast. Toggle between elapsed and remaining time at any moment. When you hit your goal, a celebration lets you know you made it. TRACK YOUR PROGRESS ON YOUR LOCK SCREEN With Live Activities and Dynamic Island, your fasting timer stays visible without opening the app. See your progress at a glance throughout your day. REVIEW YOUR HISTORY Every completed fast is saved automatically. Browse your history, view detailed breakdowns of each session, and see how your fasting duration compares to your goals. STAY MOTIVATED WITH STATS Track your current and longest fasting streaks, total hours fasted, average fast duration, and goal completion rate. A weekly chart shows your fasting pattern at a glance. MAKE IT YOURS Choose from 8 color themes — Ocean, Sunset, Midnight, Forest, Berry, Ember, Snow, and Noir — each with a matching app icon and 10 unique timer skin designs. GET NOTIFIED Receive a notification the moment you reach your fasting goal so you never have to keep checking. PRIVACY FIRST All your data stays on your device. No accounts, no cloud sync, no tracking. Just you and your fasting goals. Fast Easy is built entirely with Apple frameworks — no third-party code, no ads, no subscriptions. Just a beautiful, reliable fasting timer.

Shifting Source brings intermittent fasting and the ketogenic diet together in one app. Built as the companion to the book The Keto & Intermittent Fasting Lifestyle, it follows the same principle: understand why it works, and the results will follow. FASTING TIMER WITH LIVE ACTIVITY • Choose 16:8, 18:6, 20:4, OMAD or your own custom window • Follow your fast right on the Lock Screen and in the Dynamic Island • See which phase your body is in along the way, explained in plain language • Extended fasting (48 to 72 hours) with a mandatory safety check before you start KETO WITHOUT THE HASSLE • Log meals with net carbs, fat and protein • TDEE calculator that gives you personal calorie and macro targets • Daily overview of your carbs against your goal TRAINING AND HABITS • Five exercises with instructions and an easier version of each • Log your sets and reps in seconds, including past days • Weekly challenges that grow with you, streaks and badges • Guided breathing exercises for calm and focus INSIGHTS • Calendar with fasts, meals, workouts and wellbeing day by day • Weight, resting heart rate, HRV and sleep from Apple Health • Trends for energy, mood and hunger over time LEARN WHY • Guides and research articles in English, Danish and Swedish • Excerpts from the book, open to everyone • All content is built on peer reviewed research YOUR DATA IS YOURS • No account and no login • Everything is stored on your device • Health data is never shared with third parties • Export or delete everything with one tap Shifting Source does not provide medical advice. Talk to your doctor before starting fasting or a ketogenic diet, especially if you are pregnant, breastfeeding or have a medical condition.