Fast smarter, not harder. FastZen helps you stay on track with streaks, custom schedules, insights, and reminders that keep you consistent.
Take control of your fasting journey with FastZen – Intermittent Fasting Tracker.
Simple, powerful, and designed to keep you focused — no clutter, just the essentials.
Lose weight, boost energy, and stay consistent with the easiest fasting app you’ll ever use.
Why choose FastZen:
• Custom fasting schedules: 16:8, 20:4, OMAD, or up to 168 hours
• Track progress with history, streaks, and insights
• Smart reminders before fasting ends, when it finishes, before scheduled starts, and at actual starts
• Stay motivated with achievements and milestones
• Calendar view of all completed fasts with complete details on click
• Clean, modern design with light and dark mode
• Simple yet effective widgets
FastZen makes intermittent fasting easy, effective, and sustainable — whether you’re just starting or already advanced.
Ratings & Reviews
5.0
out of 5
9 Ratings
What's new in FastZen: Intermittent Fasting Tracker App:
• Streaks card complete changed for stats like Total Completed, Incompleted and also longest fast.
• Monthly overview also changed for better visibility.
• Calendar details have new information and it's more accurate now with real calculations.
Version 2.0.6
The developer, MefjuDev LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More