Now on Google Play

Fast with purpose,
live with energy.

Fasting Diary makes intermittent fasting effortless — track your fasts, build streaks, and unlock your best health with science-backed plans.

GET IT ON Google Play
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7
Day Free Trial
5+
Fasting Plans
100%
Free to Start
9:41 ●●● ▌
Today
FASTING (14:10)
08:00
Target reached in 5h 59m
Fasting Window
6:42 am → 8:42 pm
14 hours
Eating Window
8:42 pm → 6:42 am
End Fast
Home
Progress
Journal
Profile
Why Fasting Diary

Everything you need to
fast smarter

Built for real people with real lives — simple enough for beginners, powerful enough for experts.

⏳
Live Fasting Timer
Real-time countdown with a progress ring. Smart alarms notify you when your fast ends and your eating window closes.
🔥
Streak Tracking
Build momentum with daily streaks and track your completion rate. Stay motivated with visible progress every day.
💧
Water Tracking
Log your daily water intake with a customizable goal. Stay hydrated throughout your fasting and eating windows.
📝
Journal & Check-ins
Record mood, wins, and challenges. Weekly check-in prompts help you reflect on your fasting journey over time.
⚖
Weight & BMI
Log weight entries, see BMI calculations, and track trends over 7, 14, and 30 days with weight projections.
📊
Analytics & Export
View fasting stats, completion rates, and streaks. Export your data as CSV or PDF to keep your records anywhere.
Plans

Start free. Upgrade when
you're ready.

Try all premium features free for 7 days. 7-day free trial with any premium subscription.

Free Plan
Essential Fasting
Packed with everything you need to build a fasting habit.
  • ✓ Fasting timer (14:10, 16:8, 18:6, 20:4)
  • ✓ Real-time countdown with progress ring
  • ✓ Daily water tracking (customizable goal)
  • ✓ Weight logging with BMI calculation
  • ✓ Fasting streak tracking
  • ✓ Journal entries (mood, wins, challenges)
  • ✓ Journal history with edit/delete/undo
  • ✓ Daily weight reminders
  • ✓ Weekly journal prompts
  • ✓ Smart alarms (fasting end, eating window end)
  • ✓ Export data as CSV
  • ✓ Light / Dark / System theme
  • ✓ Basic analytics (completion rate, streaks)
Free — forever
Download Free
Most Popular
Premium Plan
Advanced Fasting
Unlock powerful tools for serious results.
  • ✓ Everything in Free
  • ✓ Custom & OMAD fasting plans
  • ✓ Adjust start time (backdate a fast)
  • ✓ Extend fast duration mid-fast
  • ✓ Advanced analytics & weight projections
  • ✓ Export data as PDF
  • ✓ Ad-free experience
  • ✓ Priority feature updates
🎉
7 Days Free Trial
Full premium access via Google Play. Cancel anytime.
$2.99/month  or  $17.99/year (Save 50%)
Start Free Trial
Getting Started

Up and fasting in
under 60 seconds

No complicated setup. No dietary expertise required. Just download and start.

1
Download the App
Get Fasting Diary free from the Google Play Store. No account needed to start fasting.
2
Choose Your Plan
Pick from 14:10, 16:8, or explore OMAD, 5:2, and custom plans with the premium trial.
3
Start Your Fast
Tap Start Fast. We track time, send reminders, and celebrate when you hit your goal.
4
Watch the Results
Review streaks, trends, and progress over weeks to see and feel the difference.

Try Premium free for 7 days

7-day free trial with any premium subscription. Just better fasting.
Cancel anytime, keep the free plan forever.

Download on Google Play