Ketone - Fasting Timer & Diary

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Everyone
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Everyone
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About this app

🌿 Take a moment today to care for yourself.

⏱️ Ketone is a self-care app centered around intermittent fasting — track your weight, water intake, sleep, mood, and notes all in one place. Record and reflect on the small changes that happen every day.


🕐 Intermittent Fasting, Simple & Beautiful
Choose your plan — 16:8, 18:6, OMAD, or any custom duration — and just tap start.
From fat burning → ketosis → autophagy, see exactly what's happening in your body at each stage.
You'll get notified when you reach each milestone, so you can trust the timer and focus on your day.
Record your weight before and after fasting to see how your body changes with each session.


📸 Fasting Results & Sharing
When you finish a fast, get a clear summary of your duration, stages reached, and weight change.
A streak card and stage-journey timeline make your consistency visible.
Save your results as a beautiful image or share them with friends to celebrate your progress.
Even mid-fast, share your live timer in two styles — full timer or compact card.


📓 One Page a Day — Daily Diary
· Weight — log morning and evening, tap to edit or delete
· Water — track intake vs. your daily goal
· Sleep — bedtime, wake time, and quality
· Mood — morning, noon, and night with emojis
· Notes — anything on your mind

Record your whole day on one screen. A smart card on the fasting screen takes you straight to today's diary in one tap.


🤝 Fasting, Together
See who else is fasting right now — anonymously.
· Cheer fellow fasters straight from the live banner
· Reply to cheers you receive
· Filter by same stage to find people at a similar point
· Nicknames and avatars only, no external social linking


🏆 Your Fasting Journey, in One Place
The Profile Hub on the More tab shows your total fasted hours, longest fast, and a 5-stage badge wall.
· Badges for Start → Fat Burning → Ketosis → Autophagy → Cell Regeneration
· Customizable profile avatar


📊 Insights That Show Your Progress
· Weekly trends — weight, fasting, mood, water, sleep over 7 days
· Streaks — consecutive days of records
· Daily summaries — expand any day for the full picture


🔥 A Habit System That Grows With You
Track streaks across 5 daily habits — water, weight, mood, sleep, and diary.
As your records build up, your streaks rise. Small wins add up to big changes.


🎨 8 Color Themes
Snow, Rose, Peach, Lavender, Sky, Mint, Ocean, Forest
— pick one that matches your mood today.


✨ What Makes Ketone Special

• Fasting + daily wellness + an anonymous community in one app
• All core features available without subscription
• Clean, intuitive design
• No ads, no external social linking — just you and people walking the same path

We stripped away the clutter and kept only what matters.
Start your 1-minute daily check-in today.


❓ Frequently Asked Questions

Q. Can I drink water during intermittent fasting?
A. Yes! Water, black coffee, and unsweetened tea are fine during fasting. Use Ketone's water tracker to log your intake.

Q. What is 16:8 fasting?
A. It means fasting for 16 hours and eating within an 8-hour window — the most popular intermittent fasting method. Ketone makes it simple with a one-tap timer.

Q. How do I check my fasting history?
A. The Insights tab shows weekly trends, streaks, and daily summaries at a glance.

Q. Does the app cost anything?
A. All core features are completely free. Use the fasting timer, weight, water, sleep, and mood tracking without any subscription or payment.

Q. Can I fast together with other people?
A. Yes — the "Together" tab lets you see other fasters with anonymous nicknames and cheer them from the live banner.
Updated on
May 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Health and fitness and App activity
This app may collect these data types
Personal info, Health and fitness, and Device or other IDs
Data is encrypted in transit
Content rating
Everyone
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App support

About the developer
워블리로켓
jjungmin@gmail.com
동남구 고재1길 3, 가동 202호(원성동, 진우빌라) 천안시, 충청남도 31187 South Korea
+82 10-4411-3903

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