Hone: Intermittent Fasting

Hone is the intermittent fasting app for the disciplined — one tap, Dynamic Island Live Activity, Apple Watch complications, and Precision Window guardrails.

Free core. No account. No ads. No tracking. Your fast stays yours.

If you've outgrown "wellness" apps that chase you for $70/year to show a timer — Hone is built for you.

WHAT HONE DOES DIFFERENTLY

Most fasting apps overwhelm you with features you'll never use — calorie tracking, food diaries, social feeds, coaching chatbots. Hone does one thing at a precise level: tracks your fast and shows you the biology of what's happening inside you, in real time.

→ Start a fast in under 2 seconds
→ See your timer live on Dynamic Island without opening the app
→ Check your fast from your wrist with the Apple Watch complication
→ Watch your body shift through metabolic zones as it happens
→ Track your history, streaks, and personal records

PRECISION WINDOW ENGINE (Hone Pro)

Most fasting apps let you cheat. Hone doesn't. The Precision Window engine enforces the guardrails that make fasting actually work:
• Caffeine cutoff — warns you when late caffeine will wreck tomorrow's sleep-protected fast
• Training-day exception — your long-run day isn't your OMAD day
• Sleep protection — the app refuses to auto-end a fast while you're sleeping
• Max-fast cap — hard stop at the duration you set, because extended fasts without supervision are a bad idea

FAST PURITY — CLEAN vs BLUNTED

Not all fasts are equal. Coffee with cream is not a clean fast. Hone lets you toggle Clean or Blunted, and your streak, complication, and Dynamic Island color reflect the truth.

FOCUS FILTER

Turn on Fasting Focus and DoorDash, UberEats, Postmates notifications disappear until you break your fast. Precision isn't just physiology — it's removing the trigger vectors.

METABOLIC ZONES — KNOW WHAT YOUR BODY IS DOING

As you fast, your body moves through distinct physiological phases. Hone tracks them in real time:

• Fed — Digestion active, insulin managing glucose storage
• Early Fasting — Insulin drops, glycogen stores deplete
• Fat Burning — Metabolic switch flips, fat becomes primary fuel
• Ketosis — Ketone production increases, mental clarity sharpens
• Deep Ketosis — Autophagy begins, cellular cleanup underway

Each zone transition triggers a notification so you know exactly when your body shifts gears.

BUILT FOR YOUR LOCK SCREEN

Your fasting timer lives on Dynamic Island and your Lock Screen. No need to unlock, no need to open the app. Glance and know.

Home Screen and Lock Screen widgets keep your fast visible throughout the day.

ALL PROTOCOLS FREE

• 16:8 — The most popular. 16 hours fasting, 8 hours eating.
• 18:6 — A step further for the experienced.
• 20:4 — Warrior diet structure.
• OMAD — One Meal A Day for maximum metabolic work.

TRACK YOUR EDGE

• Calendar view with every fast
• Current streak and best streak
• Total fasts and hours fasted
• Average duration and longest fast
• Daily reminders to stay consistent

DESIGNED WITH RESPECT

• 100% free core — every protocol, every zone, every feature that matters
• No account required — works offline, always
• No ads, no tracking, no data collection
• No calorie counting, no food logging
• OLED-optimized dark mode — because you start fasts at night

Your fasting data stays on your device. Period.

WHO HONE IS FOR

• Serious intermittent fasters who've outgrown "wellness" apps
• People who want discipline, not pep talks
• Anyone tired of paying $70/year to see a timer
• Curious minds who want to understand the biology of their fast
• Privacy-conscious users who refuse to be tracked

Hone is not a medical app and does not provide medical advice. Fasting zones are approximate estimates based on general research. Consult a healthcare professional before starting any fasting program.