FastSpan

FastSpan is a fast, private intermittent fasting timer and tracker — no account, no subscription. Open it and start your fast in one tap.

WHY FASTSPAN
• One-time unlock, not a subscription. Pay once, keep it forever.
• 100% offline. Your data never leaves your device.
• Lightweight and distraction-free.

TRACK YOUR FAST
• A big circular ring shows elapsed time, your goal and time remaining at a glance.
• See your fasting stage in real time: digestion, blood sugar stabilizing, fat burning, ketosis and autophagy.
• Presets for 16:8, 18:6, 20:4 and OMAD, plus custom goals.

SEE YOUR PROGRESS
• Daily fasting-hours chart by week or month.
• Average fast length, completion rate and your longest fast.
• Full history log with sort and filter, personal records and streaks.

OWN YOUR DATA
• Export everything to CSV or JSON anytime.
• Gentle reminders for when your fast ends and your eating window begins.

The free version is supported by ads. Unlock FastSpan Pro once to remove ads — lifetime access, no subscription.

FastSpan does not provide medical advice. Consult a professional before changing your diet or fasting routine.