Track your fast.
Hit your window. Every day.
Pacali's built-in fasting timer shows your fasting progress live, notifies you when your eating window opens, and tracks your history — all free. Combine it with AI calorie tracking for a complete picture.
Protocols
Supports all major fasting protocols
Choose a preset or set a fully custom fasting window. Pacali adapts to how you fast.
Fast for 12 hours, eat within a 12-hour window. The gentlest preset, often the first step.
Fast for 16 hours, eat within an 8-hour window. A common starting point for intermittent fasting.
Fast for 18 hours, eat within a 6-hour window. A step up from 16:8, typically used after adaptation.
Fast for 20 hours, eat within a 4-hour window (the "Warrior Diet"). Suitable for experienced fasters.
One Meal A Day — a 23-hour fast with a 1-hour eating window. Set it up as a custom fast.
Custom
Set any fast from 1 to 72 hours. Pacali adapts to your schedule.
Benefits
Everything you need to fast consistently
Live countdown timer
See exactly how long remains in your fast and when your eating window opens — updated in real time.
Fasting history
Track every completed fast. See your streaks, average fast length, and which days you stuck to your window.
Completion alert
Get a notification the moment your fast reaches its target — even when the app is closed.
Pairs with calorie tracking
Combine fasting with Pacali's AI calorie and macro tracking. Log your meals during your eating window with a photo — done in 3 seconds.
No setup required
Select your protocol and start your fast. The timer runs in the background even when the app is closed.
Free, no subscription
The fasting timer is included in Pacali’s free plan. No Premium required.
FAQ
Intermittent Fasting FAQ
- What is the best intermittent fasting protocol for beginners?
- 16:8 is a common starting point: for example, skip breakfast and eat between noon and 8 PM, which fits most schedules. Some people begin with a gentler 12:12.
- Does Pacali track what I eat during my eating window?
- Yes. Pacali combines fasting tracking with full calorie and macro tracking. Snap a photo of your meal during your eating window and Pacali's AI logs it in under 3 seconds.
- Can I customize my fasting window?
- Yes. Enter any fast length from 1 to 72 hours and Pacali tracks it.
- Does the fasting timer work when the app is closed?
- Yes. Your fast keeps counting while the app is closed, and Pacali sends a notification when it reaches its target.
- Is intermittent fasting safe?
- Intermittent fasting is not suitable for everyone. If you have a medical condition such as diabetes, are pregnant or breastfeeding, are under 18, or have a history of eating disorders, talk to a healthcare professional before fasting. Pacali does not provide medical advice.
Start your first fast today — free
Download Pacali. Select your fasting protocol and start the timer. Combine with AI calorie tracking for the full picture.