Just Fast - Fasting Timer

Name: Just Fast - Fasting Timer
Rating: 5 (6 reviews)
Author: Adrian Cabala

Intermittent Fasting Tracker

Free · Designed for iPad. Not verified for macOS.

6 Ratings
Age Rating

16+
Years
Category

Health & Fitness
Developer

Adrian Cabala
Language

EN
English
Size

44.5
MB

The only fasting app with eating window countdown. See fat burning, ketosis & autophagy phases. Just Fast is the intermittent fasting timer that tracks both your fast and your eating window — a combination no other fasting app offers. Whether you're new to 16:8 or pushing into 20:4, OMAD, or custom schedules, Just Fast gives you a clear, distraction-free timer alongside the insights to understand what your body is doing and build habits that stick. EATING WINDOW COUNTDOWN — ONLY IN JUST FAST Most fasting apps tell you when your fast ends. Just Fast also tells you when your eating window closes. Know exactly how much time you have left to eat, so you stop overrunning your window by accident. KEY FEATURES • Eating Window Countdown — track when your eating window closes, not just when your fast ends • Fasting Phases — see fat burning, ketosis, and autophagy stages visualized in real time • All Major Fasting Methods — 16:8, 18:6, 20:4, OMAD, 14:10, 12:12, 24h, and custom durations • Streak Tracking with Grace Periods — maintain your momentum even on tough days • Pattern Insights — review your fasting history and discover your most consistent windows • Weight Tracking with BMI — log weight entries and track progress over time • Smart Notifications — reminders that support your schedule, not disrupt it • Beginner-Friendly Onboarding — choose your goal, fasting expertise, and preferred schedule in minutes • 100% Offline — no account, no signup, no cloud required • 15 Languages — English, German, French, Spanish, Polish, Portuguese, Italian, Japanese, Korean, Arabic, Russian, Swedish, Finnish, Norwegian, Turkish UNDERSTAND YOUR FAST, NOT JUST YOUR TIMER Just Fast visualizes the metabolic phases of fasting as they happen: fat burning begins around hour 12, ketosis deepens past hour 18, autophagy activates beyond hour 24. You do not need a biology degree — the app shows you where you are and what your body is doing. FREE AND LIGHTWEIGHT All core features are free. No subscription. No paywall. Just Fast is also one of the lightest full-featured fasting apps available — under 50MB download, compared to 200MB+ for most competitors. Fast to download, fast to start. Note: The app is free with light banner ads on secondary screens (history, settings). The main fasting timer screen is completely ad-free. PERFECT FOR • Beginners starting their first 16:8 protocol • Intermediate fasters exploring 18:6, 20:4, or OMAD • Anyone who wants fasting phases explained without complexity • People managing multiple fasting schedules across 15 languages • Privacy-conscious users who prefer no-account apps Download Just Fast and start your first fast today — no signup required. --- Privacy Policy: https://justfast.app/privacy Support: support@justfast.app

Ratings & Reviews

5.0

out of 5

6 Ratings

Destined to become my only fasting app
10/26/2025
doug_1963
This app is fairly new, but even so has a lot of great aspects to it. I’m new the fasting, but I’ve used this to track my two fasts and found it very easy to use, I’ve even managed to get my wife to use it.Outside of the app one thing that I thoroughly am impressed with is the response you get back from the developer. He’s still designing the app as well as adding elements that people using the app for asking for. This will very quickly become my one and only fasting app.
Destined to become my only fasting app
10/26/2025
doug_1963

This app is fairly new, but even so has a lot of great aspects to it. I’m new the fasting, but I’ve used this to track my two fasts and found it very easy to use, I’ve even managed to get my wife to use it.Outside of the app one thing that I thoroughly am impressed with is the response you get back from the developer. He’s still designing the app as well as adding elements that people using the app for asking for. This will very quickly become my one and only fasting app.
Easy to use.
10/26/2025
Sockemboffer
Really like the design of this app. It took me a couple of seconds to get used to how you set or adjust the time, but once I figured it out, I really like it! Thank you!
Easy to use.
10/26/2025
Sockemboffer

Really like the design of this app. It took me a couple of seconds to get used to how you set or adjust the time, but once I figured it out, I really like it! Thank you!

• Pattern Insights now calculates your most consistent fasting windows more accurately. • History and stats display updated for improved reliability. • Notification timing fixes — reminders now fire at exactly the right moment.

Version 1.15.1 May 5

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You

The following data may be collected and linked to your identity:
- Identifiers
Data Not Linked to You

The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

Information

Seller: Adrian Cabala
Size: 44.5 MB
Category: Health & Fitness
Compatibility: Requires iOS 13.0 or later.

iPhone
Requires iOS 13.0 or later.

iPad
Requires iPadOS 13.0 or later.

iPod touch
Requires iOS 13.0 or later.

Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English
Age Rating: 16+

16+

Learn More

Contains
Health or Wellness Topics