Une application simple à utiliser
Response from developer
Merci beaucoup pour ce retour ! Une app simple et claire, c'est exactement ce qu'on vise avec FastZen. Si une idée ou un souci vous vient, écrivez-nous depuis la page support.

Lowest price: Free 6 months ago (-100%)
This app helps you manage your fasting schedule with customizable timers and reminders. It offers a recurring weekly routine, a timer that remembers your progress, and a clear view of your active fast. Review your history and track your streaks, all while keeping your data private on your device.
1.4.1
October 28, 2026
Fasting tracking features are unchanged in this version.
$5.99
FastZen Custom Week
A protocol and a start time for each day.
Merci beaucoup pour ce retour ! Une app simple et claire, c'est exactement ce qu'on vise avec FastZen. Si une idée ou un souci vous vient, écrivez-nous depuis la page support.
FastZen is a fasting routine and timer tool designed to help users manage their intermittent fasting schedules. It offers customizable timers, recurring weekly routines, and private data storage on your device.
No, FastZen is ad-free. The description explicitly states 'No account, ads, server sync, or external analytics,' ensuring an uninterrupted user experience.
The core features of FastZen, including the timer, weekly routine, local reminders, Live Activities, and history, are free. The 'Custom Week' feature, which allows for more personalized scheduling, is available as a one-time purchase.
All your fasting data, including completed fasts, duration, and streaks, stays on your device. FastZen does not use accounts, server sync, or external analytics, prioritizing user privacy.
FastZen is available for iPhone and iPad. It supports Live Activities, which are a feature of supported iPhones.
The latest version of FastZen is 1.2.2, which was last updated on September 20, 2026. This indicates a relatively active development cycle for the app.
No, FastZen is a timer and routine tool and does not provide medical advice or promise specific health outcomes. It is intended for personal tracking and management of fasting schedules.
You can set custom fasts ranging from 1 to 48 hours. Popular options like 16:8, 18:6, 20:4, and OMAD are also available.