Introduction
Welcome to the Trinity documentation.
Trinity is a modern intermittent fasting tracker designed to be fast, reliable, and distraction-free. This documentation explains every feature of the application, how it works, and the design decisions behind it.
Whether you're using Trinity for the first time or exploring its more advanced functionality, you'll find everything you need here.
Welcome
Unlike many fasting apps, Trinity is built around a simple idea:
Your fasting tracker should help you build habits—not compete for your attention.
Every feature is designed with simplicity, performance, and long-term consistency in mind.
Instead of overwhelming you with advertisements, social feeds, or unnecessary complexity, Trinity focuses on making fasting easy to track every day.
What is Trinity?
Trinity is an offline-first Progressive Web App (PWA) for intermittent fasting.
It allows you to:
- Track fasting sessions
- View fasting history
- Monitor weight changes
- Build streaks
- Earn progression through gamification
- Continue using the app even without an internet connection
Everything is designed around a clean, responsive interface that works equally well on desktop and mobile devices.
Why Trinity exists
Many existing fasting applications share several common problems:
- intrusive advertising
- limited free features
- unreliable offline support
- vendor lock-in
- unnecessary account requirements
- cluttered user interfaces
Trinity aims to solve these problems by providing a focused experience where the primary goal is helping you maintain a consistent fasting habit.
Rather than becoming another health platform, Trinity focuses on doing one thing exceptionally well.
Who is it for?
Trinity is intended for anyone who wants a straightforward fasting tracker.
It is especially suitable if you:
- prefer minimalist software
- dislike subscriptions
- value privacy
- frequently travel
- experience unreliable internet connectivity
- want an installable web application instead of a native app
Offline-first
Trinity is built as a Progressive Web App.
That means most functionality continues working even when your device is offline.
Your fasting timer continues running locally, your previous data remains available, and changes are synchronized whenever connectivity returns.
For many users, this makes Trinity significantly more dependable than cloud-only applications.
Privacy
Your health data is personal.
Trinity is designed to minimize unnecessary data collection and to keep you in control of your information whenever possible.
No advertisements. No tracking pixels. No social feed.
Just your fasting history.
Getting started
Ready to begin? See getting started.
Continue to the next guide to learn how to create your first fasting plan, start your first fast, and customize Trinity to match your routine.
Happy fasting! 🎉