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Intermittent fasting app

iOS · Android

Intermittentfasting, made easy.

Dayfast is the mobile app that makes intermittent fasting regular, motivating, and enjoyable. With 16:8 and 18:6 plans, track your fast, get reminders, and see your progress.

Download on the App StoreGet it on Google Play

Why Dayfast?

You're trying to remember when to eat and when to stop.

Complicated calorie-counting apps wear you out.

That's where Dayfast comes in.

Features · 04

One app.
Every rhythm.

01Live fasting tracker

Start a 16:8, 18:6, or custom plan with one tap. Remaining time flows on the signature ring.

02Smart reminders

Don’t miss start or end times. Gentle notifications protect your rhythm — support, not pressure.

03Progress and streaks

See completed fasts, daily and weekly summaries, and streaks clearly.

04Nutrition and activity notes

Log meals and movement alongside your fasting schedule for a fuller picture.

A fasting day · 16:8

A fasting day,
with Dayfast.

  1. 20:00 — Last meal: Your fast starts. One tap — let the timer do the counting.
  2. 23:00 — Sleep well: The ring keeps filling while you sleep. Mind your sleep and stress too.
  3. 08:00 — Water & coffee: Water, plain tea and coffee are usually fine during the fasting window.
  4. 11:30 — Gentle reminder: “Almost there!” — Dayfast checks in thirty minutes before the end.
  5. 12:00 — Fast complete: Time to eat. Your streak just grew by another day.

Plans

16:8 / 18:6 / Custom plan

What is intermittent fasting?

16
Hours fasting
  1. 1.0 — 16:816 Hours fasting
  2. 1.1 — 18:618 Hours fasting
  3. 1.2 — Custom plan∞ Your own hours

16 hours fasting, 8-hour eating window. The most common plan for beginners.

Intermittent fasting is an eating pattern where you eat during set hours and close your eating window the rest of the time. The focus is less on what you eat and more on when you eat. Dayfast helps you follow that rhythm with timers, plans, and reminders.

[ Change it anytime ]01 / 03

What's your goal?

Whatever yourgoal may be.

Pick a plan, find your rhythm. 16:8 or 18:6? Don't worry — you can change it whenever you like.

[ Drag the sliders — see your window live ]

Gentle tips for intermittent fasting

16:8Most popular plan
16:8
Last meal20:00
Break fast12:00
16 h fasting8 h eating window

The most common plan for beginners. Choose balanced, nourishing meals in your eating window.

A tip for your goalStart small; shorter windows make the first days easier.
Start with this plan
A tip for your goalDrink plenty of water; plain tea and coffee fit most plans.
A tip for your goalPrefer balanced, nourishing meals in your eating window.
A tip for your goalSleep and stress are part of the rhythm — health is whole.

Not calories. Rhythm.

While other apps make you count calories, Dayfast tracks your rhythm — simple, beautiful, and sustainable.

16:8

Effortless start

Pick your plan and start your first fast with one tap.

2

stores — App Store & Google Play

“Leave the clock to us — you focus on your goal.”

— Dayfast

Smart reminders

Never miss your fasting start or end.

0

Clutter

No clutter — only what you need.

24h

Visual progress

Rings, streaks, and charts make motivation concrete.

∞

Holistic tracking

Fasting, nutrition notes, and activity under one roof.

Who is it for?

Wherever you areon your journey.

01

Just starting

Your first time with intermittent fasting. Guidance, reminders and the feeling that you're not alone.

Guidance
02

Disciplined

Your routine is set. Keep your streak, see your history and detailed charts.

Data & streaks
03

Balanced living

You care more about energy, order and overall health than the scale. Whole-picture tracking, lasting motivation.

Sustainability

FAQ

Frequently asked questions

Can't find your answer? You can always write to us.

Write to us
What is Dayfast?

Dayfast is a mobile app that makes intermittent fasting easier to track. You choose a plan, follow a live countdown, get reminders, and see your progress.

Which intermittent fasting plans does Dayfast support?

Popular plans like 16:8 and 18:6 come ready to use. You can also set custom start and end times for a personal plan.

What is 16:8 intermittent fasting?

16:8 means fasting for 16 hours of the day and eating within an 8-hour window. It is the most common plan for beginners.

What is 18:6 intermittent fasting?

18:6 means 18 hours of fasting and a 6-hour eating window. It is a step beyond 16:8 for people with a settled routine.

Is Dayfast free?

You can download Dayfast from the App Store or Google Play and start with core fasting tracking. Check the store listing for current pricing.

What if I miss my fasting window?

That’s okay. Dayfast doesn’t judge you — continue where you left off and update your plan anytime.

How do Dayfast reminders work?

You get gentle notifications at fasting start and end so busy days don’t break your rhythm. Manage preferences in settings.

Is intermittent fasting right for everyone?

No. Intermittent fasting is not suitable for everyone. Dayfast content is not medical advice. Talk to a healthcare professional before starting — especially if you are pregnant, breastfeeding, have diabetes, a history of eating disorders, or take regular medication.

App Store & Google Play

Start today.

Leave the fasting clock to us; you focus on your goal. Start today with Dayfast on the App Store and Google Play.

Download on the App StoreGet it on Google Play

How to start with Dayfast

  1. 01Download the app from the App Store or Google Play.
  2. 02Choose a plan that fits you: 16:8, 18:6, or custom hours.
  3. 03Start your first fast with one tap and watch the live countdown.
  4. 04Turn on reminders so we’re with you at start and end.
  5. 05Strengthen your rhythm by seeing progress and streaks.