Haily

Understand your body

Wearables measure. Haily explains.

Haily connects your nutrition, sleep, digestion, and symptoms and shows you why you feel how you feel — clear answers you can act on, verifiable from week one. Relaxed tracking, no streak pressure.

The first app that tells you what you need to know

Your devices already capture your steps, sleep depth, and stress levels with remarkable precision. You have access to more physiological data than ever before.

Yet one essential thing is still missing: clear, personalized guidance.

You're shown numbers and trends, but not the "why" behind your good or bad days. You can see your metrics, but you don't get meaningful, personalized suggestions about what you should change to improve your well-being. Most apps track only one dimension—sleep or nutrition or activity—without revealing how these factors influence each other in your daily life.

You end up with accurate statistics, but very little clarity about which specific habits truly support your energy, mood, and long-term health.

A clear picture of your well-being

Haily transforms your meals, activities, sleep, supplements, and daily feelings into a coherent picture of your well-being. Instead of giving you generic advice or forcing goals, Haily observes how your body responds to your real habits and highlights what actually works for you.

Through natural language input and a holistic health model, Haily goes beyond tracking—it explains.

What do you want to figure out?

Sleep better

Why last night was good or bad — Haily connects each night to what you ate, did, and felt.

Calm your gut

Spot what irritates your digestion — link bloating and discomfort back to your meals.

Understand symptoms

Link symptoms with meals and nutrients — see what sets them off.

More energy

Sleep, activity, and nutrition together — see what helps you in daily life.

Optimize your diet

Deep nutrient data and insights into which foods close your gaps.

Weight & calories

Calories and macros when you want them — by voice, photo, or barcode. A means, not the point.

How Haily Works

1

Track your day

By voice, photo, or barcode — plus text. Haily turns meals, sleep, activity, and more into structured health data with no form stress.

2

See what actually helps you

Whether you want to sleep better, calm your digestion, have more energy, or understand a symptom — Haily shows which foods and habits help and which hold you back.

3

Personalized Insights

Haily uncovers correlations unique to your lifestyle and shows you which habits improve or reduce your well-being.

4

Better Habits Through Understanding

There are no forced goals or arbitrary targets. You make changes based on what your body actually responds to.

What Sets Haily Apart

Nutrition, symptoms & the big picture

Many symptoms are linked to what you eat. See macros, micros, and supplements, how activities and sleep fit in, and how it all connects in one system—including cycle, mood, and wellbeing.

Insights Based on You

Haily's recommendations come from your own data and patterns, not generic averages.

Natural Data Input

Log with simple conversations powered by modern language models.

High-Resolution Activities

Track everything that impacts your well-being: running, yoga, reading, gaming, deep work, or downtime.

Supplement Tracking

See how vitamins, minerals, powders, and other supplements shape your nutritional profile.

No goal pressure

Your body’s signals guide your improvement—no guilt, no arbitrary targets. The algorithms are built for real life, including incomplete days.

Designed for You

Haily is for you if you care about your health, enjoy data, and want to understand the real drivers behind your energy and mood. Whether you're managing a demanding schedule, trying to build better routines, or exploring preventive health, Haily helps you make informed decisions based on your own body.

Backed by Science, Powered by Data

Haily is developed by a team with expertise in biology, computer science, and data analysis. Our approach draws on research in metabolism, nutrition, circadian rhythms, physical activity, and subjective well-being. With an advanced technical stack and evidence-informed modeling, Haily turns complex health data into practical, easy-to-understand guidance.

Start Understanding Your Patterns

Haily is on the App Store and Google Play. See how your habits support your energy and long-term health—and get insights that work even when your data has gaps.