BASED ON YOUR DATA

Here's what matters today.

Preffect reads what your body's already telling you and turns it into one clear action — the single highest-leverage thing for your health today. No guilt. No overwhelm. Just clarity.

4.767 ratings

Free to start · Use it solo, or sync with Apple Watch & Apple Health

Woman celebrating wellness goals with Preffect app
SEE IT IN ACTION

One personalized action.
Every morning.

Your Daily Focus changes every day because your data does. Had restless sleep? It suggests a mindful walk. Building energy? It helps you use the momentum. Not a program — just one thing that makes sense today.

Preffect
R
Daily Focus

Add berries and nuts to lunch today

You're building energy-supporting routines, and Boost Energy Levels is a great fit for one simple lunch upgrade.

Top your lunch with berries and a handful of nuts today. You'll feel a steadier lift through the afternoon.

HOW PREFFECT WORKS

One thing. Every day.
Chosen for you.

Use Preffect on its own, or connect Apple Watch, Apple Health, and your calendar for sharper recommendations. Flo and Clue integrations are coming soon, with more on the way.

01

Connect what you have — or don't

The app is fully usable on its own. If you wear an Apple Watch, use Apple Health, or want calendar context, sync them in seconds for richer signals.

02

We interpret, not just display

Raw numbers aren't helpful on their own. Preffect synthesizes your signals into context — what's changed, what it means, and what to do about it today.

03

One action, every morning

Your Daily Focus — the single thing that makes the biggest difference for your health today. Explained clearly enough that you know exactly why.

OUR APPROACH TO WELLNESS

Progress, not perfection.

Most apps add complexity. We reduce it. You shouldn't need a second job to take care of yourself.

One clear action

Success isn't doing more. It's choosing well. One good decision today compounds over months — without asking more of you tomorrow.

No guilt. Ever.

Missed a day? Your data kept flowing. When you come back, Preffect picks up exactly where you left off. No catching up required.

Here's why this matters

We don't just tell you what to do — we explain why. Understanding builds trust. Trust builds habits that actually last.

Small steps count

Day 1, you get direction. Day 7, recognition. Day 14, real insight. The longer you use it, the sharper it gets — but the effort stays the same.

PREFFECT FEATURES

Built around your life.
Not the other way around.

Every feature exists to answer one question: what actually matters today?

DAILY FOCUS

One personalized action, every morning

Based on your sleep, activity, nutrition, and how your week has been going. It changes every day because you do. Not a program — just one thing that makes sense today.

AI-POWERED LOGGING

Snap a photo. Say a sentence.

Log meals and workouts in seconds with your camera or your voice. No counting, no searching, no manual entry — even when you're not wearing anything.

PICTURE OF HEALTH

Scores that mean something

Sleep, activity, emotional wellness, and nutrition — each with plain-language breakdowns you'll actually understand.

INTEGRATIONS

Connect what you wear and track

Apple Watch, Apple Health, and calendar work today. Flo and Clue are coming soon, with more integrations on the way.

YOUR QUIET ADVISOR

Gets smarter, not louder

Over time, Preffect learns your patterns and rhythms. Recommendations get sharper. The experience stays the same: one thing, every morning.

FREQUENTLY ASKED QUESTIONS

Got questions? We've got answers.

Everything you need to know about getting started with Preffect.

How is Preffect different from MyFitnessPal or Fitbit?
Most health apps ask you to track everything and then hand you a dashboard. Preffect does the opposite — it reads the data you're already generating (through Apple Health, Apple Watch, and quick voice or photo logs) and distills it into one clear action each day. Less tracking, more knowing what actually matters.
Do I need an Apple Watch to use Preffect?
No. Preffect works on its own with just your iPhone. If you do have an Apple Watch, it syncs automatically through Apple Health for richer data — but it's completely optional. You'll get a personalized Daily Focus either way.
What happens if I miss a day (or a few)?
Nothing bad. Your data keeps flowing in the background, and when you come back, Preffect picks up exactly where you left off. No streak shame, no "catch up" screens. Just your next Daily Focus, ready when you are.
What data does Preffect use?
Preffect can connect to Apple Health to read sleep, activity, heart rate, and nutrition data. You can also log meals by photo or voice, and track workouts. The more data it has, the sharper your recommendations — but you choose exactly what to share.
How does Preffect decide what to recommend each day?
Preffect looks at your recent patterns — sleep quality, activity levels, nutrition, and emotional wellness — and identifies the single highest-leverage action for today. It's not a generic tip; it's specific to what your data is actually showing right now.
Is Preffect free?
Yes, Preffect is free to start. The core experience — including your Daily Focus and basic health insights — is available at no cost. There's an optional Spark plan for deeper insights if you want them, but you'll never hit a wall.
Woman excited about Preffect daily wellness guidance

Finally, something
that gets it.

Free to start. Works on its own, or syncs with what you already have in seconds. Your first Daily Focus arrives tomorrow morning. One thing. Chosen for you.

4.767 ratings

iOS 17+ · Apple Watch optional