The simple way to discover what affects
how you feel.

Stop guessing what makes you feel better. Check in daily, run experiments, build routines, and let AI reveal what actually works — all from one app.

Download on the App StoreGet it on Google Play
Free to downloadNo account neededPrivate — Data stays on device
Watch demos & tutorials on YouTube
Connects Apple Health, Oura & Google HealthCustomizable Sleep ScoringAI-powered Daily Brief & export summariesCapture Weather/Pollen data with each entryCustom reminders for supplements, activities, and check-insWorks on iOS & Android

Your Personal Health Laboratory

From a quick check-in to AI-powered insights and a personalized daily routine.

Check-in: Log how you feel, rate issues, and start experimentsToday: Your health dashboard with sleep, steps, HRV, Daily Brief, and experimentsHistory: Your private health journal with weather, sleep data, and context
Routine: Build a time-blocked daily routine with remindersReports: Generate rich PDF exports with AI summaries for your doctorFree version: Unlimited check-ins, experiments, routines, and exports

Private by Design

No account required, no ads, no tracking, and your health journal stays on your device unless you choose to export, back up, or use AI analysis.

Read our privacy explanation in plain English

No Account Required

Start using the app immediately. No email, no sign-up, no friction.

Data Stays On Device

Your check-ins live on your phone unless you choose to back them up.

No Selling. No Ads.

We don’t sell your health data. No advertising network tracking. Ever.

Features and Pricing

The core app is free forever. Unlock the full toolkit with a one-time Pro purchase, or add AI-powered analysis with a Pro + AI subscription.

Free

$0

Free forever

  • Unlimited daily check-ins with slider & notes
  • Customizable positive & negative tags
  • Track up to 3 supplements or medications
  • Build a daily routine with time blocks
  • Multiple daily reminders
  • Unlimited check-in history with context
  • Run personal health experiments
  • Export history to PDF / CSV
  • Weather tracking (temp & humidity)
  • Define what you’re fixing and how
  • 7-day trends chart
PRO

Pro

$19.99

One-time purchase — yours forever

  • Everything in Free, plus:
  • Unlimited supplements & medications
  • Multiple routines with time-blocked schedules
  • Health app integration (Apple Health, Oura, Google Health)
  • HRV, resting heart rate, deep sleep & REM tracking
  • Sleep score breakdown with targets
  • Air quality (AQI) & pollen tracking
  • Supplement & medication reminders
  • Experiment templates library
  • Extended trends (30, 90, 180 days, 1 year)
  • Insights & Key Results
  • Cloud backup & restore
  • Export PDF & CSV reports for your doctor

Your complete personal health laboratory. Perfect if you prefer to share data with a health professional or work things out on your own.

Get Started
PRO + AI

Pro + AI

$2.99/mo

or $24.99/year — includes all Pro features

  • Everything in Pro, plus:
  • AI-powered pattern analysis & correlations
  • Automatic Daily Brief with sleep-aware timing
  • Preset analyses: Key Insights, Sleep & Energy, Correlations, Issue Summary
  • Multi-turn conversations with chat history
  • AI-generated personalized daily routines
  • AI summary in PDF exports for your doctor
  • Export & share AI conversations
Get Started
Robin cycling outdoors

Why I Built This

Hi, I'm Robin. For years I struggled with brain fog, tiredness, insomnia, and exercise fatigue. I knew something was off, but I couldn't pinpoint what was helping and what wasn't. None of the health apps I tried asked the simple question: how do you actually feel today?

So I built Health Check-In as my own personal health laboratory—and it worked.

Read My Full Story

We'd Love to Hear From You

Found a bug? Have a feature request? Questions about the app? We're always listening and working to make Health Check-In better.

Send Us FeedbackWatch on YouTube
Health Check-In on Product Hunt