Choose what matters.
Know when it changes.

Charts is a chart app for the health data you actually care about. Pick your metrics, see them all at a glance, and get a real-time alert the moment any of them changes. All of it on your device. None of it on a server.

Get notified at launch Coming soon to the App Store

One email when it ships. No spam, no noise — unsubscribe in one click, anytime.

Charts on iPhone: the Summary screen grouped into Heart, Sleep and Activity sections, with a notification arriving — Heart Rate Variability, unusually high today: 70 ms, higher than on 30 of the last 30 days.

Pick it once.
Then it watches for you.

Health apps show you everything, so you end up watching nothing. Charts starts with the handful of numbers that matter to you — and keeps an eye on them so you don't have to.

Choose what matters

Pick the metrics you care about from hundreds in Apple Health — resting heart rate, sleep, HRV, weight — or add your own from a file or a live API. Nothing else clutters the screen.

See it at a glance

Everything you chose lives on one Summary screen and in Home Screen widgets. One look tells you where things stand — no digging through tabs.

Know the moment it changes

Charts watches your data in the background and tells you as soon as something shifts — a goal slipping behind pace, an unusual reading, a trend worth knowing about.

Everything you'd expect.
A few things you wouldn't.

Built by one person who wanted to stop checking five apps a day — and kept going.

Deep Apple Health support

Heart, activity, sleep stages, breathing, body measurements — hundreds of metrics to choose from, charted the way Health should have.

Alerts on your terms

Set goals on any metric and choose how chatty Charts is — Quiet, Balanced or Frequent. It never sends more than you asked for.

Bring your own data

Drop in a CSV or point Charts at a live API — supplements, finances, home sensors. Charted and watched just like your Health data.

Home Screen widgets

Monitor without even opening the app — any metric, any range, small, medium, or large.

Insights that earn their place

Quiet, curated correlations — how sleep tracks with heart rate, caffeine with rest. No AI coach, no noise.

Actually private

No servers, no accounts, no analytics. Your data and your alerts are worked out on your device. This page has no trackers either.

Be the first to know

Charts is in the final stretch before launch. Leave your email and you'll get exactly one alert from us: the day it lands on the App Store.

One email when it ships. Unsubscribe in one click — see our privacy policy.