
About
Visualize your health data to uncover hidden connections between different metrics. Understand how your habits impact your body's performance and recovery with advanced statistics and predictive insights, all processed locally on your device.
What's New in Correlate
2.3.1
July 17, 2026
A sharper, more consistent look — and a Weekly Digest that gets to the point. • A refreshed design language: one accent system across every screen — green for your body, blue for actions — with unified cards, cleaner typography, and color-coded metric categories in Deep Dive. • Correlator, refined: the X and Y axis pickers now carry the app's signature colors, and the date range (7 days to 1 year) moved out of a hidden menu into one-tap chips right above the chart. • Weekly Digest, redesigned: it now opens with the conclusion — how many metrics improved, what needs attention — with week-over-week comparison bars for every metric. • Fairer trend colors: improvements are judged by what's actually good for each metric. A falling resting heart rate now correctly shows as progress, not decline. • Under the hood: cleanup and stability improvements. All on-device, all included in the one-time purchase — no subscription, ever.
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FAQ
What is Correlate?
Correlate is a health and fitness app that visualizes your data from Apple Health to reveal cause-and-effect relationships between different physiological metrics. It helps you understand how your habits impact your body's performance and recovery.
How does Correlate use my Apple Health data?
Correlate reads directly from Apple Health (HealthKit) to analyze your physiological data. It focuses on discovering correlations and trends, offering advanced statistics and predictive insights without uploading your data to the cloud.
Is Correlate free to use?
Yes, Correlate is available for free. There are no in-app purchases or subscription fees required to access its features.
Does Correlate have ads?
No, Correlate is ad-free. The app prioritizes user privacy and a clean experience, meaning you won't encounter any advertisements while using it.
What kind of correlations can Correlate find?
Correlate automatically scans your data to find significant positive or negative correlations, such as how caffeine affects sleep latency or if running impacts HRV. It uses dual-axis charts to visualize how two metrics interact over time.
What advanced statistics does Correlate offer?
Correlate provides professional-grade metrics including Standard Deviation, Median, Variability (CV), and Range. It also helps identify outliers and long-term baselines within your health data.
What devices does Correlate support?
Correlate requires an iPhone with Apple Health data. It is designed to run locally on your device for maximum privacy and performance.
How often is Correlate updated?
The latest version of Correlate is 1.5, which was last updated on April 14, 2026. Updates typically bring new features, performance improvements, and bug fixes.










