Correlate

Correlate is a privacy focused, fast, capable, iPhone and iPad app for recording the things that matter to you every day. Track habits, symptoms, moods, measurements... anything you want to understand over time. Open the app, tap a few variables, and get back to your day.

There are several features to help explore your data, including reports, plots, and search tools.

Quick start

1. Add variables in Settings — give each one a name and a type (yes/no toggle or numeric slider).
2. Record daily — open the app and update your variables. Values reset each morning.
3. Add notes — jot down context at the bottom of each day.
4. Search & plot — ask questions of your data and spot patterns.
5. Build a report — export a PDF when you want to share or archive.

What's new

• 2.7 — Number variables get a precision setting, plus a cleaner daily-note experience.
• 2.6 — Reports: build a PDF from your variables and saved searches.
• 2.5 — Search with saved searches and a heat-map view of results.

Full release history →

Available on iOS.