Causal
Find your real health levers
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Causal turns Apple Health measurements, quick check-ins, and real-life context into personalized wellness patterns you can inspect.
How it works
• Connect the Apple Health measurements you choose, including sleep, HRV, resting heart rate, workouts, and other supported measurements
• Answer lightweight check-ins for caffeine, stress, exercise, mood, alcohol, and your own custom factors
• Add context such as illness, travel, or a schedule change—either alongside a check-in or as an anytime note
• Review notes, check-ins, and relevant measurements in a chronological transcript
• See evolving coach findings with evidence, uncertainty, limitations, and reversible data exclusions
• Mark findings useful or off-base and run low-risk tracking experiments
Built for nuance
Personal data is messy. Causal compares alternative statistical views, checks whether patterns hold over time, and distinguishes emerging signals from better-supported ones. It describes associations in your own history rather than diagnosing a condition or claiming medical causality.
Private and optional
• You control each Apple Health permission; Causal writes only supported measurements, reviewed meal nutrition, mindful time, State of Mind, and symptoms you explicitly save
• Notes can be stored and viewed without enabling AI analysis
• Cloud coach analysis requires explicit consent and can be turned off
• Delete your account and associated data from the app
Causal is a personal wellness and self-knowledge tool. It does not diagnose, treat, cure, or prevent any medical condition and is not a substitute for professional medical care.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Version 1.0.12 replaces random check-in prompts with streak reminders, making it easier to build a consistent check-in habit.
The developer, Berry Street Research Group LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- User Content
- Identifiers
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Berry Street Research Group LLC
- Size
- 17.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Alcohol, Tobacco, Drug Use or References
Contains
Health or Wellness Topics
- Copyright
- © 2026 Berry Street Research Group LLC