Gradual: Biological Age
Labs, vitals, fitness & habits
Free · In‑App Purchases
Know your real age. Gradual calculates your biological age from five health dimensions — then gives you the tools to change it. Labs, vitals, workouts, all in one place.
Gradual calculates your biological age and shows you exactly what's driving it — so you can take action where it matters most.
YOUR BIOLOGICAL AGE
Your Gradual Age is a composite biological age built from five pillars: cardiorespiratory fitness, autonomic health, sleep quality, vascular function, and PhenoAge blood biomarkers. See how each dimension compares to your chronological age, track your trend over time, and share your results.
DAILY READINESS
Know when to push and when to recover. Your Readiness Score combines HRV, resting heart rate, sleep, training strain, and mood — calibrated to your personal baselines, not population averages.
HABITS THAT COMPOUND
Small inputs, big outcomes. Build daily routines around supplements, fitness goals, mindfulness, and sleep targets. Track streaks, monitor weekly consistency, and review your history. No friction, just follow-through.
IMPORT YOUR LABS
Upload a PDF from any lab provider and Gradual extracts the results automatically. Track 40+ biomarkers across cholesterol, glucose, hormones, vitamins, inflammation, and more. Every optimal range is backed by peer-reviewed citations.
CONNECT YOUR DEVICES
Sync with Apple Health and Strava. Sleep, HRV, resting heart rate, VO2 max, training load, and more flow in automatically — no manual entry.
AI INSIGHTS
Get context-aware analysis across your habits, vitals, and labs. Tap any insight to ask follow-up questions. Rule-based insights are always free.
TRAINING LOAD
Track weekly volume across running, cycling, and strength. See your chronic load trend and get recovery recommendations based on your current state.
GRADUAL PRO
Unlock the full experience:
• Advanced AI analysis with interactive follow-up chat
• 10 AI-powered lab imports per month (free users get 1)
• Smart bedtime reminders for unfinished habits
• Priority support
Habit tracking, Gradual Age, Readiness Score, and biomarker tracking are free for all users.
PRIVACY FIRST
Your health data is encrypted on-device and synced via your private iCloud account. Nothing is stored on our servers. We never sell your data.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Supplemental Terms of Service: https://gradual.health/terms-of-service.html
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
Fixed an Apple Watch sync issue and added new Sleep Debt data to the Weekly Recap.
The developer, Paul Silvis, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- Contact Info
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Paul Silvis
- Size
- 74.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Apple Watch
Requires watchOS 10.0 or later.
- Languages
- French
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Gradual Pro Monthly $3.99
- Gradual Pro Annual $39.99
- Copyright
- © Lawton Labs