Amazing
The only app I’ve seen to try and make sense of all of this different data.
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About
Track weight and body composition trends to understand meaningful changes beyond daily fluctuations. Import data from Apple Health or enter it manually. Gain insights into progress, plateaus, and what to measure next.
✓Body composition trend analysis
✓Manual measurement entry
✓Apple Health import
✓Signal Score for data interpretation
✓Progress and plateau tracking
✓Private data storage
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What's New in LeanSignal
1.5
October 3, 2026
LeanSignal 1.5 makes it easier to see what matters in your measurements. • A simpler Dashboard puts your current signal, next step, and latest check-in first. • Reports keeps trends and comparisons together, with forecasts, goals, and supporting evidence available when you want them. • A clearer monthly review explains your progress and what to measure next. • Larger supporting text, improved layouts for accessibility text sizes, and cleaner charts make your results easier to read. Your existing measurements, goals, and Pro access stay with you.
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Subscriptions & In-App Purchases
$19.99
LeanSignal Pro Lifetime
Unlock deeper body-composition insights and reports.
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FAQ
What is LeanSignal's Signal Score?
The Signal Score analyzes measurement coverage, consistency, recency, and agreement between different signals to explain what the evidence supports, where uncertainty remains, and what to measure next.
Does LeanSignal have ads?
No, LeanSignal contains no advertising or third-party analytics, ensuring a private user experience.
How does LeanSignal handle user data privacy?
LeanSignal requires no account and stores all measurements and photos privately on your device. Optional Face ID or device-passcode protection is also available.
Can I import data into LeanSignal?
Yes, you can import measurements from Apple Health with optional, read-only access through HealthKit, or enter them manually.
What are the Pro features in LeanSignal?
LeanSignal Pro offers deeper interpretation and reports, including Pro comparisons, monthly reviews, cautious forecasts, body-composition tools like DEXA calibration, private photo comparisons, and PDF reports.
Is LeanSignal a medical device?
No, LeanSignal provides informational estimates and trend guidance. It is not a medical device and does not provide medical advice or clinical measurements.
What devices does LeanSignal support?
LeanSignal is currently supported on iPhone devices.
How often is LeanSignal updated?
The latest version, 1.0.4, was released on September 14, 2026, indicating active development and updates.
