Sleepcraft

Advanced Sleep Tracker

Only for iPhone

Free

iPhone

Precision sleep analysis. Free for a limited time. Use clinical benchmarks to identify links between daytime activity and sleep quality. Local, private data processing. Sleepcraft: Advanced Sleep Tracker & Analyzer Sleepcraft is a high-resolution utility for measuring sleep architecture and daytime activity. Designed for precision, the app provides a clinical-grade analysis of your sleep sessions using local, on-device processing to ensure total data privacy. Visual Session Mapping - 12-Hour Sleep Clock: View a high-resolution breakdown of sleep stages—Core, Deep, REM, and Awake—mapped onto a 12h clockface. - Sleep Stage Analysis: Monitor the duration and percentage of each sleep cycle to understand your nightly recovery. - Clinical Benchmarks: Evaluate your data against age-adjusted standards sourced from the NIH, CDC, and NHS. Activity and Sleep Correlation - Daytime Activity vs. Sleep Quality: Link your active energy and step count to subsequent sleep quality. - 90-Day Trend Analysis: Detect hidden patterns by analyzing 90 days of historical data from Apple Health. - Factor Tracking: Log lifestyle variables like caffeine, alcohol, exercise, and room temperature to correlate habits with physiological outcomes. Advanced HealthKit Integration Sleepcraft retrieves and processes biometric data directly from HealthKit, including: - Heart Rate & Resting Heart Rate - Heart Rate Variability (HRV) - Active Energy & Step Count - Sleep Duration & Regularity Precision Metrics - Regularity Index: Measure the consistency of your sleep schedule with 30-day tracking of onset and offset deviations. - Recovery Scoring: Analyze the 24-hour cycle of daytime strain and nightly recovery. Privacy-First Architecture: All biometric analysis is performed locally on your iPhone. Your health data never leaves your device. Why Sleepcraft? Unlike wellness apps that provide generalized advice, Sleepcraft is a precision recorder and analyzer. It is built for users who want to identify statistical links between their daily habits and their biological sleep quality.

Ratings & Reviews

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* Intuitive Dating: Sleep reports are now dated by the morning you wake up for better clarity. * Recovery UI: Added a tooltip with score breakdown. * Bug Fixes: Resolved a crash when viewing history charts with limited data.

Version 1.0.1

The developer, Nikolai Fabrika, 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 Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Seller
      • Nikolai Fabrika
    • Size
      • 12.9 MB
    • Category
      • Health & Fitness
    • Compatibility
      Requires iOS 18.0 or later.
      • iPhone
        Requires iOS 18.0 or later.
    • Languages
      English and 6 more
      • English, Japanese, Korean, Russian, Simplified Chinese, Spanish, Traditional Chinese
    • Age Rating
      13+
      • 13+
      • Learn More
      • Infrequent
        Medical Treatment information

        Contains
        Health or Wellness Topics
    • Copyright
      • © 2026 Nikolai Fabrika
  • Privacy Policy

    • More by Nikolai Fabrika