Nocty - Sleep Tracker
Daniel Ni Health & Fitness iPhoneiPadiPod touch
Nocty - Sleep Tracker is a free Health & Fitness app for iPhone and iPad by Daniel Ni. Requires iOS 26.0. Updated December 6, 2025.
- Price
- Free
- on the App Store
- Size
- 1 MB
- Age 4+
- Updated
- Dec 6
- 2025 · v1.0.3
Screenshots
About Nocty - Sleep Tracker
Waking up refreshed starts with understanding how you rest. Nocty transforms your nightly data into clear, actionable insights. By combining advanced sleep stage analysis with key health vitals, we give you a complete picture of your nightly recharge without the complexity. [Sleep Balance] One night doesn't tell the whole story. We track your cumulative sleep over time to calculate your Sleep Debt or Surplus. [Your Daily Sleep Score] Stop guessing how well you slept. We distill your night into a simple, easy-to-understand Sleep Score. Use it to gauge your energy levels and plan your day. [Detailed Stage Analysis] Deep dive into your hypnogram. Visualize exactly how much time you spent in: - Deep Sleep: For physical recovery. - REM Sleep: For mental clarity and dreaming. - Core/Light Sleep: The foundation of your rest. - Awake Time: See interruptions you might not remember. [Vital Health Metrics] We monitor the metrics that matter for your long-term health: - Resting Heart Rate: Track cardiovascular health. - Heart Rate Variability (HRV): A key indicator of recovery and stress. - Respiration Rate: Keep an eye on nightly breathing patterns. - Blood Oxygen (SpO2): Monitor breathing efficiency. [Beautiful Widgets] Keep your insights front and center. Customize your Home Screen with elegant widgets that display your Sleep Score and Vitals at a glance. Your health data is sensitive, and we treat it that way. Nocty integrates seamlessly with Apple Health to read your data securely. Your sleep analysis happens on your device.
What’s new
Version 1.0.3 · Updated December 6, 2025
- Bug fixes and improvements
App privacy
The developer, Daniel Ni, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Nocty - Sleep Tracker
Looking for apps like Nocty - Sleep Tracker? Here are 6 similar apps on the App Store. The highest rated is Sleep Tracker AI Coach – Lull (5.0/5), and 5 of the 6 are free to download.
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LongevityMate
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Trackrpe
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Sleeper – Block Apps for Sleep
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SleepOwl: Auto Sleep Tracker
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Naplane: Power Nap Timer
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Sleep Tracker AI Coach – Lull
5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Nocty - Sleep Tracker | – | Free | December 6, 2025 | |
| LongevityMate | – | Free | Oct 5, 2026 | Compare |
| Trackrpe | – | Free | May 6, 2026 | Compare |
| Sleeper – Block Apps for Sleep | – | Free | Jan 22, 2026 | Compare |
| SleepOwl: Auto Sleep Tracker | – | Free | Jun 15, 2026 | Compare |
| Naplane: Power Nap Timer | – | 0.99 USD | Sep 29, 2026 | Compare |
| Sleep Tracker AI Coach – Lull | 5.0 / 5 (1) | Free | Aug 30, 2026 | Compare |