Sleep Key - Tracker, Sound
D-Tier · PoorStop waking up tired. Sleep Key is the intelligent sleep tracker.
App overview
- Developer
- WAQTO LLC
- Pricing
- Free
- Latest update
- Mar 13, 2026
- Audit status
- Audited
About Sleep Key - Tracker, Sound
Stop waking up tired. Master your rest with Nyxa. Nyxa is the intelligent sleep tracker, smart alarm, and comprehensive sleep analyzer designed to help you build better bedtime habits. By combining clinical-grade data analysis with your device's advanced sensors, Nyxa gives you a complete picture of what happens when the lights go out. Whether you struggle with snoring, insomnia, sleep debt, or simply want to optimize your morning routine, Nyxa provides the data you need to wake up feeling energized, not groggy. THE PROBLEM: WHY ARE YOU TIRED? Traditional alarm clocks ignore your body's biological needs. They jolt you awake at a specific time, often interrupting a cycle of deep sleep or REM sleep. This leaves you with "sleep inertia"—that groggy, heavy feeling that even coffee can barely fix. Furthermore, environmental factors like room noise, temperature, and even the weather outside can secretly sabotage your recovery. THE SOLUTION: NYXA Nyxa turns your phone into a private sleep laboratory. It monitors your movements, heart rate, respiratory rate, and bedroom sounds to determine exactly where you are in your sleep cycle. CORE FEATURES INTELLIGENT SMART ALARM Wake up at the perfect moment. Nyxa monitors your sleep cycles in real-time. Instead of a fixed time, you set a 30-minute wake-up window. The app waits for your lightest sleep phase—when your body is naturally ready to wake up—and gently activates the alarm. The result? You wake up feeling refreshed, alert, and ready to conquer the day. ADVANCED SNORE AND AUDIO RECORDER Do you talk in your sleep? Do you snore? Is a noisy neighbor ruining your night? • Snore Detection: Automatically detects and isolates snoring sounds. Useful for identifying trends or sharing with a doctor. • Sleep Talking: Capture funny or insightful moments from your dreams. • Environmental Noise: Analyze ambient noise levels to see if your bedroom is too loud for deep sleep. • Playback: Listen to your audio highlights the next morning. EXCLUSIVE: WEATHER AND SLEEP CORRELATION Nyxa is one of the only trackers that correlates your sleep quality with local weather conditions. • Barometric Pressure: See if pressure changes cause you restless nights. • Temperature & Rain: Discover if you sleep deeper during thunderstorms or heatwaves. • Data-Driven Insights: Use this data to adjust your room temperature or bedding for a better night's rest. HEALTH AND VITALS MONITORING We go beyond simple time tracking. Nyxa leverages Apple Health integration and device sensors to track vital metrics: • Heart Rate Analysis: Visualize your resting heart rate curve. A "dip" in heart rate is a key indicator of restorative sleep and physical recovery. • Respiratory Rate: Monitor your breathing variance to detect irregularities or potential obstructions. • Sleep Stages: View detailed graphs showing exactly how much time you spent in Light Sleep, Deep Sleep, and REM (Rapid Eye Movement). SLEEP NOTES AND LIFESTYLE TAGS Track how your daily choices affect your night. Tag your sessions with variables like "Caffeine," "Alcohol," "Late Workout," "Stress," or "Screen Time." Over time, Nyxa will show you specifically which habits are hurting your sleep quality score. 100% PRIVATE AND OFFLINE Your health data is personal. Most sleep apps require you to create an account and upload your intimate bedroom recordings to the cloud. Nyxa is different. We prioritize on-device processing to ensure your privacy. WHO IS THIS APP FOR? • People who wake up feeling groggy or exhausted. • Partners trying to prove who snores louder. • Athletes focused on recovery and physical performance. • Bio-hackers interested in the quantified self. • Anyone who wants to understand their health without sacrificing privacy. Start sleeping better tonight. Download Nyxa today. Terms of Use: https://github.com/moesaid/SleepKey-Public/blob/main/TERMS_OF_USE.md
Audit results
Key findings followed by the detailed performance signals.
Strengths
- 95% scoring evidence coverage
- Well localized storefronts
Watchouts
- Update cadence needs attention
- 13 trackers or sensitive permissions detected.
Performance breakdown
Signals from the latest available audit data.
Store rating
Poor0.0 from 0 ratings
Freshness
AverageLast updated Mar 13, 2026
Binary size
PoorAwaiting data average install size
Privacy
Critical13 known trackers or sensitive permissions
Languages
Excellent5 supported languages
Store presentation
Average6 screenshots
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