| Core Identity |
| Developer | Tantsissa | Petr Nálevka (Urbandroid) | Apple | ONE ELEVEN HOLDINGS, LLC | DEEP FLOW SOFTWARE SERVICES | Apirox, s.r.o. | US Department of Veterans Affairs (VA) | Petr Nálevka (Urbandroid) | Mosaic S.r.l. | Resmed |
| Category | Health & Fitness | Lifestyle | Health & Fitness | Health & Fitness | Health & Fitness | Medical | Health & Fitness | Health & Fitness | Health & Fitness | Medical |
| Platform | iOS | Android | iOS | Android, iOS | Android, iOS | iOS, Android | iOS, Android | Android, iOS | iOS, Android | iOS, Android |
| Store Metrics |
| Rating | 4.7 / 5 | 4.6 / 5 | 3.5 / 5 | 4.5 / 5 | 4.8 / 5 | 4.5 / 5 | 4.6 / 5 | 3.3 / 5 | 4.3 / 5 | 4.7 / 5 |
| Ratings Count | 61,155 | 390,243 | 80 | 17,920 | 14,126 | 13,050 | 10,425 | 123 | 9,778 | 105,771 |
| Price | USD8.99 | Free | Free | Free | Free | Free | Free | Free | Free | Free |
| Release Date | Dec 20, 2016 | Oct 24, 2010 | Jun 22, 2020 | Nov 3, 2018 | Sep 9, 2024 | May 13, 2015 | Jun 5, 2013 | Nov 1, 2023 | Jun 5, 2019 | Sep 2, 2016 |
| Last Updated | Nov 29, 2025 | May 6, 2026 | Dec 12, 2025 | Sep 10, 2025 | May 14, 2026 | May 15, 2026 | May 11, 2026 | Nov 19, 2025 | Jun 24, 2025 | Apr 15, 2026 |
| Sentiment & Reviews |
| Sentiment | positive | positive | - | - | negative | negative | positive | mixed | mixed | negative |
| Score | 75/100 | 75/100 | - | - | 25/100 | 35/100 | 85/100 | 45/100 | 65/100 | 25/100 |
| Praises | - Detailed sleep metrics and health insights provide actionable data for improving daily sleep quality
| - Gradually increasing alarm volume and vibration settings prevent jarring wake-up experiences for long-term users
| - | - | - Calming audio soundscapes help users fall asleep faster during their nightly routine
| - Reliable sleep tracking functionality provides useful insights into snoring and sleep talking patterns
| - Clinical credibility and evidence-based approach
| - Effective blue light filtering reduces eye strain and improves sleep quality for sensitive users
| - Gradual volume escalation and vibration patterns provide a gentle wake-up experience for daily users
- Comprehensive sleep tracking data helps users identify patterns and improve their nightly rest quality
- Integration with wearable devices enables accurate monitoring of sleep modes and heart rate metrics
| - Daily sleep score tracking provides motivation for users adapting to therapy
|
| Complaints | - Inaccurate sleep detection logic incorrectly logs inactivity or television viewing as actual sleep time
| - Recent monetization changes including ads and subscription pressure frustrate long-term users who previously purchased the app
| - | - | - Aggressive weekly subscription pricing creates significant friction for new users during the trial
| - Inaccurate AI analysis generates false recordings of sounds that do not exist in the environment
| - Dated and utilitarian user interface
| - Aggressive monetization and paywalls for basic features frustrate long-term and new users alike
| - Audio playback stops unexpectedly when the device screen locks or enters background mode
- Aggressive monetization through subscription prompts and ads disrupts the user experience post-update
- Complex navigation and poor integration with external hardware frustrate users attempting to set up tracking
| - Equipment update button fails to function when users attempt to register new hardware
|
| Requests | - Improved synchronization with external medical device platforms like ResMed to centralize sleep health data
| - Implementation of snooze missions would provide necessary friction to ensure users fully wake up
| - | - | - | - Bulk deletion options for recorded files to manage storage consumption on mobile devices
| - | - Cross-platform support for desktop environments to extend eye protection beyond mobile devices
| - Snooze mission functionality is requested to ensure users remain awake after the initial alarm
- Visual indicators for noise recordings would help users locate specific sounds within long clips
- Expanded radio station variety including rock and metal genres for morning alarm sounds
| - Two-way data synchronization with Apple Health to share sleep metrics
|
| Strategic Intel |
| Strengths | - Zero-touch tracking mechanism creates high switching costs
- Privacy-first architecture serves as a brand moat
- One-time purchase model undercuts subscription-based competitors
| - Proprietary sonar tracking creates high switching costs
- Deep hardware integration across Wear OS and Garmin
- CAPTCHA tasks enforce daily habit formation
| - System-level integration ensures battery efficiency and zero permission overhead
- Native Sleep Focus triggers provide a distraction-free environment
| - | - Sound-mixing engine increases session duration
- Biometric integration creates user reliance
| - AI-powered snore detection functions as a core retention lever
- Apple Health integration increases switching costs for iOS users
| - Clinical credibility backed by VA/Stanford/DoD
- Evidence-based curriculum provides therapeutic efficacy
- Zero-cost access removes barriers to entry
| - Accessibility service filtering creates a functional barrier against native system-level night modes
- Smartlight integration increases switching costs by tying the app to physical hardware
- Tasker automation support secures the technical power-user segment
| - Validated tracking algorithms sustain user trust in data accuracy.
- Hardware-automation integrations create bedroom-environment lock-in.
- CAPTCHA alarm mechanics drive daily retention via utility.
| - Hardware-exclusive setup features drive AirSense 11 adoption
- Daily score tracking creates a sticky retention loop
- Integration with Apple Health centralizes patient data
|
| Weaknesses | - Inaccurate detection logic logs inactivity as sleep
- Lack of documentation for advanced metrics
- Unresponsive customer support for technical issues
| - 0.7★ Android-iOS rating gap on majority Android base
- UI navigation complexity for audio management
- Monetization shifts eroding long-term user goodwill
| - Alarm customization lacks physical or mental interaction tasks
- 3.48 rating indicates user dissatisfaction with feature depth
| - | - Weekly subscription pricing exceeds category median
- Inconsistent sleep data recording performance
| - 0.7★ Android-iOS rating gap indicates platform-specific instability
- Aggressive subscription shifts drive churn among legacy users
| - Dated, utilitarian UI/UX design
- Lack of personalized feedback loops
- No human-in-the-loop coaching
| - Subscription-gated basic features drive negative sentiment among long-term users
- Accessibility service glitches cause random service termination on newer OS versions
- 0.7-star rating gap between Android and iOS platforms
| - Audio playback instability in background mode triggers high-frequency complaints.
- Complex UI navigation hinders discovery of advanced tracking features.
- Aggressive monetization prompts erode long-term user sentiment.
| - Unresponsive hardware registration flow
- High battery consumption from background activity
- Frequent forced logout sessions
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| Pricing | paid | freemium | free | freemium | freemium | freemium | free | freemium | freemium | free |
| Momentum | Zombie | Zombie | Maintenance | Maintenance | Steady | Maintenance | Maintenance | Maintenance | Maintenance | Intense |
| Update Cadence | 1 versions, 1 majors/6mo | 1 versions | 1 versions | 5 versions | 4 versions, 4 majors/6mo, ~16d avg | 5 versions, 2 majors/6mo, ~15d avg | 2 versions, ~1d avg | 2 versions, 1 majors/6mo, ~82d avg | 5 versions, ~196d avg | 5 versions |
