| Core Identity |
| Developer | Matt Bruce | Sleep Tracker & Alarm Clock by Delightroom | 震 任 | Sleep Cycle AB | Apple | Ipnos Software Inc. | Endel | Rise Science Inc |
| Category | Utilities | Productivity | Utilities | Health & Fitness | Utilities | Health & Fitness | Health & Fitness | Health & Fitness |
| Platform | Android, iOS | Android, iOS | iOS, Android | iOS | iOS, Android | iOS | Android, iOS | iOS, Android |
| Store Metrics |
| Rating | 0.0 / 5 | 2.5 / 5 | 4.7 / 5 | 4.7 / 5 | 2.5 / 5 | 4.7 / 5 | 4.6 / 5 | 4.7 / 5 |
| Ratings Count | 0 | 17,643 | 243 | 22,456 | 18,144 | 390,086 | 32,098 | 56,378 |
| Price | USD3.99 | Free | $1.99 | Free | Free | Free | Free | Free |
| Release Date | Feb 11, 2026 | Oct 25, 2021 | Jan 22, 2016 | Jul 23, 2009 | Oct 25, 2021 | May 7, 2009 | Jun 21, 2018 | Aug 19, 2019 |
| Last Updated | Feb 12, 2026 | Dec 12, 2025 | Nov 10, 2022 | Apr 22, 2026 | Dec 12, 2025 | Apr 23, 2026 | Mar 25, 2026 | Apr 9, 2026 |
| Sentiment & Reviews |
| Sentiment | negative | positive | mixed | negative | mixed | negative | negative | - |
| Score | 35/100 | 68/100 | 45/100 | 35/100 | 35/100 | 25/100 | 25/100 | - |
| Praises | - All-in-one utility combining alarm, timer, and stopwatch functions provides significant convenience for daily time management
| - Waking Effectiveness
- Mission-Based Challenges
| - Radio signal simulation provides reliable time synchronization for atomic watches in signal-dead zones
| | - The clock application provides a reliable and ad-free experience for daily alarm management
| - High quality sleep sound variety provides effective relaxation for users struggling with nightly rest
| - Effectiveness for Focus and Sleep
| - |
| Complaints | - Alarm reliability issues post-update cause missed events and significant user frustration regarding core functionality
| - Intrusive Ads & Monetization
- Technical Reliability Issues
| - Alarm reliability issues post-update cause missed wake-up times and silent notifications for users
| - Aggressive Monetization & Ads
- Technical Bugs & Reliability
| - Alarm reliability issues including silent alarms and unexpected auto-dismissal behaviors
| - Aggressive paywall implementation restricts access to previously free content and core sound features
| - Deceptive Billing and Subscription Practices
- False Advertising
| - |
| Requests | - Granular control over alarm settings including custom snooze duration and more jarring sound options
| - | - Customizable alarm settings including jarring sound options and snooze control for better reliability
| - | - Bulk adjustment features to shift multiple alarms forward or backward simultaneously
| - Addition of a lower-cost monthly subscription plan for casual or intermittent users
| - | - |
| Strategic Intel |
| Strengths | - AlarmKit-powered alerts bypass iOS silent mode
- Minimalist design reduces bedside cognitive load
- Ad-free premium model avoids user-tracking friction
| - Proprietary 'Prevent Turn Off' technology
- Diverse and high-friction dismissal missions
- Massive Android install base (2M+ ratings)
| - Audio-based signal transmission provides a hardware-agnostic solution for legacy timekeeping
- Wear OS integration increases switching costs for Android users
| - Established brand with 40M+ downloads
- Patented non-wearable tracking tech
- Advanced AI coaching (Luma/SleepGPT)
| - System-level integration with the Health app stack
- Native Apple Music library access for custom wake-up sounds
- Ad-free, privacy-focused utility model
| - Specialized noise-focused soundscape environment sustains functional utility
- HealthKit-integrated sleep tracking drives daily habit formation
| - Patented real-time AI sound generation
- High-profile artist partnerships (Grimes, James Blake)
- Superior visual design and UI/UX
| - |
| Weaknesses | - Alarm reliability failures post-update
- Complex UI dismissal flow increases interaction steps
- Paid-upfront model limits user acquisition
| - Poor iOS platform parity (2.5 star rating)
- Ad-delivery logic interfering with alarm functionality
- Reports of unauthorized subscription charges
| - Alarm reliability regressions post-update
- UI complexity increases friction for standard daily alarm tasks
| - Declining user sentiment
- Technical bugs (alarm/overheating)
- Aggressive monetization of paid users
| - 2.5-star rating on iOS
- Alarm reliability regressions in the latest release
- Lack of confirmation safeguards for alarm deletion
| - Aggressive paywalling of previously free content alienates long-term users
- Technical instability post-update disrupts nightly sleep routines
| - Predatory billing reputation and difficult cancellation
- High annual cost ($119) compared to peers
- Marketing/Product content mismatch
| - |
| Pricing | paid | freemium | freemium | freemium | free | freemium | subscription | freemium |
| Momentum | Maintenance | Maintenance | Zombie | - | Maintenance | Active | Maintenance | Intense |
| Update Cadence | 2 versions, 1 majors/6mo, ~62d avg | 3 versions, ~56d avg | 5 versions, 1 majors/6mo, ~474d avg | - | 2 versions, ~117d avg | 3 versions, ~19d avg | 5 versions, ~9d avg | 5 versions |
