Report updated May 20, 2026
Sleep
For individuals seeking data-driven sleep optimization and those who struggle with traditional alarm clocks.
Sleep is an established health & fitness app that is free with in-app purchases. With a 4.6/5 rating from 400K reviews, it shows polarized user reception. Users particularly appreciate gradual volume escalation and vibration patterns provide a gentle wake-up experience for daily users, though audio playback stops unexpectedly when the device screen locks or enters background mode remains a common concern.
What is Sleep?
Sleep as Android is a smart alarm and sleep-cycle tracking app for Android and iOS that uses sonar and wearable data to optimize wake-up times.
Users hire the app to solve the specific pain point of morning oversleeping and to gain data-driven insights into their sleep quality through non-invasive tracking.
Current Momentum
v2.7 · 1w ago
Maintenance- Expanded wearable support for modern smartwatches.
- Refined neural network sleep sound models.
Active Nemesis
BetterSleep: Relax and Sleep
By Ipnos Software
Other Rivals
7-Day Rank Pulse 🇺🇸
Health & FitnessNo ranking data
Rating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Uses ultrasonic sound waves to monitor sleep cycles without requiring the phone to be in the bed.
Forces users to complete tasks like math problems or barcode scanning to disable the alarm.
Neural networks classify sleep sounds including snoring, sleep talking, and sickness indicators.
How much does it cost?
- Free tier with core functionality
- Premium tier with 7-day trial
Freemium model uses a 7-day trial to convert users to a subscription after demonstrating core sleep tracking and AI analysis.
Who Built It?
Mosaic S.r.l.
Scaling iconic digital utilities through data-driven improvements to help users navigate weather, language barriers, and communication security.
Portfolio
13
Apps
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Explore the full Mosaic S.r.l. report
Portfolio breakdown, audience, momentum, and every app published by Mosaic S.r.l..
What do users think recently?
High confidence · Latest 85 of 99 total reviews analyzed · Based on 99 reviews. Signal may be noisy.
How did the latest release land?
What is the recent mood?
Recent user voice shows a mixed sentiment. Users appreciate gradual volume escalation and vibration patterns provide a gentle wake-up experience for daily users and comprehensive sleep tracking data helps users identify patterns and improve their nightly rest quality, but report audio playback stops unexpectedly when the device screen locks or enters background mode and aggressive monetization through subscription prompts and ads disrupts the user experience post-update.
What Users Love
What Frustrates Users
What Users Want
How have ratings & review volume moved?
Rating, review sentiment, and total reviews over time, with release markers showing the post-launch impact.
Vertical markers = app releases. Hover any release for the post-release impact delta.
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Sleep?
How's The Health & Fitness Market?
How does it evolve in the Health & Fitness market?
Sleep as Android maintains a stable presence in the Health & Fitness category, though its grossing rank lags behind its free-tier reach. The volatility in grossing ranks across smaller markets suggests that monetization friction is currently outpacing the app's discovery advantage.
Rank progression
10 active rankings tracked — 30-day window
Which niche is Sleep in?
Explore the full Sleep Monitors niche
Every app in this space — 6 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
With nearly 400k reviews and a decade of market presence, this app represents the primary benchmark for sleep-tracking and sound-based relaxation.
Differentiators
- Offers a massive library of proprietary soundscapes and guided content that creates a high-retention content flywheel.
- Provides deep integration with sleep-tracking metrics that directly compete with the target's core value proposition.
- Maintains a long-standing brand authority in the sleep-aid category that drives organic acquisition at scale.
Head to head
The target must decide whether to compete on content volume or double down on the utility of the smart alarm; attempting to match the content library of BetterSleep is a high-cost, low-margin defensive move.
Contenders(3)
A strong contender that bridges the gap between physical hardware and digital software, creating a unique ecosystem moat.
Differentiators
- Integrates seamlessly with physical smart-light hardware, creating a hardware-software ecosystem that is difficult to replicate.
- Maintains an extremely high release cadence to ensure the app remains the central hub for their physical devices.
A specialized competitor that focuses heavily on the tracking and analytics aspect of sleep, appealing to data-driven users.
Differentiators
- Prioritizes granular sleep analytics and health metrics over the relaxation-focused content found in other apps.
- Positions itself as a clinical-adjacent tool for users interested in deep-dive health monitoring.
A high-velocity competitor with massive review volume that directly mirrors the target's feature set of tracking and soundscapes.
Differentiators
- Aggressive feature deployment cycle with 5 releases in the last six months keeps the product feeling fresh.
- Combines sleep tracking with comprehensive sound-based relaxation tools to capture both utility and wellness users.
New entrants(1)
An emerging threat from a high-performing developer that demonstrates rapid iteration and effective monetization strategies.
Differentiators
- Utilizes 'lazy' fitness positioning to lower the barrier to entry for users intimidated by traditional workout apps.
- Rapidly iterates on onboarding flows to maximize conversion rates for casual, non-athlete users.
Compare Sleep against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Sleep
Strengths to defend, gaps to attack
Core Strengths
- 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.
Critical Frictions
- 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.
Growth Levers
- Visual noise-recording indicators would improve the utility of sound-analysis features.
- B2B sleep-health data partnerships offer untapped distribution channels.
- Expanding radio genre variety addresses specific user-requested alarm customization.
Market Threats
- BetterSleep's content-volume advantage siphons users seeking relaxation over utility.
- ShutEye's aggressive feature cadence keeps the product feeling fresher.
- Ad-disrupted user experiences drive churn toward cleaner, ad-free alternatives.
What are the next best moves?
Fix background audio persistence because audio-stop complaints are the #1 frustration theme → reduce churn.
Audio playback failure is the top-cited complaint in recent sentiment analysis.
Trade-off: Pause the radio-genre expansion sprint — stability is a higher-impact retention lever.
Audit monetization frequency because ad-disruption is a top-3 complaint → stabilize long-term user sentiment.
User sentiment analysis shows significant friction post-update regarding subscription prompts.
Trade-off: Same-quarter capacity available — no major lever displaced.
A counter-intuitive read
The app's #1 risk is its reliance on complex, high-friction utility; a single, simplified 'one-tap' competitor could drain the casual-entry funnel faster than any content-heavy rival.
Feature Gaps vs Competitors
- Massive proprietary soundscape library (available in BetterSleep but absent here)
- Community-driven content and social layers (available in Insight Timer but absent here)
Key Takeaways
Sleep as Android wins on utility-first sleep tracking, but the latest monetization friction and background audio bugs threaten retention, so the PM must prioritize stability over new content to defend the core user base.
Where Is It Heading?
Mixed Signals
The sleep-aid market is consolidating around content-heavy relaxation apps, leaving utility-focused tools like Sleep as Android exposed to churn if technical performance slips. The current update cadence shows active maintenance, but the monetization friction suggests a pivot toward short-term revenue that risks the long-term retention of the power-user base.
Audio playback failures in the latest version erode daily habits, compounding the rating drag already visible on Android.
Active investment in neural network models for sound classification maintains the app's technical edge over relaxation-focused competitors.