HealthTech / Mobile AppProject 19
Sleepiest Wellness
Interactive sleep app helping millions fall asleep every night.
4.8★App Store Rating
Client PartnerSleepiest UK Ltd.
Project Phase12 Weeks (Production)
Subscribers300K+ Paid
The Challenge
Laggy audio transitions and slow page loading ruined the relaxing user experience intended before bed.
Our Solution
We optimized the audio streaming buffer in React Native and designed a beautiful, dark-mode user interface.
Key Results
- Maintained a 4.8 App Store review rating across 50,000 reviews.
- Supported over 300,000 active monthly premium subscribers.
- Achieved gapless audio playback loops.
Technologies Used
React NativeTypeScriptReduxAVFoundationFirebaseNode.jsVercel
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